본문 바로가기

KICT 카지노 게임 사이트

About KICT
Research Division
Research Information
Industrial Support
International Cooperation
News & Notice

직원찾기
페이스북
블로그

KOR
전체메뉴

닫기

About KICT
Research Division
Research Information
Industrial Support
International
Cooperation
News & Notice

About KICT
Research Division
Research Information
Industrial Support
International Cooperation
News & Notice

KOR 전체메뉴 닫기

Research Information

Research Reports
Press Release
Research Facilities
Research videos

Research Reports

Home
Research Information
Research Reports

검색

TOTAL 96 Current page 7/10

Pothole-Free Fiber Reinforced Asphalt Mixture and Pothole Detection System Pothole-Free Fiber Reinforced Asphalt Mixture and Pothole Detection System Project Leader: Yoo, Pyeong Jun (Research Fellow / pjyoo@kict.re.kr) ■ Overview KICT is developing asphalt mixtures to improve road performance against traffic load and environmental load, as well as video-based pothole detection systems. The aim is to reduce the occurrence of road damage in the form of potholes, etc., which pose a risk to safe passage along roads, and to detect such damage early on and notify road management personnel. The “fiber reinforced asphalt mixture” developed is an asphalt road paving material in which the durability performance of conventional asphalt mixtures has been substantially improved. This technological advance is the first road paving material technology that utilizes glass fiber. The pothole detection accuracy of the video-based pothole detection system has been elevated to 85%, making it practical for use in field systems for pothole management. ▲ The fiber-reinforced asphalt mixture in 3D ■ Background and necessity of the study While the number of new roads being built in Korea is decreasing, the lengths of road requiring maintenance and repair are continuing to increase. This is raising the need for roads with extended service life. There have been calls for the adoption of new asphalt mixtures that are both economic and durable, as well as the means of managing such new mixtures. This will also deal with the threat to drivers and vehicle safety posed by potholes, and the massive costs in road maintenance and repair that they require. The present study has developed two types of technology. The first technology developed was a road paving material that provides improved durability performance against traffic load and environmental load while minimizing the occurrence of potholes. The second technology involves the development of a small device similar to a vehicle black box that detect irregular potholes through video and provides real-time information on road sections requiring emergency repair and restoration to road management personnel. ▲ Video-based pothole detection algorithm ■ Research details To develop road paving materials that will minimize the occurrence of potholes, the glass fiber and the waste powder generated during the production was used to develop a fiber reinforced road (asphalt) paving material with substantially enhanced durability. To maximize the reinforcement performance of the mixture and the mix efficiency during production, 2 types of reinforcing material including plastic resin-coated glass fiber and aggregate-type glass fiber granules were developed. This was followed by a mixture performance evaluation study. Go detect pothole damage on actual roads, a video-based pothole detection algorithm was developed. By developing a small, vehicle black box-type embedded video device, real-time detection of potholes on the road surface can be realized. ■ Research achievements The harmless reinforced road (asphalt) paving material is a highly durable road (asphalt) packaging material whose durability is at least 1.5 times that of generic road (asphalt) packaging materials. Thanks to its high durability, this newly developed asphalt mixture can play a major role in preventing potholes, which are a chronic problem of existing asphalt-paved roads. In addition, a video-based pothole detection device was developed, and the achievements of the research are as follows. ● 2 counts of fiber reinforced asphalt technology transfer. Contract signed for video-based pothole detector (150 million won in royalties). ● Fiber reinforced asphalt used in 8 domestic road construction sites (3 national highways, 4 expressways, 1 municipal road in Seoul) ● Fiber reinforced asphalt used in 8 domestic road construction sites (1 site on Hunwu Expressway, Yanji, China, 2 sites on Ulaan Baatar, Mongolia, 1 site in Phnom Penh, Cambodia) ● 1 count of field evaluation of video-based pothole detector equipment (on roads in Seoul) ● 10 SCI and SCIE journal articles and 20 media articles ● 9 Korean patents and 1 international (U.S.A., China) patent pending ▲Video-based pothole detection equipment ■ Expected benefits The fiber reinforced asphalt mixture technology developed in the present study enhances the durability of normal asphalt road paving to reduce the cross-sectional thickness of road paving. This also reduces the frequency of required maintenance, bringing down construction and maintenance costs. Through the development of a plastic resin-coated glass fiber aggregate and powder filler material to replace natural aggregates and stone powder filler materials, it is expected that the study will promote resource recycling. This technology, which represents the first attempt in the world to produce an asphalt mixture reinforced with glass fiber, has proven superior performance enhancements equivalent to existing, costly polymer-modified asphalts. It is expected to give Korea a competitive advantage in the international high-performance asphalt mixture market, helping the nation become a pioneer in related technologies. The video-based pothole detection technology developed together with fiber reinforced asphalt mixture technology can contribute to accelerating decision-making relating to road repairs and the accurate quantification of road repair work volume. This will only be possible if it is commercialized and adopted by road management authorities or local governments. It is also expected that the video-based pothole detection technology will help to reduce damage from traffic accidents caused by potholes. Department of Highway & Transportation Research Date2017-04-19 Hit 3119
RRAP, A State-of-the-art Platform for the Automatic Analysis of Road Signs "Ensuring the people’s safety and reducing the national budget by developing automatic road sign recognition and analysis equipment" Project Leader: Chong, Kyu-soo (Research Fellow, ksc@kict.re.kr) Road signs play the role of directing people to the place where they want to go. Therefore, road signs should be regularly maintained and improved to prevent errors. The vehicle equipped with the Road Sign Recognition and Analysis Vehicle Platform (RRAP) developed in this research collects visual information and automatically recognizes information on the name of a place and the directions indicated on road signs while being driven so as to detect wrong information and to reflect the data onto the road sign database, which enables systematic road sign maintenance. It is expected that the introduction of RRAP will promote the people’s safety and will drastically reduce the national budget. Faster and more accurate management of the 160k road signs nationwide! There are currently about 160,000 road signs nationwide on highways, national roads, and local roads, which are managed by some 300 road management offices. For the efficient management and improvement of the national road signs, the government has been running the “Road Sign System” since 2001, but it is difficult to renew the newly installed or revised road sign information in real time, and as the acquisition of onsite images and location information for road management and property information entry is performed manually, it is unrealistic to maintain the real-time information. Every year, road signs are changed due to the construction of new roads, and the government is making every effort to renew the road sign information in real time for the convenience and safety of the people. A re-survey of all the 160,000 road signs nationwide, however, will cost KRW10 billion for the onsite survey and KRW5.2 billion each year for entering and analyzing the information. Furthermore, the acquired data cannot have 100% reliability. Therefore, the introduction of a state-of-the-art equipment that can automatically detect and analyze road signs more accurately and quickly is urgently needed. RRAP development process This research aimed to develop an advanced equipment that can quickly and accurately manage and survey the 160,000 road signs nationwide. The research process was largely divided into the development of the road visual information acquisition and classification module, the development of the road sign property information extraction module, the development of the road sign property information analysis module, and the development of the RRAP-road sign system linkage module. In the first phase of the study, the research team developed a technology that collects and processes the visual-spatial information on the road based on the mobile mapping system (MMS), which, when installed in a vehicle, measures the surrounding terrain features while the vehicle is on the road, and extracts property information related to the detection of road signs. Developed in this phase of the research were the multi-sensor calibration1) S/W, the road sign survey data-gathering S/W, and the road sign detection S/W. In the second phase of the research, the research team developed an integrated program that recognizes the character and code regions from the road sign visual information, and established a database. Furthermore, the research team established a database on the property information of arrows, the names of places by direction, and the route numbers. In the third phase of the research, the research team compared and analyzed the content and location information from the road sign system database and the RRAP survey results, and developed a technology that verifies the conformity, suitability, and connectivity. Finally, the research team developed an interactive module that links the RRAP and the road sign system, and conducted a test run of the prototype at the test bed in Gangnam-gu, Seoul City and in Cheong Na District, Incheon from May to September 2015. To promote the applicability of the research outcomes, the research team presented and exhibited the research outcomes in national and international conferences and events, including the 1st Road Safety, Management Technology Meeting, the ADB Transport Forum in the Philippines, and the 25th World Road Congress Seoul 2015, and explained the developed technologies to a delegation from China as well as to the directors and staff from Mongolia who visited South Korea. ▲ Conceptual map of RRAP Activation of national and international pattern recognition and visual information acquisition industry The most important outcome of the research is the development of the state-of-the-art RRAP, which automatically detects and analyzes road signs. In particular, the automatic recognition technology of information in Korean from images taken with the national light, in convergence with the autonomous driving technology, is expected to pave the way for the advanced road information acquisition technology. Furthermore, the development of a multisensor-based road sign survey vehicle and related S/W enabled the acquisition and extraction of high-precision location-based road sign information through which the technical foundations on which the road sign database could be quickly and efficiently established and revised can be built. In fact, the prototype road sign survey vehicle developed in the research performed a complete inspection of all the signs on the seven national highways, and the acquired data on images, locations, and properties were used to update the road sign system database. Another research outcome is the maximization of the efficiency of the DB establishment process through the automation of the DB comparison and analysis tasks for updating road sign information. It established an efficient and rapid road sign database system through which the availability and reliability of the road sign system can be improved, and that can offer high-quality public service. As the first research project for commercializing the extraction of road sign property information, its outcomes will be expanded and applied to the future research on establishing a DB for various road facilities. Its economic outcomes include saving KRW10 billion in data establishment costs and KRW5 billion in analysis costs by maximizing the DB establishment and updating tasks for the road sign system. Additionally, the research ensured safety in the work environments by reducing the survey staff and duration, and drastically saved on the total project costs by improving the accuracy of the extracted information. ▲ RRAP survey equipment ▲ Vehicle equipped with RRAP It is expected that such outcomes from this study will be widely applicable to the private and public sectors. It is also expected that the research outcomes will continue to be used in the “Coordinate-based Road Sign Database Renewal Project” on national highways being promoted by the Ministry of Land, Infrastructure, and Transport based on Government 3.0, and that the introduction of the RRAP will be initiated by the Road Management Office for efficient road maintenance and repair. Moreover, these outcomes will be widely used for establishing a traffic facilities database and visual information of various road facilities for Vworld, an open platform for 3D spatial information in South Korea being built by MOLIT, and for addressing the issues of numerous outdoor billboards and standing signboards. Finally, it is expected that through the development of road- and transport-related IT technologies, the research outcomes will activate the national and international pattern recognition and visual information acquisition industries. Department of Future&Smart Construction Research Date2017-03-03 Hit 3898
Convergence of Advanced Material and Core Design Technology Gives Birth to SUPER Concrete "Ultra-high-strength, high-performance, high-quality SUPER Concrete to lead the global construction market" Project Leader: Kim Byung-suk (Senior Research Fellow, bskim@kict.re.kr) It is often for economical reasons that social overhead capital (SOC) facilities are usually built with concrete. The average lifespan of the concrete bridges in South Korea is relatively shorter than that in advanced countries. To obtain price competitiveness in the global construction market and to build concrete facilities while reducing the national budget for such, it is necessary to develop an innovative concrete material and structural application technology. The SUPER Concrete developed in this research offers a long service life and high compressive strength and is relatively inexpensive to use. Moreover, its technical excellence has been recognized as it is currently already being used in the U.S. and in Myanmar as well as in the domestic construction market. Ultra-high-performance concrete to emerge as a new growth engine As opposed to the gradual decline of the national budget for SOC in South Korea, the construction markets in the developing countries, including those in Southeast Asia and the Middle East, are on the rise. To overcome the slump in the domestic construction market and to increase the overseas orders, it is important for South Korea to acquire technical competitiveness, which will enable it to lead the global market. While South Korea’s foreign construction orders have grown from USD59.1 billion in 2011 to USD64.9 billion in 2012, USD65.2 billion in 2013, USD66 billion in 2014, USD46.1 billion in 2015, and USD15.2 billion as of June 2016, 80% of the orders are focused on plants, and the net profit margin is poor. South Korea’s SOC technology is 80% of that of the advanced countries’ 1), and the global market share in engineering, a high-value market, was merely 1.9% in 2011. Ultra-high-performance concrete (UHPC) 2), often called “the golden key,” is a technology that can help the country’s construction industry overcome its current crisis. Amid the growing expectations on the quality, performance, and service life of SOC facilities, advanced countries like France, Germany, Japan, and USA recognize UHPC materials and application technologies for buildings as a future growth engine, sparing no expense to support related researches. South Korea has already acquired the global-leading technology in UHPC, and many of its related technologies are being used worldwide, but the related standards and regulations still have to be modified to meet the international standards. If advanced materials and key design, manufacturing, and construction technologies will be developed, and if the related standards that conform to the global standards will be established, the country’s UHPC technology will become a new growth engine that will lead to overseas construction orders. Development of SUPER Concrete manufacturing technology and structural design guidelines, onsite application to domestic bridge construction projects Aiming to develop the world’s best concrete structure construction technology, the research team first developed an ultra-high-performance concrete manufacturing technology, which includes UHPC, material models, and guidelines. As a result, we developed performance-tailored SUPER Concrete with a compressive strength of 80-180 MPa, which could achieve 20-50% manufacturing cost savings and could improve the service life by 100%. Currently, the prototype mixes of SUPER Concrete (SC80, SC100, SC120, SC120f, SC150f, and SC180f) have all been completed, and members are being manufactured. SC180f, among others, are already being used in construction projects. The developed technology was applied in July 2015 to the entry bridge to Legoland in Chuncheon, Gangwon-do, which is expected to be completed in 2017. This bridge will be recorded as the world’s first UHPC road cable-stayed bridge. In October 2015, the successful bidding of the aged bridge exchange project in Iowa, USA led to the construction of Hawkeye UHPC Bridge, which marked the first application of the South Korean technology to the U.S. market. Also in the same period, a UHPC-applied bridge was constructed in Myanmar in the expansion construction zone between Yangon and Mandalay. ▲ Areal view of the UHPC road cable-stayed entry bridge to Legoland, Chuncheon ▲ Hawkeye UHPC Bridge in Buchanan County, Iowa, USA Highway bridge in Myanmar The currently developed structural design guidelines for SC120f, SC150f, and SC180f can be used by private designers and construction companies. In particular, the structural design guideline for SC180f is written in English and was used in the construction of Hawkeye UHPC Bridge in Buchanan County, Iowa, USA, and or the highway bridge in Myanmar. The prototype mix of SUPER Concrete is very economical, incurring only 50-80% of the typical domestic and overseas manufacturing costs. It has been shown that compared to the use of the normal concrete, the use of SC80 to SC100 in a 200-800m cable-stayed bridge can reduce the superstructure construction costs by up to 16%, and the total construction costs by 10%. In case of a 150m freecasat wind turbine tower, the application of SC80 can reduce the construction costs for the steel-reinforced tower by up to 77%, and the application of SC100 to a landing stage can reduce the generic concrete construction costs by up to 18%, and the construction costs for the structural components by about 10%. The research currently being conducted by the research team is focused on the development and the improvement of the economic value of the structural system for 1000m cable-stayed bridges, and on the commercialization of SUPER Concrete technologies by developing onsite application technologies, among others. KICT’s technology is recognized by the USA and Myanmar based on the successful orders from such countries. With this research, KICT developed the word’s best 80-180MPA-class concrete materials and structural technologies based on which the institute plans to create exemplary cases of the successful advancement of the technology into foreign markets by combining the design, construction, maintenance, and project management technologies into one package solution. In addition, based on the outcomes of the entry bridge to Legoland in Chuncheon, KICT aims to help a domestic construction company win overseas contracts for longspan bridges and acquire the status of a global leader by creating an international-level guideline. The high durability of SUPER Concrete can increase the lifespan of key structural members by 100%, reduce the structure weight by over 30%, and reduce the construction costs by 10% and the carbon emissions by over 30%. The aforementioned research outcomes won a technical award from Korea Concrete Institute in 2015, and the research team was invited to give a key presentation to the International Association for Bridge and Structural Engineering and the 1st Asian Concrete Federation, and at the 1st International Conference on UHPC Materials and Structures, demonstrating the technical advancement of KICT’s SUPER Concrete technology. Furthermore, the developed technologies are being further commercialized as these are being applied in the construction of a bridge in Han River (2nd Gyeongbu Expressway) and of a DMZ-crossing bridge (The Bridge of Peace). ▲ DMZ-crossing bridge (The Bridge of Peace) Department of Structural Engineering Research Date2017-02-15 Hit 3298
Modular Public Rental Housing to Lead the Change in the Residential Facilities Trend Developing a modular public rental housing technology to cope with low fertility and aging Project Leader: Lim, Seok-Ho (Senior Research Fellow, shlim@kict.re.kr) Amid the increase of single- or two-member households due to low fertility and aging, there is a growing need for the next-generation housing model. A modular construction technology is a very economical method as it allows houses to be built like Lego blocks and to be promptly supplied and dismantled. This research is significant in that it solved the problems related to “structural safety, noise between floors, and fireproof performance,” which had long been technical challenges in modular housing, and presented a new public housing model that could flexibly cope with the country’s demographic structure and social and environmental changes. Furthermore, it will not only generate jobs by improving the structure of the construction labor market but will also promote the people’s awareness of the advantages of modular housing. Modular construction method to present a new paradigm in the construction market The household structure in South Korea is changing. Since the last several years, the number of single- or two-member households by recent high school or college graduates, university and college students, newlyweds, or senior citizens has been soaring, resulting in the increased demand for small to mid-size rental housing. The residential environment, however, is worsening, and the rent and lease fees are skyrocketing. Accordingly, “modular construction,” which is useful for building small houses, is considered a fitting solution to this socioeconomic problem. Modular construction is a construction method that modularizes over 70% of the construction components (e.g., the frame of a house, the front doors, the bathroom, and the electrical wiring) in the style of Lego blocks, and prefabricates them in the factory. As these modules can then be brought to the site and assembled thereat, this method can reduce the construction costs and can minimize the construction-related noise. Furthermore, as modular housing can be built in the small leftover sites in various corners of a city, its applicability is much greater in big cities that lack large-scale housing sites. Suffering from the excessive competition for low-price orders, the housing market in South Korea is witnessing its business value worsening, which makes it difficult to expect job creation even with its advancement into overseas markets. It is expected, however, that once the modular construction method, which proposes a new paradigm in the housing and construction market, is activated, it will set a turning point for job creation and will trigger increasing profits in overseas markets. Proposal of new public rental housing model via the demonstration of its economic, commercial, and technical viability As modular housing is manufactured in one-room modules 3 m wide and 5 m long, it is effective in buildings with repeated, identical spaces, such as dormitories, studios, or hotels, making it suitable for apartment complexes for single- or two-member households. If demolished, modular housing will not produce construction waste; instead, it can be reused for the structure of new houses, making it ideal for sustainable and eco-friendly construction. As a leading research institute for the project, KICT formed an industry-academe-research consortium to develop a new residential model for coping with low fertility and aging by utilizing the modular construction system. The research team in the consortium aimed to develop modular housing technologies with the three empirical bases of economic value, commercial viability, and technical feasibility, and to propose a new public rental housing model by establishing a demonstration complex for public rental housing. Towards this end, they first developed and verified the design technology, environmental performance, structural and construction technologies, manufacturing productivity improvement, and quality control technologies for customer-tailored modular housing construction, after which they developed a commercialization model that guarantees economic values for the promotion of the supply and commercialization of modular housing. Later, the research team built the country’s first demonstration modular complex; formulated the resident recruiting and selection plan, which included a presentation for the residents of modular housing units for residential stability and the improvement of the quality of life of non-homeowners like newlyweds and college students; and established the “operation system” for the modular-housing-tailored management and operation planning. According to the above procedures, the country’s first multi-family housing and public rental housing for 71 households (41 households in Suseo Complex, 30 households in Gayang Complex) implementing the modular construction system will be offered. Gayang Complex, whose construction has already been started, having received use permission from Seoul City in 2016, is expected to be completed in early 2017. The public rental houses are supplied to the three housing-vulnerable groups (city workers, newlyweds, and recent high school or college graduates) and to university or college students. This research is also significant in that it has established a “consumer-tailored housing supply system.” Safety • fire resistance ↑ noise • construction costs ↓, the next residential model that offers both technical and economic advantages The first core research outcome from the aspect of scientific technology is that it solved the three technical challenges of modular construction — “structural safety, sound insulation, and fire resistance” — in accordance with the housing construction standards. For the cost reduction through standardization, the project established the “MC Design and BIM-integrated Design System,” and by employting the MC design, not only did it extract a housing standardization plan; it also established and informatized the library by unit member, joint, and unit. Furthermore, it reduced the design and construction duration by 10% by reviewing the constructability with 4D simulation. Another outcome of the project is that for the first time in South Korea, it secured the structural safety of five-story or higher modular homes. To overcome the limitations of the existing technology, which had guaranteed the safety only of up to three-story modular homes, the project developed lightweight synthetic floor panels with increased shipping and lifting efficiency, and acquired technologies for optimal joint structure performance. Additionally, to address the issue of the “noise between floors,” which has become a serious social problem, the project achieved a level 3 heavyweight impact noise rating and a level 1 lightweight impact noise rating by developing the noise insulation flooring structure and walling technology, and acquired a level 1 inter-household sound insulation rating by blocking the external and inter-household noise transmission via dry-wall construction. To save energy, the heat bridge and airtightness phenomena were prevented by joining shapes in a stepped structure. Also, by installing an integrated external thermal insulation corner wall, the heat insulation and airtightness performances were improved. In the foregoing ways, the project achieved a level 2 energy performance rating for modular homes, the first time that a construction project in South Korea ever acquired such rating. ▲ Building a mock-up modular multi-family housing and 12 demonstration technologies (Jincheon Factory, Chungbuk K Corp., Aug. 2014) 1. BIM design system 2. MC design 3. Basic leveling 4. Internal joints in the modules 5. Inter-modular joints 6. Lightweight floor structure 7. Carrying fixture 8. Vibration device for assembling 9. Finishing technology for noise insulation 10. Energy-saving building skin 11. Hybrid fireproof structure technology 12. Customized fireproof filling The biggest economic achievement of the project is that it proposed a new model for public rental housing using a modular construction method that allows rapid supply and demolition. Reducing the construction costs, which was up to 130% of RC construction and the Achilles’ heel of modular housing, to 110%, and even presenting the possibility of lowering it further to 90%, was another significant outcome of the project. The research team divided the work breakdown structure into three stages (the modular manufacturing process, the general onsite construction, and the onsite modular construction) and established the “modular construction standard cost structure,” implementing the standardized codes, to improve the cost management efficiency and the accuracy in the bidding process. In addition, to ensure price competitiveness, the project performed multilateral cross-checking for cost-saving based on the participation of a major domestic modular manufacturer, and acquired economical viability by reducing the construction duration to 50% of the typical RC construction method. Department of Building Research Date2017-01-11 Hit 2847
[2015] World’s First Technology to Evaluate the Durability of Fire Damaged Structures and Predict the Remaining Service Life Project Leader: Heo Young-sun (Senior Researcher, youngsun.heo@kict.re.kr) Concrete remains in stable condition in the atmosphere. However, when it is exposed to high temperature, as in a fire, the chemical bonding of hydration products is broken and thereby, the concrete remains in an unstable condition. As time passes, it can collapse due to long-term aging through such as rehydration, recarbonation, and DEF (delayed ettringite formation). This is the unique phenomenon only observed in hardened concrete. KICT intends to develop a standard directory by analyzing the early and latter behavior of concrete constituents exposed to elevated temperatures and then apply to investigate the damage level of concrete structures by prediction, analysis and evaluation of the secondary behavior of fire damaged structures within a short period of time. Research Background and Necessity As fire accidents increase in Korea, the need to review the safety condition of structures after a fire also increases. This led to the need to develop a fire diagnosis method and remaining durability evaluation tool, both technologies that are not currently available in Korea. There is also a need to scientifically train fire specialists to ease increasing public anxiety. Research Contents The eventual goal of this research is to develop the world’s first technology to evaluate the remaining service life of fire damaged concrete structure as the original technology of fire forensic investigation. The details of this research include the prediction of fire damage temperature, post-fire pore analysis, post-fire durability analysis, and evaluation of remaining life of fire damaged structure. ▲Chemical analysis of samples obtained from fire damaged concrete (FT-IR) ▲Chemical analysis of samples obtained from fire damaged concrete (XRD) ▲ Pore structure analysis of samples obtained from fire damaged concrete (MIP) Research Results This research developed the original technology to evaluate the residual durability and predict the remaining life of fire damaged structures. It has deduced the following results up until now. • 1 domestic patent registered • 1 international patent pending • 2 academic papers published in SCI • 2 academic papers published in SCIE • 1 standardization directory to predict the fire damage temperature • 1 academic paper submitted to SCI • Development of software for fire investigation of concrete structures (in progress) • Development of simulation for fire investigation of concrete structures (in progress) ▲Result of X-ray computational tomography test of fire damaged concrete Utilization and Impact This research is expected to lead to the securing of original technology for fire diagnosis and act as key data for repair and reinforcement. It can serve to offer a clear guideline for judging the level of fire damage of concrete structures and will be the driving force for the creation of a new market for fire forensic investigation of structures (F2IS). Moreover, the trained fire diagnosis specialists are expected to play an active role in the domestic market. The technology can be used to evaluate the durability of fire damaged concrete structures and predict the changed lifecycle. In addition, application of this technology can prevent the decline of structures’ lifespan following poor repair/reinforcement and save the early rebuilding cost. As the world’s first original technology, it is expected to be exported to other countries such as Denmark, which is very strong in the area of fire forensic investigation. ▲Fire forensic investigation process to evaluate the remaining service life of fire-damaged concrete Fire Investigation, Research, testing and Education Date2016-11-21 Hit 3584
[2015] Technology to Capture Signs of Tunnel Collapse in Real Time to Prevent Accidents Project Leader: Yoon Yeo-hwan (Senior Research Fellow, kictyyh@kict.re.kr) KICT jointly developed the ground displacement detection system with ETRI and Heung-in E&C to measure the displacement of ground facilities such as tunnels in real time, convert it into the configuration data, and analyze the facility status using the data. This system consists of the sensors to measure the displacements that have a risk of collapse, the wireless communication system to transfer of sensing data. This system monitors the ground conditions continuously and in real time, and the management of status data history. Using the system in tunnel construction can be very effective in securing the construction safety of underground space as the sensors can be installed in the nearest distance immediately after a blasting that has the highest risk of collapse. Research Background and Necessity To prevent construction accidents, the Ministry of Land, Infrastructure and Transport mandates the measurement of displacement of ground facilities during a construction. The measurement is usually performed manually by site personnel on construction sites. However, manual measurement is difficult because of cost and manual work required. And it takes long time to obtain the analysis result since an expert needs to analyze the measurement result. Therefore, the conventional manual measurement has limitations in preventing tunnel accidents in advance. The solution to the problem is automatic measurement. However, the sites are reluctant to adopt automatic measurement because of cost, sensors to be installed, and system management problems. Therefore, there is a need to develop sensors and an analysis system that is cost-effective and meets the field requirements. ▲Configuration of real-time prediction and analysis system of the ground displacement sensor Research Contents This research developed sensors that can automatically measure ground displacement in 3D, a wireless communication system to transfer sensor data to a remote location, and the software to analyze the sensor data (real-time cable sensing system for tunnels). The developed system is more economical and easier to install than the conventional method. As the sensors can be installed within 1m of the dangerous tunnel blast point, it can measure the initial displacement after a blast. Moreover, it can facilitate long-distance wireless communication even in a poor underground environment, automatically analyze the sensor data, and continuously monitor the ground status to detect danger in real time. ▲Tunnel excavation and ground displacement measurement Research Results The following results were produced by the research : • 6 prototypes fabricated • 16 media events including YTN Science and Maeil Business News Korea • 2 domestic patents related to measurement sensor registered • 2 software registrations • 3 research papers published in international journals ▲Installation of displacement measurement system inside tunnel and performance test Utilization and Impact The developed technology combines IT with management of key national facilities such as tunnels, long-span bridges and slopes to break away from the manual monitoring system by implementing on-line and automated facility management systems. In tunnel construction of the past, it was difficult to measure a point near the point of blast because of safety and sensor durability. Moreover, the poor environment inside the tunnel made it difficult to continuously measure points because wireless communication was not available. This technology installs measurement sensors near the point of tunnel blast to continuously measure the initial displacement value immediately after the blast in real time, thus greatly increases construction safety. The system installed during the construction can be used for maintenance and also for monitoring and prediction of structure condition and analysis of construction effect. ▲Ground displacement analysis software ▲Wireless communication repeater (gateway) and sensor node Department of Highway & Transportation Research Date2016-10-27 Hit 910
[2015] Remote Hazardous Gas Detection and Monitoring Technology Project Leader: Cho Nam-wook (Senior Researcher, nwcho@kict.re.kr) The purpose of this research is to develop a chemical disaster monitoring system that can prevent large chemical accidents through remote monitoring and analysis of toxic gas and VOC in real time. The main technical contents of the research include the development of non-dispersive infrared gas sensor modules and the modules used in drones were applied to measure the gas dispersed in the atmosphere. The field applicability was confirmed through the performance test of the prototype, and the various technologies deduced in this research can be applied for proactive monitoring and management systems to prevent hazardous chemical accidents to build a social environment safe from chemical disasters. Research Background and Necessity Although chemical substance are essential elements of industrial processes, their increased use has led to increased occurrence frequency of chemical accidents that cause economic loss as well as increased scope of damages. In Korea, 233 chemical substance leakage accidents occurred between 2010 and 2014. The 2012 hydrofluoric acid gas leakage accident in Gumi resulted in a financial loss of USD 15.4 million and more than 1,600 cases of property damages. Nonetheless, chemical accidents continue to happen. Despite the government’s measures to strengthen management policies, chemical accidents continue to occur because of inadequate supervision and the carelessness of users. As such, there is a need to develop chemical substance accident prevention and response technology and build a disaster management system to improve national competitiveness, proliferate safety culture and remove public anxiety. ▲Development of absorption area database of hazardous gas ▲(Right) 9 toxic gases and 68 lists Research Contents The objective of this study is to develop the NDIR spectrometer technology by applying infrared spectroscopic analysis to immediately detect the materials on site in the case of gaseous substance leakage and the detection technology using a drone with a built-in analysis system. To obtain accurate data related to detected gas, the statistical procedure (PCA) for linearity using the reference gas and avoidance of interference band was used to improve the linearity of data. Moreover, the reflective or transmissive NDIR method was applied as fixed module according to the measured distance. For real-time remote monitoring of the atmosphere, a prototype was manufactured using a drone with a built-in IR sensor and applying the compensation factors of temperature/humidity and distance. The system can monitor and analyze hazardous gas in the atmosphere (space) to prevent major chemical accidents. ▲Prototype of reflective NDIR spectrometer ▲Prototype of transmissive NDIR spectrometer Research Results The first two years of the research focused on fabrication of the product and securing the patent. In the third year, the monitoring system was fabricated as the final step for building key element technology. The following results were deduced : • 1 registered patent related to gas measurement system using a drone and its method • 3 pending patents related to measurement system, measurement method and program recording • 6 media events including the economic dailies and YTN • 6 software programs and prototype fabrication • 1 application of technology at a public institution • 4 research papers published in academic journals and 9 academic presentations ▲Prototype of remote hazardous gas detection module Utilization and Impact The result of this research can be used as reference data for developing hazardous chemical analysis technology and supporting the analysis and provide real-time monitoring original technology to prevent and respond to proliferation of hazardous substance accidents. It can prevent chemical disasters such as leakage of toxic gas by chemical accidents in industrial facilities and infrastructure and dispersion of chemical substances in biochemical warfare and minimize the damage. The system will be ideal for business sites that must have a chemical disaster preventive system, public institutions (Ministry of Public Safety and Security, Korea Gas Safety Corporation, Korea Gas Corporation, etc.) that monitor chemical disasters, and monitored subjects (industrial complexes, chemical handling sites, etc.). ▲Remote hazardous gas detection module mounted on a drone Fire Investigation, Research, testing and Education Date2016-10-13 Hit 2245
[2015] World’s First Microbial Biopolymer based Construction Material for Geotechnical Engineering Practices Project Leader: Chang Il-han (Senior Researcher, ilhanchang@kict.re.kr) The ‘microbial biopolymer-based geotechnical engineering construction material technology’ being developed by KICT is the world’s first attempt of theoretically investigating the characteristics and geotechnical engineering behavior of soils treated by microbial biopolymers generated by microorganisms and developing a new construction material and its utilization method to apply biopolymers in geotechnical construction areas. Currently, high strength biopolymer-soil composites with a compression strength of 25MPa or higher are developed through phased strength improvements. Xanthan gum, Gellan gum and Casein were selected as potential biopolymers to be used as construction material, and the intellectual property rights in Korea and other countries have been secured. The technology is expected to reduce CO2 emission (use of cement) in construction and lead the future ecofriendly geotechnical construction market. Research Background and Necessity Ordinary cement which is the most widely used soil binder in geotechnical constructions, emits massive carbon dioxide (0.95ton CO2 / 1ton cement) that it takes up to 8% of the whole global CO2 emission. Following the Paris Agreement signed in 2015, it is becoming more important to develop materials to replace cement for eco-friendly geotechnical construction in order to meet the mandatory reduction of greenhouse gases. The biopolymer is an eco-friendly biological byproduct generated by microorganisms or bacteria and consumes large amounts of carbon dioxide during production while offering outstanding tensile strength. The study of using biopolymers for geotechnical construction was initiated as a means to drastically improve soil strength with a small amount of resources. ▲Conceptual diagram of microbial biopolymer-based soil strength improvement ▲Micro-scale interaction of biopolymer/soil bonding Research Contents This study investigated the inter-particle bonding mechanism between biopolymers and soils through theoretical and experimental studies on various biopolymers and soil types to develop a new microbial biopolymer-based geotechnical construction material and its site implementation methods. As a result, the optimal biopolymer/soil mixing condition is discovered, while a biopolymer/soil mixture that does not dissolve in the water is developed. Based on the results, an industry-academia-institute collaboration is in progress to develop commercialization technologies such as ecofriendly soil architecture, cement-free soil packaging, eco-friendly slope protection/reinforcement, soil erosion restraining, and ground injection/ mixing. In addition, key technology to prevent desertification using biopolymer is currently under development with support from the National Research Foundation of Korea to present alternative technology to cope with climate change. ▲Applicable areas of biopolymer geotechnical construction material Research Results This study is the world’s first attempt to utilize microbial biopolymers for geotechnical engineering practices. In addition to the academic study of investigating the biopolymer/soil bonding mechanism, the development of commercialized technology that can be applied in geotechnical construction is ongoing. As such, research results have been published in many international journals and intellectual property rights in Korea and other countries were obtained to lead key original technologies. In addition to commercialization, KICT expects royalty income from technology transfer. • Two prototypes (cement-free biopolymer-soil packaging; block/panel prototype) • 8 research papers published in international SCIE • Three domestic patents related to biopolymer construction material and its field application • Two pending international patents related to application in biopolymer geotechnical construction ▲Conceptual diagram of biopolymer/soil in-situ mixing and construction ▲View of biopolymer/soil packing test (Oct. 2015) Utilization and Impact This study is related to the development of new eco-friendly material to reduce or substitute the use of existing soil treatment materials such as cement in geotechnical construction and its application and is expected to lead the next-generation sustainable construction market. The technology can be applied not only in conventional geotechnical construction areas (reinforcement, retaining, soil packaging, etc.) but also in restraining of soil erosion and preventing the expansion of desertification to cope with climate change. As such, it is expected to be applicable in broad overseas markets. Since the biopolymer-based geotechnical construction material can be produced anywhere in the world, if the microorganism, nutrient and culture conditions are right, it can be used as an alternative material in regions (Africa and Southwest Asia) that are short of cement. Adopting the concept of ‘local binder’, the technology is expected to find demand in developing countries. ▲Prototype of biopolymer / soil architectural material (Sep. 2015) ▲Conceptual diagram of biopolymer application in combat desertification Department of Geotechnical Engineering Research Date2016-10-07 Hit 1544
[2015] Smart Water Package Technology to Resolve Water Shortage Project Leader: Oh Hyeon-je (Senior Research Fellow, hjoh@kict.re.kr) The ‘Smart Water Package’ technology is the customized water treatment technology and integrated management technology to proactively solve the problems caused by climate change and imbalanced water supply. This technology interfaces with state-of-the-art IT to flexibly supply water. The water treatment package system modularizes water treatment processes in cartridge forms so that they can be utilized for a diversity of purposes according to usage. The integrated management system can be applied in microgrids in cities for recycling of water, low energy water production, and efficient production, supply and distribution in unit districts. The eventual objective is to develop and commercialize the intelligent water management infrastructure construction technology interfacing IT. Research Background and Necessity Water supply imbalance such as flooding and drought aggravated by climate change has become clearer and is expected to become even worse. The precipitation per capita in Korea (2,591m³ annually) is around 1/8 of the world average, and the river intake rate is 36%, making Korea one of the countries with high stress over water resources. As such, Korea is very vulnerable in water usage during the drought period. Therefore, the development of the ‘Smart Water Package’ technology that is customized to local conditions is needed to optimize the water production and supply efficiency and energy and to overcome the limitation of conventional water management system. Research Contents The main contents of the Smart Water Package technology are described as follows : • Development of component modules of the Smart Water Package system that can proactively cope with water quality change • Development of program for remote operation and integrated management of the Smart Water Package system • Development and commercialization of customized water production technology using multiple water sources • Development and commercialization of IT-based intelligent water integrated management system ▲Integrated management program for the Smart Water Package System ▲Component modules of the Smart WaterPackage System ▲Remote operating program for package system Research Results The detailed element technologies deduced in this research were applied in a test bed to maximize the result, and the following results related to technology transfer and commercialization were deduced. • 25 prototypes fabricated • 28 research papers published in domestic journals and 122 academic presentations • 5 domestic patents registered, 7 domestic designs registered, and 10 SW programs registered • 2 international PCT pending and 1 US patent pending • Technology implementation agreement (May 2014) - 1 company, fixed royalty of USD 26,000 • Technology implementation agreement (Jun. 2015) - 4 companies, fixed royalty of USD 87,000 • Technology implementation agreement (Jan. 2016) - 4 companies, fixed royalty of USD 70,000 and running royalty of 3% sales • 15 MOUs signed in Korea and abroad and 6 international academic conferences held • 8 media reports and 5 media events • KICT test bed operation, etc. Utilization and Impact This research seeks the development and commercialization of a Smart Water Package system that enables saving of water and costs using the bidirectional communication between the suppliers and users. From a technical point of view, the Smart Water Package system adopts a new concept that breaks away from centralized water service systems and can distribute new technologies. Moreover, securing the water package technology and strengthening the national infrastructure competitiveness will develop the water supply system and the integrated management system based on domestic IT and networks. The independent commercialization technology will lead to early leadership and industrialization of the Smart Water Package technology. Securing clean and safe water and eco-friendly alternative water will contribute to the improvement of national competitiveness and citizens’ quality of living and solve the local shortage of water by stably supplying good quality water. ▲Building of Smart Water Package System Operation Center ▲Development of Smart Water Package operating simulator Department of Environmental Research Date2016-09-28 Hit 2160
[2015] Sewage Odor Reduction Technology to Improve Citizens’ Living Environment Project Leader: Song Ho-myeon (Senior Research Fellow, hmsong@kict.re.kr) KICT developed the following technologies to reduce the odor in sewage pipelines. The ‘air injected SOB media system’ uses air supply and SOB media to reduce odor in septic tanks by oxidizing offensive odor substances in the water. The ‘spray odor reduction system’ is applied to underground tunnels and large sewage pipelines. The nonpowered odor reduction technology uses water pressure with a water spray nozzle. The ‘odor map’ predicts the concentration that generates odors using an odor generation prediction equation and modeling and interfaces with GIS to create the map. Research Background and Necessity Korea has adopted the combined sewage system since the late 1970s. As such, the sewage in Korea is structurally vulnerable to odor generation. The septic tanks generally use the anaerobic process, and the offensive odor substances are generated in the water during the process, diffusing and discharging odors as a result. As the citizens’ quality of living has increased, the complaints about sewage odor have doubled in the past 5 years and continue to increase. ▲Air-injected SOB media system ▲Spray odor reduction system Research Contents The key contents of sewage odor reduction technology are described as follows : - Development of air injected SOB media system and spray odor reduction system - Lab tests to compare existing technology with developed technology - Deduction of field applied design factors through pilot testing - Evaluation of field applicability - Commercialization through the technology implementation agreement ▲Odor map Research Results This research developed the air-injected SOB media system, spray odor reduction system, and odor map. The following results were deduced. • 6 patents pending and 2 patents registered • 1 research paper published and 8 academic presentations • 1 Environmental New Technology certificate • 2 technology implementation agreements • 6 test beds built • 13 media events • 5 exhibitions • 1 venture company founded • Urban sewage odor improvement pilot projects (Jongno-gu, Eunpyeonggu and Yeongdeungpo-gu in Seoul) Utilization and Impact The result of this R&D is expected to greatly reduce the complaints caused by sewage odor. Installation and operation on the field as part of commercialization showed that the odor in the water and atmosphere (hydrogen sulfide) is reduced by 80~90% and the survey taken by residents indicated that residents felt that the odor was reduced by 60% or more. The odor reduction will improve the sewage odor problem and improve the living environment of citizens to the level of other developed countries. Moreover, the creation of an odor map is expected to enable identification of odor conditions throughout the region and implement effective odor reduction projects. ▲Field application (septic tank) - Air-injected SOB media system ▲Field application (sewage pipeline) - Spray odor reduction system Department of Environmental Research Date2016-09-28 Hit 2411

첫페이지 이전페이지 1 2 3 4 5 6 7 8 9 10 다음페이지 마지막페이지

TOP

QUICK

QUICK SERVICE

KICT 안내
기업지원
HOT LINK

닫기

283, Goyang-daero, Ilsanseo-gu, Goyang-si, Gyeonggi-do, 10223, Rep. of Korea Tel. 031-910-0114 E-mail. webmaster@kict.re.kr

Copyright (C) 2019, KOREA INSTITUTE of CIVIL ENGINEERING and BUILDING TECHNOLOGY. All Rights Reserved.

링크드인

블로그

유튜브

페이스북

트위터