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[2015] Urban Water-Cycle Management Technology for Low Impact Development
Project Leader: Kim Ree-ho (Senior Research Fellow, rhkim@kict.re.kr) The ‘urban water-cycle management technology’ is the integrated system that considers stormwater quality and quantity management at the source. Although the water permeable blocks are commercialized, there is no clear solution to clogging of pores even in developed countries such as Japan and the US. Since Korea generally builds green areas or gardens in the form of a mound in particular, the soil discharged from the green area accelerates clogging of pores in the water permeable block. This research presented various improving and supplementary measures to overcome the problem and established the foundation to differentiate with solutions from other countries and open the door for exporting. ▲Sidewalk block pavement system with the retention and infiltration capabilities Research Background and Necessity Prevention of disasters related to natural urban water-cycle distortion and building comfortable urban space have become an issue worldwide. In urban areas, water management has expanded its functionality beyond water usage. Therefore, the need of technology for natural urban water-cycle restoration spreads and is backed up by policy measures and the development of Green Infrastructure (GI) and/or Low Impact Development (LID) technologies suitable for domestic environment to restore natural urban water-cycle is urgently needed. Although many element technologies are introduced as LID technology is adopted in Korea, most of them are foreign technologies as they are or with some improvement. However, Korea needs to manage urban nonpoint source pollution caused by dust scattering and yellow dust and to prepare for concentrated torrential rain because of climate changes, and thus the specified development of technology to cope with field requirements is needed. ▲Water permeable hole block solving clogging problem ▲Integration between the water permeable block and the vertical infiltrative greenery belt Research Contents This research improved and integrated the conventional rainfall management technologies such as pavement of water permeable block, penetration gutter, initial rainfall pre-treatment systems and infiltrative rainwater storage tank to develop urban stormwater management technology specific to Korea. The water permeable block features an enhanced surface layer to improve water permeation, prevent clogging and increase performance recovery. Moreover, it is integrated to the vertical infiltrative greenery belt as a countermeasure in case of clogging during public use to reduce runoff. Reflecting the urban characteristics of limited space and many underground utilities, the sidewalk pavement system with the retention and infiltration capabilities was developed as the key technology and it could be applied in a multidimensional format in the area where the greenery and sidewalk are in contact. And the test bed to evaluate and improve the performance of the novel sidewalk pavement system was built in the National GI&LID Demonstration Complex. Research Results This research developed LID element technologies and integrated systems of the element technologies to manage natural water-cycle in urban areas. And its eventual objectives are to improve the performance at the National GI&LID Demonstration Complex and to establish a comprehensive guideline for Korea-specific LID element technologies. The developed technologies were transferred to meet the field requirements, and the income from industrial property rights and technology transfer are described as follows : • 5 field applications of developed technologies in Korea and abroad • Technology transfer of block pavement system to improve natural urban water-cycle (fixed royalty : USD 17,000, running royalty : 2%, DaeilTech) • Technology transfer of water-cycle technology in the greenery and sidewalk (fixed royalty : USD 17,000, running royalty : 2%, Earth Green Korea) • 13 domestic patents registered and 4 patents pending • 12 research articles in international journals and 1 research article published in a Korean journal • MOU for technology transfer signed between the Department of Science and Technology-Philippine and KICT and between Seoul Metropolitan and KICT • 23 education programs for LID professionals and civil servants ▲Sidewalk block pavement technology with the retention and infiltration capabilities tested in the National GI&LID Demonstration Complex Utilization and Impact This research developed the multidimensional urban stormwater management system that integrates with initial rainfall pre-treatment, prevention of clogging the water permeable pavement, secondary infiltration through the side gutter in case of clogging, and infiltrative storage tank to extend the infiltration period. Moreover, it reduced the budget through the vertical infiltrative greenery belt without converting the existing mound greenery to under-mound for the same effect. This novel block pavement system that integrates the element technologies is ideal in the urban areas where it is difficult to find the ground to apply the runoff control technology or enhancement of existing system, and thus it is expected to be very useful in urban development and retrofit projects. The technology will lay the foundation to differentiate between solutions from other countries and open the door for exporting. Moreover, the key technology of this research will lead to value addition and advancement of green technology. ▲Field application through technology transfer
Department of Environmental Research
Date
2016-09-19
Hit
1411
[2015] Eco-friendly Filter for Removal of Particulate Matter and Volatile Materials
Project Leader: Kim Kwang-su (Senior Research Fellow, kskim@kict.re.kr) The deteriorating pollution of the atmosphere, multi-purpose facilities and indoor air is causing an increase in diseases, and its negative impact on citizens’ health has become a social issue. The concentration of particulate matters (PMs) in major tunnels in Seoul has surpassed the atmospheric environment standard, and it becomes even worse during periods of congestion and threatens the health of drivers and passengers using the tunnel. Moreover, problems related to atmospheric pollution such as atopic dermatitis and respiratory diseases caused by dust in the indoor multi-purpose facility and sick house syndrome caused by volatile substances are becoming worse. KICT developed dust removal technology by thin electrodeplates coated with activated carbon to solve the atmospheric problems in tunnels on the road and subway. The technology solves the weakness of conventional electrical precipitators and removes not only dust but also VOC efficiently. An eco-friendly filter of a new concept using traditional Korean paper with inorganic adsorbent-using zeolite is ideal for the purpose and can simultaneously solve the problems of dust, VOCs and odor in indoor air. Research Background and Necessity As part of comprehensive measures to improve the quality of living by 2030, the Korean government has been focusing on creating a comfortable environment by including the improvement of air quality of public facilities and residential environment as one of the technologies to be developed. Atmospheric pollutants that cause health issues such as headaches, pneumonia, rhinitis, atopic dermatitis and respiratory disease are mostly particulate matter that are sized 10μm or less, aerosol, and VOCs such as benzene, toluene and formaldehyde. Since domestic technologies to process the atmospheric pollutants are currently concentrated on factories and specific industries (semiconductor production facilities and intensive care units at hospitals), there is a need to develop precision technology that can be used in indoor residential facilities and multi-purpose facilities. ▲Dust removal system pilot ▲Arrangement of thin electrode-plates coated Porous Korean paper filter test equipment with activated carbon and nonconductors ▲Thin electrode-plates coated with activated carbon after the dust removal test Research Contents The dust removal technology using thin electrode-plates coated with activated carbon can process the dust and VOCs efficiently even at a relatively low voltage through the crossed arrangement of electrodes and nonconductors. It features the equalization of current density with porous activated carbon and maximization of the electrostatic surface by dielectric substances to remove 99% of dust and VOC. The freeze-drying processing using a non-polar solution as a medium was developed to fabricate the activated carbon impregnated filter made of Korean paper that features 90% or higher porosity to maximize filter efficiency. VOCs of different types are removed using the adsorption function of activated carbon, and thus indoor air quality can be greatly purified. In addition, zeolite adsorbent with metal content greatly improves the performance when compared to conventional adsorbents, and adsorbent can be recycled semi-permanently by repeated adsorptionoxidation. ▲Porous Korean paper filter test equipment Research Results This research developed the system to remove dust by using electrodeplates coated with activated carbon to improve the atmospheric condition in spaces such as tunnels and subway stations that face severe pollution, the eco-friendly porous filter made of Korean paper to purify the air in the indoor and outdoor multi-purpose facilities and residential spaces, and the inorganic adsorbent to remove VOC and offensive odor substances in the atmosphere. The performance of the developed technology was verified through lab tests and outdoor pilot tests, and design factors were established. The research generated the following results : • Technology transfer completed (fixed royalty : USD 87,000, running royalty : 1~3%, Sinhaeng Construction) • One international patent registered, one international patent pending, and two domestic patents registered • 3 research papers published in international SCI • 5 research papers published in Korean journals ▲Activated carbon impregnated Korean paper filter (above) ▲SEC image of Korean paper filter before and after dust removal (below) Utilization and Impact This research used eco-friendly materials. This is a simultaneous dust and VOC removal system with increased efficiency and reduced cost. The result of the research can improve the indoor air quality and atmosphere to safely and efficiently protect citizens’ health in modern industrial society and increase the quality of living and the future value of land. Advancement of road construction technology enabled more tunnels and underground roads to be constructed worldwide, and polluted spaces are increasing with dust and VOC as new construction materials are developed and new constructions occur. On the other hand, there is relatively little effort to improve air quality, and thus this technology is expected to occupy relative superiority in international competition. Its application can also be extended to improve outdoor air quality by interfacing with HVAC at large-scale industrial facilities or multi-purpose facilities. ▲Comparison of Fe-ZSM-5 composed with the conventional method and the newly developed method
Department of Environmental Research
Date
2016-08-14
Hit
1212
[2015] Jeju Island Specific Integrated Surface Water – Groundwater Hydrological Analysis Technique
Project Leader: Kim Nam-won (Senior Research Fellow, nwkim@kict.re.kr) The research developed the Jeju Island specific hydrologic analysis technique which integrates the runoff from rainfall, evapotranspiration, land use, infiltration characteristics of soil, baseflow, and groundwater flow needed for comprehensive water circulation analysis for Jeju Island. The technology enables accurate hydrologic component analysis and improves the capability to manage the groundwater resource utilizing the groundwater recharge rate analysis and evaluation. The integrated Jeju Island water resource information system enabled the development of integrated irrigation and flood control technology and building of a rational water resource preservation system through stream flow characteristics and surface watergroundwater linked analysis as well as Jeju Island specific hydrologic component analysis. ▲Hydrologic characteristics and hydrologic component analysis on Jeju Island Research Background and Necessity As Jeju Island is an area with heavy precipitation, it has different hydrologic characteristics such as river properties of steep slopes and short flow paths and hydrogeological properties of high permeability that are different from inland areas. Most rivers on Jeju Island are dry rivers in which water flows only when there is a specific level or more of rainfall. Because of such river characteristics of Jeju Island, it is difficult to calculate hydrologic analysis with the conventionally used basin hydrologic analysis method. To build the foundation for efficient water resource management on Jeju Island, it is more rational to integrate surface water and groundwater for analysis instead of the separated approach of securing water resource and taking the approach of flood control measures of river flow rate. Moreover, the runoff characteristics on Jeju Island can be accurately analyzed only when it is interfaced with the change of groundwater. Therefore, there is the need to accurately present the correlation of runoff characteristics and evapotranspiration, groundwater recharge rate, and ground water discharge. ▲Schematic diagram of developed technology ▲Restoration of ungauged rainfall data in areas including Hallasan Mountain Research Contents The objective of this research was to build the foundation for water resource management on Jeju Island by methodically analyzing the water circulation system through the development and application of surface water-groundwater integrated hydrologic analysis on Jeju Island. The main contents of this research are described as follows : • Quantification of hydrologic components (rainfall, evapotranspiration, runoff, snowmelt, etc.) • Development of an integrated surface water-groundwater analysis model for Jeju Island • Development and application of Jeju Island specific ground recharge rate analysis method • Practical application of Jeju Island specific integrated hydrologic analysis technology ▲Improvement of runoff structure in Jeju basin Research Results This research developed the Jeju Island-specific integrated hydrologic component analysis model to analyze surface water and groundwater behaviors simultaneously, accurately analyze unique hydrologic characteristics of Jeju Island and develop the optimal groundwater recharge rate analysis method for Jeju Island. The following outcomes were generated by the research : • A technique to restore rainfall data for the period of ungaugedra infall • An efficient calculation method of actual evapotranspiration • Method of calculating groundwater recharge rate reflecting the hydrologic characteristics on Jeju Island • Method of analyzing snowmelt characteristics in Hallasan Mountain • Determination and localization of recharge delay time for each altitude in the Jeju region • E stimation of specific yield and permeability using water levelfl uctuation model • Change and evaluation of groundwater level according to the groundwater development ■ Quantitative result • 2 research papers published in SCI journals and 20 research papers published in KCI journals • 5 software registrations • 1 policy proposal to Jeju Water Resources Department • 6 cases studies in real watersheds ▲Calculation of total hydrologic quantity using the estimation of ungauged rainfall data ▲Result of application of surface water-groundwater integrated hydrologic model Utilization and Impact This study developed the integrated irrigation and flood control technology and built a rational water resource preservation system to efficiently use water resources and prevent flooding on Jeju Island. The recharge rate used for evaluation when developing groundwater on Jeju Island presented only the annual average recharge rate without considering local and geological characteristics. However, the daily distributed recharge data of this research can be utilized in various policy studies such as setting the reference water level and warning/alarm of groundwater level in the Jeju region. Moreover, the cost of survey and analysis for estimating possible sustainable development of groundwater and establishing long-term management plan of water resources on Jeju Island is expected to reduce, since the water budget analysis and spatial recharge rate can both be utilized. ▲Investigation of space-time distribution of groundwater recharge rate on Jeju Island
Department of Hydro Science and Engineering Research
Date
2016-07-26
Hit
1342
[2015] The World’s First Glass Fiber Reinforced Asphalt Mixture
Project Leader: Yoo, Pyeong Jun (Research Fellow, pjyoo@kict.re.kr) “Glass fiber reinforced asphalt mixture” is a technology developed for the first time in the world by Korea Institute of Civil Engineering and Building Technology as an asphalt road packaging material that revolutionarily improves the durability of the existing asphalt road packaging mixtures. The durability of the existing asphalt mixtures reaches approximately 60% of the planned life cycle. Therefore, a significant amount of maintenance and repair budget is introduced due to the early damage of the road packaging. Based on the aforementioned information, a glass fiber reinforced material that could revolutionarily improve the common life cycle of the existing asphalt road packaging was developed without using an additional high-cost polymer reforming asphalt. Through this technology, the common life cycle of the existing asphalt road packaging can be increased by at least 1.5 times. Research Contents With respect to developing a new glass fiber reinforcing road (asphalt) packaging material, which revolutionarily increases the durability by using glass fiber and waste powder that are generated during the production of the glass fiber, there is a need to provide the granules in corrugated form to allow the industrial waste of the glass fiber powder to mix well with the asphalt. In order to maximize the mixing efficiency during production and the reinforcement performance of the mixture, two types of reinforcing materials of glass fiber coated with plastic resin and glass fiber powder granules produced in corrugated form are being developed. Furthermore, this research aims to develop a long-life asphalt mixture based on the increased durability of the road (asphalt) packaging material, which allows an enhanced effect of interlocking the reinforcing material and the corrugated material, and tension stiffness through a research on the optimum mixture proportion between asphalt and corrugation, and the optimum length of the glass fiber reinforcing corrugation and plastic coating glass fiber. Utilization and Impact This research development can reduce the thickness of the road packaging surface, as well as the cost of construction and maintenance, by minimizing the frequency of maintenance through an enhanced durability of the standard asphalt road packaging. Furthermore, the effect of resource recycling can be expected by using plastic resin-impregnated glass fiber powder in corrugated form to replace the natural corrugated stone dust filler. Since this technology achieves the effect of verifying increased performance, which corresponds to that of the existing high-cost polymer reformed asphalt, and it is a new technology that has not been attempted in relation to the reinforced asphalt mixture by using glass fiber in Korea or overseas, it is expected that the technology will lead in positioning itself as a comparatively superior technology in terms of international competitiveness in the high-performance asphalt mixture market. ▲Plastic-coated glass fiber reinforcing material ▲Plastic-coated corrugated glass fiber reinforcing material ▲Result of an Interior Acceleration Test (60-degree needle, load of 20,000 times): Less than 4-mm deformation, very satisfactory ▲Experimental Construction on Highway #38 (satisfactory state after concurrent use for 1.4 years) ▲Experimental Construction on Gyungbu Highway (satisfactory state after concurrent use for 0.4 years)
Department of Highway & Transportation Research
Date
2016-07-13
Hit
4062
[2015] The World’s Best Technology for SUPER Concrete Material and Structural Application
Project Leader: Kim, Byung Suk (Senior Research Fellow, bskim@kict.re.kr) The SUPER Concrete material and structural application is a SUPER Structure technology that uses a customized SUPER Concrete, which allows factory production and site placement with a compression strength of 80-180 MPa. It also has low-cost, long-life, and high-quality properties, as compared to the existing technologies. This technology relates to Ultra-High Performance Concrete (UHPC), and the Korea Institute of Civil Engineering and Building Technology is a global leader for using such technology. When an UHPC is applied to a structure, the degree of freedom of the structural design can be increased by reducing the total weight, as a result of minimizing the reinforced materials, such as iron bars, and slimming the cross section. Furthermore, a low-cost, long-life, and high-quality structure with 10-20% reduced construction and maintenance cost, as well as 50-100% enhanced durability and life, can be created. It is expected that the application of the technology on the bridge to Legoland in Chuncheon that is currently under construction, the Hawkeye UHPC Bridge in Iowa in the USA, and the bridge on the Yangon-Mandalay highway in Myanmar will directly contribute to obtaining orders of the bridge construction overseas. Research Contents This study aims to develop an 80-180 MPa-level customized SUPER Concrete manufacturing technology, and material model and guidelines, develop the planning and verification of the guidelines for the SUPER Concrete structure performance, and develop a low-cost, long-life, and high-quality structure by using SUPER Concrete. The applicable structures include the upper structure of bridges, wind power towers, floating structures, and architectural structure elements. The development of materials, preparation of design standards, and development of SUPER Concrete-applied structures are simultaneously being conducted, and related technologies are being applied in domestic and foreign sites for the initial practice of completed technologies. Additional applications are being initiated. Moreover, efforts for the enactment of domestic and foreign design standards are being made for the continued leading of related technologies in the world. - Development of the World’s Highest Level Materials and Structure Technologies ● SUPER Concrete Prototype (SC80, SC120f, SC150f, SC180f) mixture: SC180f, etc. are applied on site ● Preparation of SC120f, SC150f, SC180f structure design guidelines: Applicable by standard design companies and construction companies ● Security of economic efficiency of SUPER Concrete-applied structures: Up to 16% reduction of construction cost and approximately 10% reduction of the total construction cost upon application to a 200-600 m level bridge - Site Application and Technology Transfer ● Commencement of construction of the bridge leading to Legoland in Chuncheon, Gangwon-do (July 2015): The world’s first UHPC road bridge ● Construction of Hawkeye UHPC Bridge in Iowa, USA (October 2015): The first bridge constructed in the USA with Korean technology ● Construction of a bridge on the Yangon-Mandalay bridge in Myanmar (October 2015) ● Technology transfer (330 million Won as a fixed rate, 1% regular technology fee) ● 20 media protection on US’ NBC TV/Korean Yeonhap News, etc. Utilization and Impact A foothold for the advancement of technologies into the overseas markets, such as the US and Southeast Asia, was obtained by constructing bridges that are applying this technology in domestic and foreign sites. Therefore, it is predicted that a new driving force for growth that is attracting the order of constructions of standard bridges and long-span bridges in overseas countries will be created. Furthermore, it is expected that the UHPC technology for achieving high durability and slimming of the cross section will receive the limelight as a low-cost carbon releasing technology. In addition, the development of planning and engineering technology related to extra-high performance concrete will enable the reduction of national budget on SOC facilities, as well as the obtainment of sound profit, based on technological superiority in the world’s construction market. ▲ UHPC Materials ▲Cable-stayed bridge leading to Legoland in Chuncheon, Gangwon-do ▲A bridge on the Yangon-to-Mandalay highway in Myanmar ▲Hawkeye UHPC Bridge in Iowa, USA
Department of Structural Engineering Research
Date
2016-07-13
Hit
5063
[2015] Convergence Technology for BIM/GIS-based Construction Space Information
Project Leader: Choi Hyun-sang (Research Fellow, hyunsang@kict.re.kr) KICT has developed a new-concept platform that converges Building Information Modeling (BIM) including 3D design information and Geographic Information System (GIS) utilized in civil engineering, construction fields. BIM/GIS platform supports developing application technologies in construction fields based on the utilization of convergence technology and international standards for road facilities. BIM/GIS platform will enable the use of precise 3D design information (previously utilized only in the design process) in the maintenance and management stage to reinforce the function of combined control in fields such as ‘Building Energy Management System (BEMS),’ ‘Intelligent Building Management System (IBS)’ and ‘Underground Precise 3D Lifeline (water and sewage / electricity and communications) Management System.’ It can also be utilized as a system to manage industrial complexes and plant facilities located in large areas or the operational management of university campuses and large-sized apartment complexes. In addition, it can be utilized as ‘a smart city management platform.’ ▲BIM/GIS platform prototype Research Background and Necessity The global construction market has recently been transitioning to 3D design. The demand for BIM (Building Information Modeling) and cutting-edge facility management system (BEMS, IBS, etc.) using it has been increasing in the market. However, the domestic technology level has remained in simple design software utilization until now. There is the need to improve domestic construction software technology and to secure the technology to lead international standardization in order to increase the domestic share of the global construction market which has been expanding particularly in the Middle East region and to break away from dependency on foreign technology. KICT is focusing on the development of ‘BIM/GIS platform’ as it is the technology area in which Korea is strong and conducting studies to establish Korean technologies as BIM international standard (road facilities). ▲Actual application of a facility management system at King Sejong Station at the South Pole Research Contents The research established the ground for the introduction of BIM such as BIM/GIS platform/operating know-how/standard and verification system for integrated management of SOC facilities in a country or city and is developing the policy and the scheme as well as the BIM/GIS platformbased application systems. • Development of BIM/GIS platform-based construction space integrated information operation technology • Development of BIM/GIS interoperability platform which includes Open API, Protocol • Development of infrastructure BIM/GIS information model standard and verification technology • Development of BIM/GIS platform-based urban lifeline management technology ▲Development of infrastructure BIM international standard Research Results This study utilized information of BIM and GIS. We applied development technology on-site and conducted commercialization through technology transfers. Achievements include academic results such as the publication of international SCI papers, industrial patents and technology transfers. • 3 transfers of BIM/GIS interoperation platform technology (royalties : USD 200,000) completed • ISO TC211 NWIP (New Work Item Proposal) and participation in BSI (Building Smart International) WG • Field application (KICT facility management system, Infrastructure BIM applied in Okdong-Nongso section of Route 7, Water Service Business Division, etc.) • Actual application of the construction business for the management system for sites (regions) and facilities at the Polar Research Center/King Sejong Station at the South Pole • 8 enactments of government technical standards • 46 Korean registered research papers and 6 SCI / SCIE research papers • 10 Korean patents and 1 international patent (USA), 35 software programs registered, and 60 media reports Utilization and Impact Research achievements have enabled the utilization of building information (BIM) and spatial information (GIS) on one integrated platform. Results will help realize a ‘smart city’ previously only envisioned in movies or games (such as SIMCITY). Small and medium-sized companies participating in this study have expanded actual business fields through a technology verification process that has helped establish ‘a facility management system for the King Sejong Station located at the South Pole’ operated by the Polar Research Center based on the BIM/GIS platform. Further research will expand application opportunities into various areas for large-sized disaster response systems for large-sized building complexes, combined management of underground facilities and structures (believed to cause urban sinkholes), and an energy management system for skyscrapers and smart cities. Progress will help domestic companies forgo the use of foreign technology and facilitate an active expansion into foreign construction markets. ▲ Commercial application of BIM/GIS platform
Department of Future&Smart Construction Research
Date
2016-05-26
Hit
1160
[2015] Participation in international joint research (Horizon 2020) for field demonstration of geothermal power generation using original X-ray CT-based analysis technology
Project Leader: Kim Kwang-yeom (Research Fellow, kimky@kict.re.kr) KICT was invited to be a research partner for ‘investigation of geothermal reservoir characteristics’ by the Helmholtz Centre Potsdam GFZ in Germany, the global leading research institute in deep geothermal development. KICT became the first Korean research institute to undertake an EU research project (Horizon 2020) with about USD 28.7 million budget. Horizon 2020 is the eighth stage of the EU R&D Framework Program and is also the largest international joint research program with a budget of 80 billion EU dollor from 2014 to 2020. The main objective of the project KICT involved is to secure key technologies and to verify them for commercialization of an enhanced geothermal system (EGS), a currently worldwide hot issue. Introduction of EGS As the development of new and renewable energy has become an urgent issue due to climate change and energy resource depletion, geothermal energy is becoming more important as a source of clean energy. Unlike other new and renewable energies, the deep geothermal energy is the only clean energy source that can collect sustainable energy very little constrained by external conditions such as time, space and weather. EGS is particularly a key issue worldwide, and there are active technology developments and investments to efficiently increase the economic factors and energy collection. ▲Conceptual diagram of EGS Research Background and Necessity KICT was invited to the Horizon 2020 project as the result of its participation in ‘geothermal power generation demonstration project’ and an ongoing EGS project in Pohang. The project has attracted worldwide attention because it involves Asia’s first construction of an EGS power plant. EGS power generation is the method of producing electricity using thermal energy stored 4~5km underground. Water is used to transport underground thermal energy to the ground, and an artificial reservoir should be created to enable water circulation. The reservoir creation is the key technology of geothermal power generation. KICT has been developed CT image processing algorithms to numerically analyze characteristics of materials especially construction materials based on an X-ray CT system. KICT recently developed a statistical algorithm that can investigate characteristics of microstructures that are not visible on CT images. This technology provides KICT the chance of invitation by GFZ to join the collaborative study on EGS development technologies. Using leading know-how and industrial X-ray CT based analysis, KICT plans to investigate the behavior of artificial reservoir generation, which is a key technology for EGS development. ▲X-ray CT system in KICT to be applied for geothermal study Utilization and Impact KICT is the first Korean government-funded research institute to be invited to the Horizon 2020 project, and the invitation is a result of KICT’s strong push to grow into a world-class institute (WCI) through international cooperation. KICT has been actively cooperating with GFZ of the Helmholtz Group in German which served as the coordinator of Horizon 2020 DESTRESS project. As a result, KICT was invited to participate in the DESTRESS project and to perform hydraulic stimulation experiments and analysis using X-ray CT. Participation in the Horizon 2020 project attended by major global institutes in geothermal power generation is an opportunity for KICT to apply its unique world-class technology in EGS sites in Korea and Europe. Moreover, the formation of a key international network is expected to increase the status of KICT in Korea and to establish the grounds for continuing international cooperation in the future. ▲Analysis of hydraulic fractures using X-ray CT
Department of Geotechnical Engineering Research
Date
2016-03-01
Hit
1283
[2015] World’s First SUPER Concrete Material and Structural Technology
Project Leader: Kim Byung-suk (Senior Research Fellow, bskim@kict.re.kr) The ‘SUPER Concrete material and structural technology’ consists of performance-specific concrete (SUPER Concrete) with a compression strength of 80~180MPa and structural technology utilizing it. The material features lower cost, longer life and higher quality compared to existing technologies. This technology is related to ultra-high performance concrete technology in which KICT has global leadership. Applying the SUPER Concrete to a structure can result in reduced use of reinforcing material such as rebar and reduced weight with slimmer cross-section, granting the engineer more flexibility in designing the structures. The technology can help reduce the construction/maintenance cost by 10~20% and construct low-cost, long-life and high-quality structures with 50~100% higher durability. In addition to the ‘Entrance Cable-stayed Bridge to Legoland’ being constructed in Chuncheon, Gangwon-do, the already completed ‘Hawkeye UHPC Bridge’ in Iowa, US and the bridge on Yangon-Mandalay Highway in Myanmar will act as good references for obtaining orders of overseas bridge construction projects. Research Background and Necessity The construction industry has recently faced many difficulties as the domestic construction business is in prolonged stagnation. Although the domestic construction industry is pushing hard to secure orders of overseas construction projects, it is facing difficulty because it is relatively less competitive in high value added areas such as design, engineering and consulting. To overcome the problem, original technologies with cost competitiveness are needed. The ultra-high performance concrete is recognized as the next-generation new construction material in the advanced countries such as France, US, Japan and Germany, and many R&D programs on the material are ongoing. The concrete structure is evolving into an economic structure with innovative design utilizing ultra-high performance concrete. As KICT is currently leading the ultra-high performance concrete technology, it is essential to attain and lead the world’s best level of technology and early commercialization to pioneer the global construction market. ▲(U) HPC Material ▲Structural Design Guideline for SUPER Concrete Research Contents The objective of this study is to ‘develop the 80~180MPa class SUPER Concrete manufacturing technology and material model/guideline’, ‘verify the SUPER Concrete structural performance and develop the design guidelines’, and ‘develop a low-cost, long-life and high-quality structure utilizing SUPER Concrete’. Applicable structures include the bridge superstructure, wind tower, floating structure, and architecture structural element. KICT is currently developing materials, design criteria and structures utilizing SUPER Concrete. It has been applied in domestic sites for early commercialization of developed technology and additional applications are being planned. Moreover, KICT is seeking to enact the design criteria worldwide as a means to continue to lead related technology. ▲‘Entrance Cable-stayed Bridge to Legoland’ in Chuncheon, Gangwon-do Research Results The objective of this study is to develop the SUPER Concrete material and structural technology and to actually apply it to construction sites. The test bed bridges were constructed in the US and Myanmar, and the technology is being applied in the construction of an entry bridge to Legoland in Chuncheon, Gangwon-do. Moreover, the technology was transferred to help a domestic enterprise find a new source of revenue. ■ Development of the World’s Best Material and Structural Technology • Mixing of SUPER Concrete prototypes (SC80, SC120f, SC150f and SC180f) completed : SC180f applied in the field • Generation of structure design guideline for SC120f, SC150f and SC180f : To be used by the engineers and constructors • Secured cost effectiveness of structures utilizing SUPER Concrete : Up to 16% reduction of construction cost of superstructure of 200~600m class cable-stayed bridge and around 10% reduction of total construction cost ■ Field Application and Technology Transfer • Construction of ‘Entry bridge to Legoland’ in Chuncheon, Gangwon-do (Jul. 2015): World’s first cable-stayed bridge on ultra-high performance concrete road • Construction of ‘Hawkeye UHPC Bridge’ in Iowa, US (Oct. 2015) : First bridge constructed by a Korean enterprise in the US • Construction of a bridge on Yangon ~ Mandalay Highway in Myanmar (Oct. 2015) • Technology transfer (fixed royalties : USD 287,000, royalties : 1%) • More than 20 media events including NBC TV in the US and Yonhapnews in Korea ▲Bridge on Yangon ~ Mandalay Highway in Myanmar Utilization and Impact Constructing the bridges by applying this technology lays the foundation to enter overseas markets such as the US and Southeast Asia. The technology is expected to create a new growth engine that leads to winning orders of construction of long-span bridges and conventional bridges overseas. The ultra-high performance concrete technology that can make the cross-section slimmer and the concrete more durable is expected to be highlighted as carbon emission reduction technology as well. Moreover, development of design engineering technology related to ultrahigh performance concrete is expected to lead to sound profitability based on technical superiority in the global construction market and reduction of national budget on SOC facilities. ▲'Hawkeye Bridge’ in Iowa, US
Department of Structural Engineering Research
Date
2016-02-17
Hit
1791
[2015] World’s First Heads Up Display System for Public Transportation
Project Leader: Kang Weon-eui (Senior Research Fellow, yikang@kict.re.kr) ‘Heads Up Display (HUD) for public transportation’ (technology that KICT has developed for the first time in the world) is a safe-driving support system that helps drivers confirm road conditions and service information without distractions. Current HUD systems for passenger vehicles have a display angle of 45°, but new KICT technology enables the display of information on nearly vertical glass surfaces. Various information can be expressed simultaneously on a split screen. This technology allows drivers to maintain situational awareness and reduce traffic accidents caused by driver error. Research Background and Necessity Traffic accidents are the greatest social problem in the road traffic sector and many studies have been conducted to reduce traffic accidents and associated costs. The operation of a bus requires a driver to process information from multiple devices when driving; consequently, bus accidents are usually caused by divided attention and the failure to observe changes in traffic flow. Reduction in public transportation accidents is a significant opportunity to prevent human casualties. ▲Public Transportation HUD Prototype II Research Contents A HUD displays road and service information on the windshield and enables drivers to process traffic information while maintaining situational awareness that helps reduce traffic accidents. This study developed the HUD for public transportation to help the bus drivers recognize the information needed for easy navigation without distraction. Screens were developed (based on existing private vehicle HUD technology by KICT) to split the screen and display information pertinent to the needs of public transportation. This technology can display information on regular glass as well as HUD-capable glass and can display information on vertical surfaces (or the sloped windshield of a car). Additional public transportation HUD display and operation strategies were established to facilitate the commercialization of technology through a HUD technology transfer. ▲Display on Regular Glass ▲ Split Display Research Results This research developed additional technologies for public transportation safety that utilized existing private vehicle HUD technology. Royalties from industrial patents and technology transfers consist of : • 5 public transportation HUD prototypes • Technology transfer of HUD completed (fixed royalties : USD 158,000, royalties : 2%, HLB Co., Ltd.) • 21 media relation events (such as TV interviews on KBS or YTN) • 4 Korean patents related to HUD technologies • 9 research papers published in Korean journals and 6 research papers in international journals ▲Design of Public Transportation HUD Display Utilization and Impact Research and development will reduce accident costs by improving public transportation safety. We can expect increased public transportation use due to improved efficiency that will have the added benefit of lower traffic congestion costs. Korea will be a global market leader in public transportation HUD-related technology due to its first user position in the development of this technology. New technology from this public transportation research can be utilized in various fields such as medical, military, exhibitions, and advertisements. ▲Public Transportation HUD Prototype IV ▲Technology Transfer of Commercial HUD Product for Passenger Vehicles
Department of Highway & Transportation Research
Date
2016-01-07
Hit
1262
[2014] Electrical Fire Prevention Technology and Post-Fire Form-Preserving Technology
Project Leader : Cho Nam-wook (Senior Researcher, nwcho@kict.re.kr) Electricity is the primary energy source for all societies. High electricity safety standards are needed for generation, transmission, transformation, and distribution. Fires in electrical trenches cause significant damage to property, telecommunication facilities, and utility tunnels. There is also high possibility of secondary damage from large scale blackouts that cause serious social and economic interruptions. Research Results Materials used in fire retardant joint methods and fire retardant cables derive performance from fire retardant performance materials (cone calorimeter and gas damage experiment) that maintain performance under Oxygen Index Tests (73.9). The application of form-preserving techniques after electrical fires is shown to be effective. Technology advancements and additional research has progressed through technology transfers and an MOU with KEPCO. • Electrical fire prevention technology transfers has been completed (fixed royalty USD 209 thousand, running royalty 2.5%, Kwang Woon Technology) • Concluded new technology MOU related to electrical fire prevention (KICT, KEPCO, and Kwang Woon Technology) • Performed example construction of KEPCO electrical trench (KEPCO, Chungbuk) • 2 Korean patents Utilization and Impact Fire burns, creates toxic gases and spreads near fuel sources that result in death and property damage. Electrical fires (often caused from cable joint points) result in residual damage. Electrical fires, caused from cable joint and damage occur frequently. Fires in national infrastructure (like electrical trenches) can result in secondary damage with serious implications. The source idea of this technology is that a strong flame-blocking layer can prevent electrical fires. This technology involved a MOU with KEPCO, Kwang Woon Technology and KICT to develop electrical fire prevention technology. Ongoing research will help develop safety technology and fire prevention applications. ▲Fire experiment for cable ▲Preserving the original cable condition after fire experiments
Fire Investigation, Research, testing and Education
Date
2015-06-01
Hit
6123
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