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Kafe 바로가기주관연구기관 | 한국건설기술연구원 Korea Institute Of Construction Technology |
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연구책임자 | 허영선 |
보고서유형 | 최종보고서 |
발행국가 | 대한민국 |
언어 | 한국어 |
발행년월 | 2016-08 |
과제시작연도 | 2015 |
주관부처 | 국토교통부 |
사업 관리 기관 | 국토교통과학기술진흥원 |
등록번호 | TRKO201600015646 |
과제고유번호 | 1615008050 |
DB 구축일자 | 2016-12-17 |
키워드 | 내구성,콘크리트,2차거동,공극구조,화재손상Durability,Concrete,Subsequent behavior,Pore structure,Fire damage |
화재손상을 입은 구조물에 대한 화재조사 (Fire forensic investigation)는 국내에서는 그 동안 다루지 않은 생소한 분야에 해당되지만 그 중요성이 크다는 데는 많은 학자들이 의견을 같이하고 있다. 특히, 콘크리트 구조물에 대한 올바른 화재조사 기술은 2차 피해를 막고, 합리적인 보수보강 방법을 제안함으로써, 국민의 안전을 보장하고, 구조물의 잔존수명 회복 등 효율적인 유지관리 측면에서도 반드시 필요한 기술에 해당된다.
고온피해를 입은 콘크리트 구조물은 시멘트 메트릭스를 구성하고 있는 수화물의 화학적 분
화재손상을 입은 구조물에 대한 화재조사 (Fire forensic investigation)는 국내에서는 그 동안 다루지 않은 생소한 분야에 해당되지만 그 중요성이 크다는 데는 많은 학자들이 의견을 같이하고 있다. 특히, 콘크리트 구조물에 대한 올바른 화재조사 기술은 2차 피해를 막고, 합리적인 보수보강 방법을 제안함으로써, 국민의 안전을 보장하고, 구조물의 잔존수명 회복 등 효율적인 유지관리 측면에서도 반드시 필요한 기술에 해당된다.
고온피해를 입은 콘크리트 구조물은 시멘트 메트릭스를 구성하고 있는 수화물의 화학적 분해가 일어나는데, 이러한 영향으로 공극 구조가 무너지고, 탄산화 진행속도가 급격히 빨라짐에 따른 심각한 내구성 저하를 발생시킨다.
콘크리트의 내구성 평가는 이미 오래전부터 많은 학자들에 의해 연구가 진행된 분야이지만, 화재피해를 입은 구조물의 경우는 제한적으로 연구가 수행되었다. 본 연구에서는 이러한 지식의 공백(knowledge gap)을 메우기 위한 것으로 기존의 내구성 평가방법에 화재피해온도 예측 기술을 적용하여 궁극적으로 본 연구의 최종목표를 달성하고자 하였다.
Purpose & Contents
Purpose
It is important to improve the related national regulation, code and standards in line with fire forensic investigation to reduce the extent of national disaster, fire. However, the fire investigation of structure in Korea is very limited. Engineering approach to fir
Purpose & Contents
Purpose
It is important to improve the related national regulation, code and standards in line with fire forensic investigation to reduce the extent of national disaster, fire. However, the fire investigation of structure in Korea is very limited. Engineering approach to fire investigation does not applied to industry. It is believed that this could be the main reason why fire safety technologies have not been contributed to the reduction of the fire disaster. More seriously, even though fire forensic investigation of structure (F2IS) is the key technology in maintenance of building structures by providing appropriate repairing methods, at the moment, there is no practical technology in Korea. Therefore, this project aims to develop the new technology that can predict the damage level of building structures after fire exposure and evaluate their residual service life.
Contents
Contents of this study can be summarized as followings
(1) Properties of physical behavior of concrete’ constituents at fire
· Thermal behavior of cement paste
· Thermal behavior of aggregates
(2) Chemical analysis of cement paste at fire
· XRD, XRF, FT-IR and NMR analysis
· Analyzing the specific temperature of decomposition of hydration products of cement paste
· Applying the standard directory for predicting the fire-damaged temperatures
(3) Properties of pore structure and crack development of cement exposed before and after fire exposure
· MIP analysis for pore structure of cement paste
· X-ray CT scanning for finding the mechanism of crack development
· Applying the standard directory for evaluating the residual service life of building structures after fire exposure
(4) Evaluation of carbonation and residual durability of cement paste after fire exposure
· Measuring carbonation depth of fire-damaged samples
· Applying the standard directory for evaluating the residual service life of building structures
(5) Simulation for the temperature variation in cement paste at fire
· Heat transfer simulation for cement paste at fire
· Validation of the developed technology for predicting the fire-damaged temperature
· Development of fire prediction and evaluation system for fire damaged concrete
Results
(1) Public achievement
· Creating the new area of fire forensic investigation
· Providing key information for repairing the fire-damaged structures
· Improving the quality of human’s life by providing the service of fire forensic investigation
(2) Technical achievement
· Development of the world’s first technology for predicting the fire-damaged temperature of building structures
· Finding the specific temperatures of chemical decomposition of cement paste by NMR analysis, attempted for the first time in the world
(3) Academic achievement
· Publication in international scientific journal
· Good feed back from the member of international fire forum
· Creating a new national academic area of fire investigation
(4) Economical achievement
· Expecting export of technology of F2IS (fire forensic investigation of structure), starting from European countries
· Saving unnecessary additional cost for repair and securing structural safety at the same time by recommending an appropriate method for repair and rehabilitation
· Creating a new business market in the area of fire forensic investigation with professional manpower training program
(5) Other achievement
· Establishing international business collaboration with DBI (Danish institute of fire and security technology) working for around 100 years in the area of fire
· Submitting international joint project with DBI to both National Research Foundation of Korea & Innovation Fund Denmark and planning to submit ‘Eurostar project’
· The area of fire investigation was selected as one of the key agenda in the meeting between vice ministers of Korea and Denmark in May 2016
Expected Contribution
Expected contribution
· Development of a package technology of F2IS (fire forensic investigation of technology) from A to Z
· Creating a new business area of F2IS
· Development of a new certificate for F2IS and training program for professional fire investigators
· Applying the package technology of fire investigation as a key technology to the areas of fire inspection and fire consulting work
Expected effect
· Securing the good quality of human’s life by upgrading the level of fire safety resulted from dramatic reduction of national disaster, fire
· Creating a new business market in European countries by successful international collaboration with DBI
· Inspiring fire investigation-related industries, leading to creation of a new business market in Korea
· Introducing new products of medium-sized enterprises to European market
과제명(ProjectTitle) : | - |
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연구책임자(Manager) : | - |
과제기간(DetailSeriesProject) : | - |
총연구비 (DetailSeriesProject) : | - |
키워드(keyword) : | - |
과제수행기간(LeadAgency) : | - |
연구목표(Goal) : | - |
연구내용(Abstract) : | - |
기대효과(Effect) : | - |
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