Study on the Fire Resistance of Concrete with Chemical Admixture
碩士 === 國立臺灣科技大學 === 營建工程技術學系 === 82 === This study mainly investigates the influence of chemical admixture on the fire resistance of concrete . The type of admixture used are common in engineering field including type A,C,D,F and G. T...
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ndltd-TW-082NTUST5120632016-02-08T04:06:26Z http://ndltd.ncl.edu.tw/handle/20730070192355525696 Study on the Fire Resistance of Concrete with Chemical Admixture 化學摻料對混凝土耐火性能影響之探討 Chen-Nan Shen 沈政南 碩士 國立臺灣科技大學 營建工程技術學系 82 This study mainly investigates the influence of chemical admixture on the fire resistance of concrete . The type of admixture used are common in engineering field including type A,C,D,F and G. The specimens were made for macro/micro and mechanical property test. An electric furnace was used to simulate a high temperature environment. All the test results were compared with those of pure concrete(no chemical admixture) to assess the influence of chemical admixture on the fire resistance of concrete. This research also investigates the mechanism of fire resistance from the inserting of chemical admixture into the cement paste, mortar and concrete. The results show that chemical admixture except type A and type C has positive effect for the fire resistance on concrete, especially by adding superplasticizer(ie.type F) . According to XRD and SEM , superplasticizer can refine cement paste and reduce voids. Ultrasonic tests also prove that chemical admixture can improve the interfaces of aggregate in concrete. The residual strength reduction of concrete with chemiical admixture has been found slighter. The out-look is almost the same as that concrete with no chemical admixture. Der-HSIEN Shen 沈得縣 1994 學位論文 ; thesis 189 zh-TW |
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碩士 === 國立臺灣科技大學 === 營建工程技術學系 === 82 === This study mainly investigates the influence of
chemical admixture on the fire resistance of concrete .
The type of admixture used are common in engineering field
including type A,C,D,F and G. The specimens were made
for macro/micro and mechanical property test. An electric
furnace was used to simulate a high temperature
environment. All the test results were compared with those of
pure concrete(no chemical admixture) to assess the
influence of chemical admixture on the fire resistance
of concrete. This research also investigates the
mechanism of fire resistance from the inserting of
chemical admixture into the cement paste, mortar and concrete.
The results show that chemical admixture except type A
and type C has positive effect for the fire resistance on
concrete, especially by adding superplasticizer(ie.type F) .
According to XRD and SEM , superplasticizer can refine
cement paste and reduce voids. Ultrasonic tests also prove
that chemical admixture can improve the interfaces of
aggregate in concrete. The residual strength reduction of
concrete with chemiical admixture has been found slighter.
The out-look is almost the same as that concrete with no
chemical admixture.
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author2 |
Der-HSIEN Shen |
author_facet |
Der-HSIEN Shen Chen-Nan Shen 沈政南 |
author |
Chen-Nan Shen 沈政南 |
spellingShingle |
Chen-Nan Shen 沈政南 Study on the Fire Resistance of Concrete with Chemical Admixture |
author_sort |
Chen-Nan Shen |
title |
Study on the Fire Resistance of Concrete with Chemical Admixture |
title_short |
Study on the Fire Resistance of Concrete with Chemical Admixture |
title_full |
Study on the Fire Resistance of Concrete with Chemical Admixture |
title_fullStr |
Study on the Fire Resistance of Concrete with Chemical Admixture |
title_full_unstemmed |
Study on the Fire Resistance of Concrete with Chemical Admixture |
title_sort |
study on the fire resistance of concrete with chemical admixture |
publishDate |
1994 |
url |
http://ndltd.ncl.edu.tw/handle/20730070192355525696 |
work_keys_str_mv |
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