scholarly journals Fire response of Hybrid Fiber Reinforced Concrete to High Temperature

2017 ◽  
Vol 172 ◽  
pp. 784-790 ◽  
Author(s):  
Josef Novák ◽  
Alena Kohoutková
2011 ◽  
Vol 71-78 ◽  
pp. 1695-1702 ◽  
Author(s):  
Han Li ◽  
Dan Ying Gao

Experiments were carried out to investigate the splitting properties of hybrid fiber reinforced concrete after exposure to elevated temperatures. Based on the experimental observation, the effect of steel fiber dosage, polypropylene (PP) fiber dosage and strength grade of concrete on the residual splitting strength of the concrete after being subjected to high temperature was systematically analyzed. Test data indicated that high temperature caused significant deterioration in the splitting strength of concrete; the addition of PP fiber and steel fiber could all effectively improve the residual splitting properties of concrete; the optimum amount of PP fiber and steel fiber were identified respectively; the degree of strength loss of concrete with different strength grades was very close to each other. A theoretical equation was proposed to predict the residual splitting strength of concrete after being heated to temperatures up to 800°C.


2021 ◽  
Vol 1895 (1) ◽  
pp. 012053
Author(s):  
Hadeel M. Shakir ◽  
Ahmed Farhan Al-Tameemi ◽  
Adel A. Al-Azzawi

2013 ◽  
Vol 327 ◽  
pp. 201-204
Author(s):  
Jin Song Shi ◽  
Bo Yuan ◽  
Da Zhang Wang ◽  
Zhe An Lu

In order to investigate the difference of current toughness index standards for fiber reinforced concrete, two main groups of specimens were made to take bending toughness test with the requirements of corresponded standards, loading methods and loading speeds, which are ASTM C1018 in America, ACI 544 and JSCE G552 in Japan. United with software Origin, the load-deflection curves gathered from bending test was calculated with relative standards. The results show that the calculated toughness index value with ASTM C1018-98 in America is more accurate with three grades but the requested deflection of testing is much longer than others while ACI 544 and JSCE G552 in Japan are quite the contrary.


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