High-Strength Self-Compacting Concrete Exposed to Fire Test
High-Strength Self-Compacting Concrete Exposed to Fire Test
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DOI：
10.1061/(asce)0899-1561(2006)18:6(754
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发表时间：
2006-12
影响因子：
3.2
通讯作者：
A. Noumowé;Hélène Carré;A. Daoud;H. Toutanji
中科院分区：
文献类型：
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作者：
A. Noumowé;Hélène Carré;A. Daoud;H. Toutanji
本文介绍了常规振捣高强混凝土和自密实高强混凝土的高温性能试验结果。混凝土圆柱形试样和棱柱形试样经受0.5° Cscinmin的低加热速率（高达400°C）和根据国际标准组织834火灾曲线的高加热速率（高达600°C）。试验结果表明，自密实高强混凝土的剩余力学性能与普通高强混凝土的剩余力学性能相当。自密实高强混凝土的剥落风险大于普通高强混凝土。与常规振捣高强混凝土相比，聚丙烯纤维的掺入提高了自密实高强混凝土的热稳定性。在试验混凝土试件中加入聚丙烯纤维改善了温度梯度（从而产生温度应力）。
Results are presented from experimental work on the high-temperature behavior of conventional vibrated high-strength concrete and self-compacting high-strength concrete. Concrete cylindrical specimens and prismatic specimens were subjected to a low heating rate of 0.5°C∕min (up to 400°C ) and a high heating rate according to International Standard Organization 834 fire curve (up to 600°C ). The experimental results show that the residual mechanical properties in reference to initial mechanical properties of self-compacting high-strength concretes were similar to that of conventional high-strength concrete. The risk of spalling for self-compacting high-strength concrete was greater than that of conventional high-strength concrete. As for the conventional vibrated high-strength concrete, the use of polypropylene fiber improved the thermal stability of self-compacting high-strength concrete. Adding polypropylene fiber modified thermal gradient (in consequence thermal stresses) in the tested concrete specimen...