Thermal and mechanical properties of fiber reinforced high performance self-consolidating concrete at elevated temperatures
Thermal and mechanical properties of fiber reinforced high performance self-consolidating concrete at elevated temperatures
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DOI：
10.1016/j.cemconres.2011.06.012
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发表时间：
2011-11-01
影响因子：
11.4
通讯作者：
Kodur, Venkatesh
中科院分区：
文献类型：
--
作者：
Khaliq, Wasim;Kodur, Venkatesh
本文研究了温度对自密实混凝土和纤维增强自密实混凝土热学和力学性能的影响。对于热性能，测量比热、热导率和热膨胀，而对于机械性能，在20-800 ℃的温度范围内测量压缩强度、拉伸强度和弹性模量。四个SCC混合，平原SCC，钢，聚丙烯，和混合纤维增强SCC被认为是在测试程序。力学性能测试结果表明，钢纤维的加入提高了自密实混凝土的高温劈拉强度和弹性模量。此外，FRSCC的热膨胀在20-1000摄氏度范围内略高于SCC。从这些测试中产生的数据被用来开发简化的关系表示热性能和力学性能的SCC和FRSCC作为温度的函数。(C)2011爱思唯尔有限公司保留所有权利。
This paper presents the effect of temperature on thermal and mechanical properties of self-consolidating concrete (SCC) and fiber reinforced SCC (FRSCC). For thermal properties specific heat, thermal conductivity, and thermal expansion were measured, whereas for mechanical properties compressive strength, tensile strength and elastic modulus were measured in the temperature range of 20-800 degrees C. Four SCC mixes, plain SCC, steel, polypropylene, and hybrid fiber reinforced SCC were considered in the test program. Data from mechanical property tests show that the presence of steel fibers enhances high temperature splitting tensile strength and elastic modulus of SCC. Also the thermal expansion of FRSCC is slightly higher than that of SCC in 20-1000 degrees C range. Data generated from these tests was utilized to develop simplified relations for expressing thermal and mechanical properties of SCC and FRSCC as a function of temperature. (C) 2011 Elsevier Ltd. All rights reserved.