水泥类型对高温下混凝土的机械行为和渗透性的影响
摘要
渣)对加热混凝土的机械和运输性能影响的实验调查。作者研究了火灾期间发生的高温暴露导致的性能变化。高温
暴露会使混凝土的运输和机械性能发生变化,但文献中还没有广泛研究水泥类型的影响。在本文中,作者用两种类
型的水泥制作混凝土。CEMI和CEMIII,使用玄武岩(B)和河床骨料(RB)。在高温暴露于200、400、600、800和
1000℃之后,作者测试了抗压和抗拉强度,以及静态弹性模量和Cembureau渗透率。作者根据静态弹性模量的变化
来评估高温效应对混凝土的破坏和裂缝的发展。试验结果清楚地表明,渗透性随着破坏而增加,而且对于两种类型
的水泥来说,渗透性都遵循一个指数型的公式。
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DOI: http://dx.doi.org/10.12361/2661-3522-04-06-93348
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