【摘要】 在现有混凝土弹性模量测试方法的基础上提出了测试混凝土试件受压变形的新方法,试验表明了该方法的可行性。并采用该方法对粉煤灰混凝土的弹性模量进行了测试,考察了不同等级的粉煤灰以不同的掺量混合掺入混凝土中对弹性模量的影响,并初步探讨其影响机理。同时采用F检验和T法对试验结果进行显著性分析。更多还原

【Abstract】 On the base of existing methods to measure elastic modulus of concrete,a new one to measure compressive strain of concrete is provided in this paper,and its feasibility is testified through a series of experiments.By this method the elastic modulus of concrete containing fly ash is measured.The effect of fly ash with different grade and amount on elastic modulus of concrete is studied,and the mechanism is researched.At the same time,T test and F test methods are both applied to analyze the significance of experimental results.更多还原