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通过对4组不同配合比的低强再生碎砖混凝土试块进行力学试验,试验结果表明:粉煤灰采用等量取代的方式掺入能改善混凝土的和易性但对强度会有较大的影响,且在一定的范围内,其掺量与抗压强度的下降幅度基本相等;低强再生碎砖混凝土的应力-应变曲线与普通混凝土相似,但其弹性模量不能直接套用普通混凝土的经验计算公式。
Through four groups of low-strength recycled brick broken brick with different proportions of mechanical tests, the test results show that: the same amount of fly ash can be used to replace the way to improve the workability of concrete but will have a greater strength And within a certain range, its content is basically the same as that of compressive strength. The stress-strain curve of low-strength recycled bricked brick concrete is similar to ordinary concrete, but its elastic modulus can not be directly applied to ordinary concrete Calculation formula.