再生混凝土抗弯疲劳性能试验研究

Experimental Research on Flexural Fatigue Performance of Recycled Concrete

本试验用再生石替代混凝土中天然粗骨料制成再生混凝土。再生粗骨料替代率对再生混凝土的各项性能有着不可忽视的影响。为了充分了解其性能,本文中对不同替代率的再生混凝土进行弯疲劳试验,得出数据分析其抗弯疲劳性能,并最后得到p′-S-N的疲劳方程。

In this experiment,recycled stone was used to replace natural coarse aggregate in concrete to make recycled concrete.The replacement rate of recycled coarse aggregate has a non-negligible effect on the performance of recycled concrete.In order to fully understand its performance,this paper conducted bending fatigue tests on recycled concrete with different replacement rates,and obtained data to analyze its bending fatigue performance,and finally obtained the fatigue equation p′-S-N.