论文部分内容阅读
为研究废弃汽车轮胎橡胶粒掺量对再生混凝土力学性能的影响,针对水灰比为0.48再生混凝土,进行了不同再生粗骨料取代率、不同橡胶粒掺量下混凝土密度及立方体抗压强度试验.结果表明:废轮胎橡胶粒再生混凝土的密度和抗压强度随着橡胶粒掺量的增加而减小,橡胶粒100%取代细骨料时,再生混凝土密度降低幅度约为18%~20%,而其抗压强度仅为不掺橡胶粒再生混凝土强度的15%左右;随着再生粗骨料取代率的增加,废轮胎橡胶粒再生混凝土的密度和抗压强度也随之而减小,但降低幅度不大;再生粗骨料的掺量小于30%时,再生混凝土的性能和普通混凝土接近,可以满足混凝土强度的设计要求.
In order to study the influence of rubber particle content of recycled vehicle tire on the mechanical properties of recycled concrete, aiming at the 0.48 recycled concrete with water-cement ratio, the experiments of different recycled coarse aggregate substitution rate, concrete density and cubic compressive strength The results show that the density and compressive strength of recycled rubber of recycled rubber tire decrease with the increase of the content of rubber particles, and the density of recycled concrete decreases about 18% ~ 20% when 100% , While its compressive strength is only about 15% of the strength of recycled concrete without rubber particles. With the increase of replacement rate of recycled coarse aggregate, the density and compressive strength of recycled rubber particles of waste tire rubber also decrease, But the reduction is not large. When the content of recycled coarse aggregate is less than 30%, the performance of recycled concrete is similar to ordinary concrete, which can meet the design requirements of concrete strength.