钢渣与橡胶混合细集料混凝土力学性能与本构关系研究

Study on Mechanical Properties and Constitutive Relationship of Steel Slag and Rubber Mixed Fine Aggregate Concrete

文中采用橡胶颗粒替换部分钢渣细集料,分别制备出了橡胶含量为0%、10%、20%、30%、40%的钢渣与橡胶混合细集料混凝土.对钢渣与橡胶混合细集料混凝土的标准立方体抗压强度、轴心抗压强度、劈裂强度、抗折强度、弹性模量和本构关系等力学指标进行系统的分析与试验研究.结果表明:当橡胶掺量从0%~40%增大时,钢渣与橡胶混合细集料混凝土的抗压强度、抗折强度、弹性模量等均呈现下降的趋势.提出了钢渣与橡胶混合细集料混凝土的本构关系模型,理论值与试验值吻合较好,可应用于钢渣与橡胶混合细集料混凝土结构的受力分析.

Rubber particles were used to replace part of steel slag fine aggregate,and steel slag and rubber mixed fine aggregate concrete with rubber content of 0%,10%,20%,30%and 40%were prepared respectively.The standard cubic compressive strength,axial compressive strength,splitting strength,flexural strength,elastic modulus and constitutive relation of steel slag and rubber mixed fine aggregate concrete were systematically analyzed and experimentally studied.The results show that when the rubber content increases from 0%to 40%,the compressive strength,flexural strength and elastic modulus of steel slag and rubber mixed fine aggregate concrete show a downward trend.The constitutive relation model of steel slag and rubber mixed fine aggregate concrete is put forward.The theoretical value is in good agreement with the experimental value,which can be applied to the mechanical analysis of steel slag and rubber mixed fine aggregate concrete structure.