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为探讨混凝土在掺入不同橡胶粒径及掺量下的力学性能,以橡胶颗粒等体积取代C25混凝土内的细骨料,制成三种不同颗粒粒径的橡胶混凝土,并分别对其抗压强度、抗折强度、轴心抗压强度、劈裂抗拉强度以及拉压比进行试验研究。结果表明:橡胶混凝土的抗压强度、抗折强度、轴心抗压强度及劈裂抗拉强度的变化均随着橡胶颗粒掺量的增加呈不同程度的减小,其中抗压强度的减小程度尤为明显;三种橡胶颗粒混凝土的拉压比变化均随着橡胶颗粒掺量的增加呈非线性变化,但拉压比有所增大;在混凝土路面中掺入适量的橡胶颗粒,能有效增强其韧性。
In order to investigate the mechanical properties of concrete mixed with different rubber particle size and dosage, three kinds of rubber concrete with different particle sizes were prepared by replacing the fine aggregate in C25 concrete with equal volume of rubber particles, Strength, flexural strength, axial compressive strength, splitting tensile strength and tensile ratio were tested. The results show that the compressive strength, flexural strength, axial compressive strength and splitting tensile strength of rubber concrete all decrease to some extent with the increase of rubber particles, in which the compressive strength decreases The tensile strength and compressive strength of the three kinds of rubber concrete are nonlinearly changing with the increase of the content of rubber particles, but the ratio of tension and pressure is increased. Addition of the appropriate amount of rubber particles in the concrete pavement is effective Enhance its toughness.