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以破碎的废混凝土作为替代粗骨料,冶炼渣作为替代细骨料,通过试验研究了粗骨料和细骨料在不同替代率的情况下混凝土的性能以及掺合料对混凝土性能的影响.研究表明:随着替代粗骨料替代率的增加混凝土的抗压强度、抗氯离子渗透性能也随之有少量的降低,适当掺量的冶炼渣替代细骨料可以提高混凝土的抗压强度和抗氯离子渗透性,但掺量过大反而使混凝土的抗压强度和抗氯离子渗透性降低.掺合料的加入会提高混凝土的抗压强度、降低氯离子扩散系数,对混凝土的耐久性有明显的改善.
Using the broken waste concrete as the substitute for the coarse aggregate and the smelting slag as the substitute fine aggregate, the properties of the concrete under different substitution rates of the coarse aggregate and the fine aggregate as well as the influence of the admixture on the properties of the concrete are experimentally studied. The results show that with the substitution of coarse aggregate, the compressive strength of concrete and the resistance to chloride ion permeability will decrease slightly, and the appropriate amount of smelting slag instead of fine aggregate can increase the compressive strength of concrete and Anti-chloride ion permeability, but the content is too large, but the concrete compressive strength and resistance to chloride ion permeability decreased.Adding materials will increase the compressive strength of concrete, reducing chloride ion diffusion coefficient, the durability of concrete Significant improvement.