废弃混凝土作再生细骨料研究

Study on Waste Concrete as Reclaimed Fine Aggregate

利用废弃的混凝土破碎制成混凝土用细骨料是解决废弃混凝土的一种较好的方法。通过对比研究利用废弃混凝土制作的混凝土再生细骨料与其它细骨料性能,及测试两种细骨料配制混凝土的拌合物和易性、立方体抗压强度、轴心抗压强度和弹性模量,得出以下结论:混凝土再生细骨料与其它细骨料性能相近,可以替代其它混凝土细骨料配制混凝土,提高资源利用率,减少环境污染。

Cracked waste concrete is used to produce concrete fine aggregate, which is a good solution to waste concrete. This study starts with comparing the properties of concrete made by reclaimed fine aggregate with those made by other fine aggregate and it also tests the workability of the mixtures of those two fine aggregate, their cubic comprehensive strength, axial comprehensive strength and modulus of elasticity. This paper concludes that the properties of concrete made by reclaimed fine aggregate is similar to those made by other fine aggregate, and it can be used as a substitute for other fine aggregate to make concrete , thus enhancing resource utilization and reduce environmental pollution.