废弃混凝土再生粗骨料物理性能研究

摘要

混凝土作为当前我国主要结构形式——钢筋混凝土结构中的主要建材之一，其新建需求量和拆除垃圾产生量巨大。目前我国处理废弃混凝土最理想的途径是发展再生混凝土，而再生骨料的物理性能会直接影响到再生混凝土质量的优劣。通过试验，得到了再生混凝土粗骨料的密度、压碎指标、吸水率、颗粒级配等物理性能参数，为今后再生混凝土的发展提供一定的参考帮助。%As the main building materials of reinforced concrete structure, concrete has large demand and wastes from demolished buildings. At present, the best way to dispose of the waste concrete in our country is to recycle concrete, and the physical properties of recycled aggregate will directly affect the quality of recycled concrete. Through the experiments, this paper shows the density, the crushing index, the water absorption, the particle size distribution etc. physical performance parameters of recycled concrete coarse aggregate, so provides a reference for the development of recycled concrete.