C20露骨透水混凝土的研制及工程应用

Preparation and engineering application of C20 exposed aggregate pervious concrete

成都某软件工厂项目厂区内人行道设计使用6～8 mm人造卵石C20露骨透水混凝土,针对项目要求,通过调整胶凝材料组成与用量、选用优质的超细矿物掺合料、掺入高性能聚羧酸减水剂、优选性能稳定的表面清洗剂,制备出工作性能、表观效果、透水性及力学性能良好的C20露骨透水混凝土,并通过采取一系列质量控制措施,将该混凝土成功应用于实际工程中,取得了良好的实施效果。

C20 exposed aggregate pervious concrete was designed for the sidewalk of Chengdu one software engineering,the congcrete using artificial pebbles as a coarse aggregate, contrary to the project requirements,by adjusting the composition and dosage of cementitious materials, selecting high quality superfine mineral admixture, adding high performance polycarboxylate water reducer, and selecting stable surface cleaning agent,the C20 exposed aggregate pervious concrete with good workability,apparent effect,water permeability,mechanical properties and uniform color was developed, and has been successfully applied in engineering, good construction effect was achieved at last.