石粉含量对C80混合砂高性能混凝土性能的影响

摘要

In view of present situation on building sand in Anhui province, C80 mixed sand high performance con-crete is mixed with orthogonal experiment adopted, and the influences of stone-dust content and used in replacing cement as admixture on workability and compressive strength of C80 mixed sand high performance concrete are researched. Ac-cordingly, preparation technique of C80 mixed sand high performance concrete is proposed.%针对安徽省建筑用砂现状，采用正交试验技术，配制C80混合砂高性能混凝土，研究了石粉含量及石粉作掺合料对C80混合砂高性能混凝土工作性和抗压强度的影响规律；提出了C80混合砂高性能混凝土的配制技术。