Research On Loss Rule And Control Technology In Slump Of The Ready-mixed Concrete

Commercial concrete is commonly flow and pumpable concrete, the rheological properties of concrete are generally tied to the slump to comprehensive evaluation, the slump, which includes the cohesiveness, liquidity and stability of concrete mixture, is the index of its comprehensive performance. Control of concrete slump is an absolute index in Specifications, because of different cement sinkage time, climate change in different seasons, admixture and additive change exist a big influence on concrete slump, therefore it is difficult to control concrete slump.In this paper, There are m ore than t housands of groups of C15-C40 concrete products using these operating characteristics and mechanical behavior of the test data as the foundation, for the research on the concrete performance test, the influence law of cube compressive strength and th e ready-mixed commodity concrete slum p loss, especially the m ain factors influencing the concrete slump loss with different m ixture ratio and raw m aterial; Through investigating the experiment and commercial concrete performance, summarizing the factors and arranging them for the degree of influencing the concrete slump loss, according to the m ain factors affecting the concrete s lump loss, the corresponding method to control concrete slump loss are put forward.Through the research on ready-mixed cone rete slump loss influence factors, exploring the rule of ready-m ixed concrete slump loss and m aking appropriate control methodology, regarding as a reference for rea dy-mixed concrete mixing and construction in the future, servicing the user better.