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Construction machinery city, Xingyang Zone, Zhengzhou, Henan, China

How to control concrete quality and performance

2016-09-27

The factors that influence the quality of concrete: quality of raw materials, mixing ratio and the mixing process kinds of control. First is the raw material, the material needed for concrete mixing plants can be divided into aggregate, powder, water and admixtures. Refers to the aggregate including sand, stone, cement powder refers to a stable usually opt for quality, strength grade of not less than 42.5 Portland cement or ordinary Portland cement.
      Aggregate into coarse aggregate and fine aggregate, due to different concrete criteria for materials selection and matching different, no matter what type of concrete, the higher the quality of the raw materials it uses, the better. For the use of water is required without affecting the normal coagulation of cement and cherry harmful impurities, PH> 4 water can be used, and who have a certain amount of standard should be in accordance with a certain ratio.