Without Automatic Measure的意思|示意

不自动计量 Abstract : This test is amid at the general existent problems of the water-repellent admixture use in pump concrete ,the powdery and high accretion admixture with many shortcomings ,without automatic measure ,with high working-intension ,with polluted environment and so on. We mixed many water-repellent elements for concrete according as the theory of reduce water ,adhibit gas ,reduce shrinkage , adding hydrophobe and so on. According the research ,we produce a multiple liquid water-repellent admixture for pump concrete with good performance and low accretion(under 215 %) .