Site application of compaction unnecessary concrete
专利汇可以提供Site application of compaction unnecessary concrete专利检索，专利查询，专利分析的服务。并且PURPOSE:To place dense concrete without compacting works, by feeidng a high slump flow and highly viscous concrete, which is about 50% in water- cement ratio and mixed with a dispersing agent in which a part of fine and coarse aggregates are replaced by stone powder, into high-dense reinforcement steel rods or the like. CONSTITUTION:Steel rods 2 are arranged in a vessel 1 as a pattern for placing concrete of high-dense reinforcement and some space is provided at one side thereof. Next, not-yet-cured concrete having 50-70cm in slump flow value, 160-180kg/m in unit water volume, 30-70% in water-cement ratio in respective ranges, and further, replaced by a part of fine and coarse aggregates with stone powder of 150-300kg/m and mixed a dispersing agent, is poured by making use of its own gravity into the space 3 from the upper side. The stone powder having the average size of 15mum or smaller is used and the material, in which beta-naphthalenesulfonic acid formaline condensation product is mixed in alkali-soluble reactive high molecular substance, is used as the dispersing agent.，下面是Site application of compaction unnecessary concrete专利的具体信息内容。
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