Concrete inducer, method of placing concrete, and method of determining appropriateness of use of concrete inducer

摘要

[PROBLEMS] To provide a concrete induction agent capable of preventing a pipe blockage in a small amount compared to a prior mortar, a method of placing concrete using the same, and a method of determining the propriety of use thereof. A concrete inducer contains particulate matter and at least one of a fiber and a fiber structure. The particulate matter contains at least one of raw concrete sludge and its treated matter, blast furnace slag fine powder, fly ash and silica fume, or has an average particle size of 0.1 μm to 1 mm and a brane specific surface area of 1500 cm 2 / g or more Contains particulates. 【Selection chart】 None