CEMENT-BASED MATERIAL, CEMENT-BASED MATERIAL FILLING METHOD AND PREPACKED CONCRETE CONSTRUCTION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a cement-based material capable of extending flow distance in water, a cement-based material filling method using the same and a prepacked concrete construction method.SOLUTION: The cement-based material is a cement-based material by mixing water, powder containing cement and a thickener, the thickener contains an aromatic compound having a sulfone group and/or a salt thereof and a tetraalkylammonium salt, a ratio of a volume of water Vw to the volume of powder Vp, Vw/Vp is 130 to 210%, the cement weight mixed per 1 mis 200 to 600 kg and the weight ratio of the thickener to the water is 2.0% to 6%.