CEMENT-BASED LOW-VISCOSITY RAPID HARDENING GROUT MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a cement-based low-viscosity rapid hardening grout material, in which, even when being filled into a gap of, for example, 3 cm or less, material separation hardly occurs, and a gap hardly occurs on the upper part of a hardened body of the cement-based grout material after curing, and more specifically, to provide a cement-based low-viscosity rapid hardening grout material, in which, even when being filled into a nonwoven fabric flat container arranged in a gap of, for example, 3 cm or less in height direction, material separation hardly occurs, and a gap hardly occurs on the upper part of a hardened body of the cement-based grout material after curing thereof.;MEANS: The cement-based low-viscosity rapid hardening grout material comprises cement, calcium aluminates, gypsums, fine aggregates, an alkali metal carbonate, a retarder, and a water-reducing admixture, has a flow-down time from immediately after mixing with water to 10 minutes thereafter of 7-15 seconds as measured by using a J funnel, and has compression strength of 3 N/mm² or more at a material age of 30 minutes. Further, each material is preferably in a respective specific range.;SELECTED DRAWING: None;COPYRIGHT: (C)2018,JPO&INPIT