| abstract |
【Task】 Provides high-strength mortar that shortens the pre-treatment time during curing, does not require special curing conditions and special curing equipment, has a large zero-flow, excellent compression strength and bending strength, and has a small amount of drying shrinkage . [Solution] Cement, pozzolanic fine powder, fine aggregate, water reducing agent, reinforcing fiber, shrinkage reducing agent, air amount adjusting agent and water are kneaded, fluidity at 0 stroke flow is 250 mm or more, compressive strength after steam curing A high-strength mortar having a strength of 150 N / mm 2 or more, a bending strength of 20 N / mm 2 or more, and a dry shrinkage of 50 × 10 −6 or less in terms of the rate of change in length is obtained. As a result, the pre-treatment time during curing can be shortened, special curing conditions and special curing equipment are unnecessary, zero flow is great, compression strength and bending strength are excellent, and the amount of drying shrinkage is small. [Selection figure] None |