ACID RESISTANT CONCRETE

摘要

PROBLEM TO BE SOLVED: To provide an acid resistant concrete which is low in viscosity of fresh concrete, has excellent formability and appearance, and in which higher strength is obtained by a short time atmospheric-pressure steam curing to thereby improve productivity. SOLUTION: This acid resistant concrete is obtained by mixing a cement composition which comprises (a) 10 to 85 wt.% molten slag powder having CaO/SiO2 mol ratio of 0.1 to 1.2, (b) 5 to 40 wt.%, in terms of solid content, alkaline silicate, (c) 5 to 50 wt.% alumina cement and (d) 2 to 40 wt.% blast furnace slag, with (e) aggregates and water, and then performing atmospheric- pressure steam curing of the resultant mixture.