LOW SHRINKAGE AND FAST CURING MATERIAL FOR ORDINARY TEMPERATURE ASPHALT PAVEMENT

摘要

PROBLEM TO BE SOLVED: To provide a low shrinkage and fast curing material for the ordinary temperature asphalt pavement which can prevent the generation of cracks due to shrinkage and keep appropriate rigidity for a long term. SOLUTION: This low shrinkage and fast curing material for the ordinary temperature asphalt pavement is a mixture comprising (1) Portaland cement, (2)fast curing agent, (3) blast furnace slag or silica sand, and (4) expanding agent, where the fast curing agent preferably comprises, on the weight basis, 100 parts of sludge derived from stainless steel works, 35 to 75 parts of anhydrous gypsum, and 0.1 to 10 parts of at least one cure retardant selected from organic and inorganic cure retardants, or 100 parts of alumina cement and 5 to 50 parts of hydrated lime.