Liquid admixture for cracking cement mortar and concrete

摘要

1. TECHNICAL FIELD OF THE INVENTION;Liquid admixture for cracking cement mortar and concrete.;2. The technical problem to be solved by the invention;It is intended to provide a liquid admixture that prevents cracking in the building fundamentally by preventing shrinkage during drying of cement mortar and concrete under any conditions.;3. Summary of Solution to Invention;And about 15 to 80% of the polymer copolymer, about 5 to 50% of the pectinic acid methyl ester, about 10 to 20% of the advanced dispersant, and about 1 to 5% of the formaldehyde.;4. Important uses of the invention;Used as admixture for cement mortar.