METHOD FOR SUPPRESSING DRYING SHRINKAGE CRACK OF FRESH CONCRETE AND CRACK REDUCING AGENT, AND METHOD FOR PLUGGING CRACK OF EXISTING CONCRETE AND CRACK PLUGGING AGENT

摘要

PROBLEM TO BE SOLVED: To provide a means for cheaply and easily suppressing a drying shrinkage crack of a fresh concrete, which is durable in freezing and thawing and usable in a cold district, and capable of giving densifying property and water retentivity to suppress the evaporation of inside water. SOLUTION: In a method for suppressing a drying shrinkage crack of a fresh concrete structure or a fresh concrete secondary product, the method is characterized by containing a process for suppressing a drying shrinkage crack by applying a lithium silicate-based surface modifying material to a fresh concrete which is wet-cured after demolding and after bringing the wet-curing to an end. COPYRIGHT: (C)2010,JPO&INPIT