Quick-hardening and ultra-early strength type cement concrete composition having high ductility modified by acrylic latex-based modifier and reinforcing and repairing method of road pavement using the same

摘要

The present invention comprises 10 to 40% by weight of a functional binder, 10 to 50% by weight of fine aggregate, 5 to 40% by weight of coarse aggregate, 0.1 to 10% by weight of mixing water, and 0.1 to 10% by weight of an acrylic latex-based modifier; The functional binder is based on 100 parts by weight of crude Portland cement, calcium sulfoaluminate 20 to 40 parts by weight, gypsum 10 to 30 parts by weight, barium titanate 10 to 30 parts by weight, sericite 1 to 10 parts by weight, polyaniline nanofiber 1 to 10 parts by weight, 0.1 to 5 parts by weight of clinoptilolite, and 0.1 to 5 parts by weight of zinc phosphate; The acrylic latex-based modifier is based on 100 parts by weight of the ethylene-methyl acrylate-methacrylic acid copolymer, 50 to 80 parts by weight of bisphenol A type epoxy resin, 30 to 60 parts by weight of dimer acid, 10 to 40 parts by weight of butadiene rubber latex , by using 1 to 20 parts by weight of acrylate-styrene-acrylonitrile latex and 1 to 20 parts by weight of a silane coupling agent; Bending, tensile and adhesion strength are greatly improved, and by promoting the initial hydration of cement and densification of the structure, it is possible to prevent cracking and expansion destruction caused by the shrinkage of concrete, as well as abrasion resistance and waterproofing properties. High-toughness cement concrete composition of super-velocity and crude steel type modified with an acrylic latex modifier that can significantly improve And it relates to a road pavement maintenance and repair method using the same.