Rapid-hardened type veneer stone early-strength adhesive

Abstract

The invention discloses a rapid-hardened type veneer stone early-strength adhesive, wherein a mortar is prepared by compounding cement, coal ash, fine aggregates, silica powders, latex powders, cellulose ether, a thixotropic agent, an early-strength agent, an expansion agent, a slow release agent and a water repellent; the rapid-hardened type veneer stone early-strength adhesive is prepared by stirring uniformly after adding water to a mixture of the cement, the coal ash, the fine aggregates, the silica powders, the latex powders, the cellulose ether, the thixotropic agent, the early-strength agent, the expansion agent, the slow release agent and the water repellent according to the specified proportion during construction. The rapid-hardened type veneer stone early-strength adhesive disclosed by the invention has the advantages that the operable time is larger than 30min, the tensile adhesion strength after the adhesive is aired for 10min is not lost, and the 24h tensile adhesion strength is larger than 0.70Mpa; by utilizing the reasonable matching design, under complex environments of soaking in water, freeze thawing and the like, the tensile adhesion strength is larger than 1.5Mpa, and the tensile adhesion strength after the adhesive is thermally aged is not less than 1.1Mpa; meanwhile, the early-strength tensile adhesion strength of the adhesive is good, the body strength is larger than 30Mpa, and the design that the strength of the adhesive is equal to the strength of C30-stage concrete of a base layer is utilized.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a quick-setting early-strength adhesive for facing stones used for bonding decorative materials. Adhesive, pasted decorative materials include natural stone, natural board, artificial stone, artificial board, environmental stone, ceramic products, decorative bricks, mosaics and other decorative materials, and the substrates to be bonded include architectural concrete walls, concrete floors, and mortar walls , Mortar floor, various natural ore materials, natural stone, artificial decorative materials, etc. Background technique [0002] Adhesive is a kind of adhesive used for decoration materials and cement product base surface, decoration materials and stone materials, mainly composed of cement and fine sand. On the one hand, the existing cement-based adhesives in my country are common types, which have defects such as low early tensile bond strength (24h),...

AI Technical Summary

Problems solved by technology

In short, the existing domestic cement-based adhesives have problems such as slow performance, inability to paste heavy and large decorative materials, and poor weather resistance.

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