tile grout

Abstract

The invention provides a tile joint filling paste. The paste at least comprises the following components in parts by weight: 6 to 17 parts of water, 0.4 to 1.2 parts of potassium trimethylsilanolate, 0.27 to 0.32 part of dispersant, 0.08 to 0.12 part of wetting agent, 16 to 35 parts of high active quartz powder, 25 to 45 parts of precipitated barium sulphate, 0.1 to 0.4 part of filling agent, and 12 to 28 parts of elastic emulsion; wherein the wetting agent has an emulsifying function, and the elastic emulsion has an adhesive effect. After the curing of the tile joint filling paste, a material with a block structure comprising soft chain segments and rigid chain segments is formed; the material has a good resilient property and displacement compensating performance, has a very good adhesive force on basic materials, has the advantages of wear resistance, vibration resistance, low temperature resistance, good elasticity, and large elongation rate, can be applied to the construction crack treatment, can provide a long-lasting filling and fixing effect, and prevents secondary contraction cracking.

Description

technical field [0001] The invention relates to building decoration material technology, in particular to a ceramic tile joint filling paste, which belongs to the technical field of building crack treatment and repair. Background technique [0002] At present, most buildings will crack after long-term use. The main reason is that the cement base material of the building wall has architectural stress, and the building has thermal expansion and contraction deformation in the natural environment, resulting in the stress concentration of the wall. Cracking makes the surface decorative layer (tiles, paints, etc.) suffer from several stubborn problems such as water seepage, hollowing, and shedding. The bonding force with the base layer and tiles is achieved by the tensile force generated by the hardened body formed by the caulking agent penetrating into the pores of the substrate. The bonding strength to the dense substrate is low, and the tile grouting agent is more brittle after...

AI Technical Summary

Problems solved by technology

Among them, pure cement and cement mortar have high rigidity, poor viscosity, and strong water absorption, resulting in poor waterproof and freeze-thaw resistance; tile sealants have large shrinkage during drying, and tiles and sealants are prone to separation and fine cracking, resulting in Water seepage; silicone caulk is uneconomical and prone to aging

In the prior art, there is also a tile grout that is a premixed powder of cement and dry powder latex, which is mixed with water on site to form a paste, which often causes loosening of the hardened body due to improper operation.

In addition, there is also a type of one-component moisture-curing polyurethane sealant in the prior art, which is a liquid product. Although its performance is slightly better, it contains organic solvents, which volatilize into the air during the drying process, pollute the environment, and have certain The pungent smell, the product is also a hazardous chemical, and there are certain risks in production, transportation and storage