Reinforcing agent for bonding bricks

Abstract

The invention discloses a reinforcing agent for bonding bricks. The reinforcing agent is prepared from a powder component and a liquid component, which are mixed evenly at the ratio of 2 to 1 in use, wherein the powder component is prepared from the following raw materials: 30%-45% of 42.5 ordinary portland cement, 51.5%-68.8% of 30-60mesh quartz sand, 1%-3% of redispersible powder VAE, and 0.2%-0.5% of hydroxypropyl methyl cellulose ether with the viscosity being 40000 / mPa.s; and the liquid component is prepared from the following raw materials: 40%-60% of acrylic emulsion and 40%-60% of water. The reinforcing agent is coated on the back surface of each brick, and then is dried, and the bricks are pasted by adopting a cement-based adhesive. According to the reinforcing agent disclosed by the invention, the tensile adhesive strength between the adhesive and the bricks is improved; the situations of hollowing and dropping of the bricks after being pasted are reduced; and the bricks are relatively firm and safe to paste.

Description

technical field [0001] The invention belongs to construction mortar materials, and is a two-component adhesive mortar modified by polymer emulsion, that is, a brick adhesion enhancer. Background technique [0002] With the variety of indoor decorative bricks becoming more and more diverse, various types of vitrified bricks, artificial marble, and homogeneous bricks have been used as important decorative materials on indoor floors and walls. Extremely low water absorption, fairly dense material and smooth surface bring great difficulty to the subsequent bonding materials. [0003] At present, most of the vitrified tile paste materials used in the market are generally cement-based dry powder type vitrified tile adhesives or polymer epoxy glue adhesives. Cement-based dry powder vitrified tile adhesives are mainly composed of cement, sand and additives. The adhesive after adding water is too thick to penetrate into the interior of dense vitrified tiles to form a bite force, and...

AI Technical Summary

Problems solved by technology

Cement-based dry powder vitrified tile adhesives are mainly composed of cement, sand and additives. The adhesive after adding water is too thick to penetrate into the interior of dense vitrified tiles to form a bite force, and can only form a sticky surface on the surface. Once affected by the environment, temperature difference, base layer deformation and other factors, it is easy to cause the breakage of molecular bonds, so that the vitrified bricks will fall and hollow out, causing certain safety hazards, and at the same time increasing the repair rate in the later period, wasting a lot of manpower and physical resources

However, polymer epoxy adhesives have short service life, poor aging resistance, and are not environmentally friendly products, so they are not suitable for indoor environments.

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