Mortar crack-arresting and waterproof agent for construction

Abstract

Belonging to the technical field of building waterproof materials, the invention discloses a mortar crack-arresting and waterproof agent for construction. The mortar crack-arresting and waterproof agent for construction comprises the following components by weight: 30-50 parts of silica fume, 20-40 parts of gypsum powder, 10-20 parts of nano-zinc oxide, 30-50 parts of water glass, 10-20 parts of alum, 10-20 parts of sodium hydroxide, 10-30 parts of propyl trimethylsilane, 5-15 parts of iron powder, 5-15 parts of Span-80, 10-20 parts of ferrous sulfate, and 50-100 parts of water. According to the invention, under the action of water glass, alum, sodium hydroxide and iron powder, the silica fume, gypsum powder and nano-zinc oxide permeate into the voids of mortar to enhance the density. And under the action of propyl trimethylsilane, Span-80 and ferrous sulfate, the fluidity and condensation speed of the waterproof agent is enhanced. The mortar crack-arresting and waterproof agent for construction provided by the invention has the advantages of environmental friendliness, crack arrest, simple construction, good impervious performance, and long service life.

Description

technical field [0001] The invention belongs to the technical field of building waterproof materials, in particular to a crack-proof and waterproof agent for building mortar. Background technique [0002] Building waterproofing is the measures taken from the building materials and structure to prevent water from penetrating certain parts of the building. Waterproofing is mostly used in roofs, underground buildings, underground parts of buildings, inner chambers and water storage structures that need to be waterproofed. According to the different measures and means adopted, it can be divided into two categories: material waterproof and structural waterproof. Material waterproofing is to rely on building materials to block the passage of water to achieve the purpose of waterproofing or increase the ability to resist leakage, such as waterproofing of coiled materials, waterproofing of coatings, rigid waterproofing of concrete and cement mortar, and waterproofing of clay and li...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a crack-proofing and waterproofing agent for mortar used in construction, which solves the problems in the prior art that the mortar waterproofing agent is easy to crack, resulting in poor waterproofing effect and short service life.

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