High-intensity outer wall anti-cracking cement mortar

Abstract

A high-strength anti-cracking cement mortar for exterior walls, which is made of the following raw materials in parts by weight: 1.5-4.2 parts of sodium lauryl sulfate, 6-10 parts of glycerin, dodecyl dimethyl benzyl chloride Ammonium 1.6-3 parts, cement 20-36 parts, water-based epoxy emulsion 6-9 parts, cement waterproofing agent 3-6 parts, silica fume 1-3 parts, water-repellent agent 0.6-1.5 parts, flow modifier 0.2- 0.4 parts, 4-6 parts of quartz powder, 3-8 parts of active stimulating agent, 7-13 parts of sand, 2-4 parts of cellulase, 5-7 parts of kaolin, 1.5-2.8 parts of glycerol triglyceride, 3‑5 parts of sodium acetate. The beneficial effects of the present invention are: the high-strength anti-crack cement mortar for exterior walls of the present invention has excellent waterproof, anti-seepage and anti-crack properties, has high strength characteristics, can effectively reduce the occurrence of surface cracks, and is not easy to crack and fall off.

Description

technical field [0001] The invention relates to a high-strength anti-crack cement mortar for external walls. Background technique [0002] Cement is one of the most important building materials. It is widely used in industrial and civil buildings, roads, water conservancy and national defense projects. Its main characteristic is its plasticity after adding an appropriate amount of water. It can harden not only in air but also in water. At present, ordinary cement mortar has essential shortcomings such as low tensile strength, easy cracking, poor water resistance, low cohesive force, poor chemical resistance, no wear resistance, no crack resistance, etc., which can no longer meet the current use requirements. . Cracks and cracks in cement-based mortar and putty are common and universal problems. For example, the cement mortar of the exterior wall is exposed to the air for a long time, and it often expands or shrinks due to changes in humidity. The humidity deformation is re...

AI Technical Summary

Problems solved by technology

At present, ordinary cement mortar has essential shortcomings such as low tensile strength, easy cracking, poor water resistance, low cohesive force, poor chemical resistance, no wear resistance, no crack resistance, etc., which can no longer meet the current use requirements.