A kind of plastering anti-cracking waterproof mortar and preparation method thereof

Abstract

The application relates to the field of concrete, and specifically discloses a plastering anti-cracking waterproof mortar and a preparation method thereof. Mortar includes cement: 280-314 parts; sand: 1100-1320 parts; stone powder: 66-78 parts; admixture: 6.5-8.1 parts; polypropylene anti-cracking fiber: 0.8-1.3 parts; waterproofing agent: 8.9-11.7 parts; coumarone resin: 36-48 parts; aluminum dihydrogen phosphate: 28-42 parts; water: 185-215 parts; the preparation method is: after mixing and stirring each raw material of the mortar, That is the mortar. This application uses coumarone resin to crack and shrink under high temperature conditions to ease the high temperature expansion efficiency of plastering mortar, improve the high temperature bonding strength of aluminum dihydrogen phosphate, and improve the bulging and cracking of mortar after fire.

Description

technical field [0001] The application relates to the field of building materials, more specifically, it relates to a plastering anti-cracking waterproof mortar. Background technique [0002] With the advancement and development of grassroots construction and urbanization, the demand for plastering mortar used in building decoration projects is also increasing. Plastering mortar is a type of plastering mortar used to level or protect the base surface of the building Mortar, collectively referred to as mortar, is suitable for decoration of interior and exterior walls, cover surfaces, bottom surfaces, ceiling plastering, etc. of construction and decoration projects, and plays a protective and beautifying role. [0003] At present, plastering mortar generally does not have the performance of heat resistance and fire prevention. When a fire breaks out in a building, the temperature of the wall surface will change due to the fire. The temperature expands, and it is easy to produ...

AI Technical Summary

Problems solved by technology

[0003] At present, plastering mortar generally does not have the performance of heat resistance and fire prevention. When a fire breaks out in a building, the temperature of the wall surface will change due to the fire. The temperature expands, and it is easy to produce bulges or cracks, which is difficult to meet the higher actual engineering needs. The durability of the plastering mortar is not high, and the wall after the fire needs to be repaired in a large area, which is not economical and environmentally friendly.