Producing method for directly-scraped permeating adhesion mortar for concrete surface layer

Abstract

The invention discloses a producing method for directly-scraped permeating adhesion mortar for a concrete surface layer. The directly-scraped permeating adhesion mortar for the concrete surface layercomprises the following raw materials: sand aggregate, pure Portland cement, a composite coupling agent, fly ash, dispersible latex powder, a cellulose ether, a starch ether, anti-crack fibers, a water reducing agent, and a permeating crystallization master batch. According to the invention, the method improves the inherent shortcoming that the mortar is hard brittle, and has the advantages of improving the crack resistance and leakage resistance of the mortar, reducing hollowing, increasing adhesion force and the like, thereby making the mortar more suitable for mechanized construction; and the mortar has the advantages of a less adding amount and high cost performance, the mortar strength is improved, the problems that the mortar is dry, not easy to scrape in batches and low in bonding strength, phenomena of hollowing and shedding easily occur, the shrinkage is large, the surface is easy to crack and the like are solved, the frost resistance, permeability resistance and water resistance of the mortar are improved, the mortar has good compatibility with a mold releasing agent, the adhesion of a concrete interface and the mortar is improved, and the permanent and firm adhesion of the mortar and concrete interface is achieved.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a production method of direct-scraping and penetrating adhesive mortar for concrete surfaces. Background technique [0002] Mortar, the bonding substance used in building bricks, is composed of a certain proportion of sand and cementing materials (cement, lime paste, clay, etc.) plus water, also called mortar, and also used as mortar. Mortar is made by mixing cementitious materials (cement, lime, clay, etc.) and fine aggregate (sand) with water. Commonly used are cement mortar, mixed mortar (or cement-lime mortar), lime mortar and clay mortar. [0003] Mortar is one of the most widely used building materials in construction engineering, and it is widely used in masonry and plastering of buildings. In my country's current construction projects, more than 60% of buildings still use wall materials such as bricks and blocks, and the construction mortar used in masonry an...

AI Technical Summary

Problems solved by technology

[0004] Concrete shear walls generally use smooth wooden boards, steel plates or lighter aluminum materials as templates during the pouring process. Before pouring concrete, various release agents must be applied to the surface of these templates to cause damage to the subsequent plastering. great difficulty

For example, using interface agent for surface treatment, or plastering after wetting the surface, there are many processes and high requirements for mortar ratio, and hollowing and peeling often occur.

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