Machine-made sand wet-mixed mortar admixture and preparation method thereof

Abstract

The invention discloses a machine-made sand wet-mixed mortar admixture and a preparation method thereof. The machine-made sand wet-mixed mortar admixture is formed by compounding a special water reducing agent for wet-mixed mortar, a retarder, a water locking and retaining agent and a stabilizer, wherein maleimide alkyl acid and hydroxypropyl acrylate are introduced into the special water reducingagent for the wet-mixed mortar, so the problem that high mud content and high powder content of machine-made sand wet-mixed mortar influence absorption of an admixture and the water retaining property and the wrapping property of mortar are solved. According to the machine-made sand wet-mixed mortar admixture disclosed by the invention, the consistency and the water retention rate of machine-madesand wet-mixed mortar are improved, so the opening time of the mortar is prolonged, and the problems of complex compounding, considerable small functional materials, easy layering of a finished product and the like of a general wet-mixed mortar admixture are solved.

Description

technical field [0001] The invention relates to a machine-made sand wet-mixed mortar admixture and a preparation method thereof, belonging to the technical field of concrete admixtures. Background technique [0002] With the development of the construction industry, ready-mixed mortar has been well promoted and used. Ready-mixed mortar includes dry-mixed mortar and wet-mixed mortar. After mixing in a certain proportion, it is transported to the designated place and then mixed with water. The wet-mixed mortar is similar to commercial concrete. It needs to be mixed at the mixing station to make a finished product and then transported to the designated storage container. It can be taken directly when needed. Compared with dry-mixed mortar, wet-mixed mortar can ensure stable quality, avoid secondary mixing and noise and dust pollution on the construction site, and at the same time have more room for material selection, saving drying costs. Generally, wet-mixed mortar is compose...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a machine-made sand wet-mix mortar admixture and its The preparation method starts from the water-reducing mother liquor of wet-mixed mortar admixture, and develops a special water-reducing mother liquor for machine-made sand wet-mixed mortar admixture through molecular design. The admixture of the mortar mixing agent is cumbersome, the function is small and the materials are mixed, and the finished product is easy to delaminate, etc., and it does not affect the development time and strength of the mortar.

Images