Preparation method of high-performance dry-mixed mortar

Abstract

The invention provides a preparation method of high-performance dry-mixed mortar, which comprises the following steps: providing machine-made sand, and drying; conveying the dried machine-made sand toa probability sieve using a belt conveyor and an elevator, sieving the machine-made sand into coarse, medium and fine sand with different specifications, and storing the sand; selecting sand of different specifications according to different requirements for manufacturing mortar; by weight, feeding 100 to 130 parts of PO42.5 cement, 70-90 parts of stone powder, 800-820 parts of sand and 0.4-0.6 part of an admixture into a stirrer to be mixed and stirred for longer than 3 minutes; and after stirring, conveying obtained mortar into a special mortar tank on a construction site through a transport vehicle to be continuously stirred for later use. The beneficial effects are that: the mortar can be used while being mixed, the quality is reliable, the construction performance is improved, the characteristics of water retention, modification and consistency of the admixture are fully utilized, the workability and operability of mortar are improved, and the working and production efficiency ofconstructors is improved.

Description

【Technical field】 [0001] The invention relates to the technical field of building construction materials, in particular to a preparation method of high-performance dry-mixed mortar. 【Background technique】 [0002] At present, the construction performance of dry-mixed mortar is generally poor in China. Therefore, there is an urgent need for a green, environmentally friendly and energy-saving material that can prevent dry-mixed mortar (plastering) from cracking and hollowing after construction. 【Content of invention】 [0003] The invention discloses a preparation method of high-performance dry-mixed mortar, so as to solve the problems involved in the background technology. [0004] To achieve the above object, the technical solution of the present invention is: [0005] A method for preparing high-performance dry-mixed mortar, comprising the steps of: [0006] Provide machine-made sand and dry it; [0007] The dried machine-made sand passes through the belt conveyor and e...

AI Technical Summary

Problems solved by technology

[0002] At present, the construction performance of dry-mixed mortar is generally poor in China. Therefore, there is an urgent need for a green, environmentally friendly and energy-saving material that can prevent dry-mixed mortar (plastering) from cracking and hollowing after construction.