A kind of wet-mixed mortar and preparation method thereof

Abstract

The invention provides wet-mixing mortar and a preparation method thereof, and belongs to the technical field of a building material. The technical problems that the wet-mixing mortar has short opening time and low peaceability are solved. The wet-mixing mortar comprises the following components in parts by weight: 15 to 20 parts of cement, 8 to 10 parts of coal ash, 7 to 9 parts of mineral powder, 120 to 140 parts of sand and 17 to 19 parts of water, and further comprises a mortar thickness conditioning agent and a mortar coagulation time conditioning agent, wherein the adding amount of the mortar thickness conditioning agent and the adding amount of the mortar coagulation time conditioning agent is 1.0 to 1.8 percent and 0.8 to 1.2 percent of the total weight of the cement, the coal ashand the mineral powder. The preparation method of the wet-mixing mortar comprises the following steps: mixing the cement, the coal ash, the mineral powder and the water, sequentially adding the mortarthickness conditioning agent and the mortar coagulation time conditioning agent, and stirring uniformly to obtain the wet-mixing mortar. The wet-mixing mortar prepared by the method has long openingtime and high peaceability, has the characteristics that the wet-mixing mortar is hard when being used and is not hard when not being used, avoids waste of materials and belongs to a product with lowenergy consumption.

Description

technical field [0001] The invention relates to a mortar and a preparation method thereof, in particular to a wet-mixed mortar and a preparation method thereof, and belongs to the technical field of building materials. Background technique [0002] Mortar is a building material mixed with inorganic cementitious materials, fine aggregates, additives and water in proportion. It is used in masonry and plastering projects in building construction to achieve building structure and surface protection, decoration, etc. [0003] The traditional mortar adopts on-site mixing, and the error of mixing time and metering device is relatively large, so it is difficult to guarantee the opening time and workability of the mortar. Wet-mixed mortar is different from the original production operation mode of traditional self-mixed mortar. It is directly produced in the commercial concrete mixing station, which can realize the industrialization and automation of production, and can be used immed...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the technical problems of short open time and poor workability of wet-mixed mortar, and provide a wet-mixed mortar and its preparation method. The mortar prepared by this method has long open time and good workability

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