Thin plastering mortar material and preparation method thereof

Abstract

The invention provides a thin plastering mortar material and a preparation method thereof aiming at the defects existing in the quality and construction of existing interior wall plastering, and belongs to the technical field of interior wall building materials. The plastering mortar material consists of cement, quartz sand of 40 mesh <= particle size <70 mesh, quartz sand of 70 mesh <= particle size <100 mesh, quartz sand of 100 mesh <= particle size <140 mesh, 150 mesh quartz sand, hydroxypropyl methyl cellulose, starch ether, air entraining agent, water reducing agent, defoaming agent, thixotropic lubricant, rubber powder, water repellent agent, 3 mm polypropylene short fiber, 6 mm polypropylene short fiber and wood fiber. The use mount of the plastering mortar material is about one-fifth of a traditional material, the plastering thickness is not less than 2.5 mm, the strength of plastering mortar is high, the construction work of workers is reduced, the construction cost is reduced, wall surfaces after construction are smooth, emulsion paint can be brushed without the need to apply putty on the wall surfaces, and the construction work and the construction cost are further reduced.

Description

technical field [0001] The invention belongs to the technical field of interior wall building materials, in particular to a thin plastering mortar material and a preparation method thereof. Background technique [0002] Wall plastering is plastering, which refers to the project of plastering cement mortar, mixed mortar, and white lime mortar on the brick wall or concrete wall. Plastering work on indoor and outdoor walls is a job after the construction of the building structure is completed. Scientific plastering work can prevent moisture, weathering, heat insulation and other functions, and prevent the building walls from being eroded by wind, rain, snow, etc. . [0003] However, cement mortar is generally used for plastering the walls of existing buildings in my country. The average thickness of cement mortar is 20-25 mm, and the weight per square meter is more than 30 kg. Wait for the follow-up work. And there will be the following quality problems: [0004] 1. The bond...

AI Technical Summary

Problems solved by technology

[0004] 1. Insufficient bonding between the paint layer and the substrate, hollowing, cracks, and rough surface

[0005] 2. The plastering layer is too thick: the thickness of the plastering layer greatly exceeds the regulations, especially if it survives once, it will crack the plastering layer

[0006] In addition, due to the rapid development of my country's construction industry in the past 15 years, the river sand has long been exhausted. Now the construction is generally made of machine-made sand, which has a high dust and mud content, which will also have a negative impact on the quality of wall plastering.