Method for conducting wall painting construction through mortar spraying

Abstract

The invention discloses a method for conducting wall painting construction through mortar spraying. Spraying work is conducted through a mortar spraying machine, and wall painting construction is achieved. The method for conducting wall painting construction through mortar spraying is characterized in that in spraying, operation is conducted through a circulation spraying method of S-shaped movement from bottom to top; when the upper wall surface is sprayed, the gun holding angle is 35-45 degrees, and the distance between a nozzle and the wall surface is 30-45 cm; when the lower wall surface is sprayed, the gun holding angle is 70-80 degrees, and the distance between the nozzle and the wall surface is 25-30 cm; when the positions of door-window corners which have the distance with a door-window frame for no larger than 4 cm are sprayed, the gun holding angle is 30-40 degrees, and the distance between the nozzle and the wall surface is 6-10 cm; and when the wall surface located below a window is sprayed, the gun holding angle is 45 degrees, and the distance between the nozzle and the wall surface is 5-7 cm. According to the method for conducting wall painting construction through mortar spraying, the impact angle and speed of mortar on the wall surface can be effectively controlled, the binding force of the mortar and the wall surface is guaranteed, the coating life can be prolonged, and the physical properties of the mortar is intactly kept.

Description

technical field [0001] The invention relates to a method for treating the surface of a building, in particular to a method for plastering and coating a wall by using a mortar spraying technique. Background technique [0002] Plastering is a traditional construction method that uses mortar to smear the walls, floors, and ceiling surfaces of buildings to protect the walls, also known as powder walls. The traditional manual plastering construction method has the advantage of low cost, but its labor intensity is high and the construction efficiency is low. With the continuous increase of labor costs and the improvement of environmental protection requirements, manual plastering is gradually losing its low cost advantage. [0003] Mechanical plastering is achieved through mortar spraying, which prepares mortar through a ready-mixed mortar silo, uses a mortar pump to pressurize the mortar and sends it into the spraying equipment, atomizes the mortar into particles through the nozz...

AI Technical Summary

Problems solved by technology

This method enables common mortar to be used for mechanical spraying through secondary stirring, but only discloses the spraying method: when spraying dry, water-absorbing and thick walls, the distance between the nozzle and the wall is controlled at 50-100mm, And form a 90° angle with the wall; for walls with damp, poor water absorption, and thin reinforcement, the distance between the nozzle and the wall is 100-150mm, and the angle with the wall is 65°

And in other literatures about mortar spraying, also do not see the control method to nozzle when spraying.

[0005] In actual operation, it was found that if the above-mentioned conventional method is used for mortar spraying, the combination effect of the mortar and the wall surface is not good, and various problems such as ash falling, mortar flow, and large loss of mortar ejection will appear in different parts.

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