Pure natural putty for exterior walls of buildings

Abstract

The invention relates to pure natural putty for exterior walls of buildings, and the putty is composed of the following raw materials by weight: 50-15o parts of white cement, 250-400 parts of lime putty, 110-150 parts of quartz sand, 4.2-6.9 parts of alum, 150-250 parts of white stone powder, 0.5-1.5 parts of rubber tree sap, and 20-40 parts of water. The preparation steps are: (1) crushing white stone powder, alum and quartz sand; (2) mixing white cement and lime putty and putting them into a mixer, adding the crushed white stone powder, alum and quartz sand in order, then adding rubber tree sap and mixing them uniformly; and (3) adding water into the discharged mixed dry and solid mixture, and performing concoction so as to obtain the pure natural putty for exterior walls of buildings. In step (1), the quartz sand is a particle able to be sieve through a sieve of 600 meshes. The putty provided in the invention has good technical performance and low cost, employs raw materials that are natural, nontoxic and harmless, and can save resources and protect the environment, thus being widely applied in batch embedded layer treatment in exterior wall finishing projects of various buildings.

Description

technical field [0001] The invention relates to a primer paint for building exterior wall finishing engineering, in particular to a natural type of putty for building exterior walls. Background technique [0002] Putty (also called mud filling) is a kind of decorative coagulation material for leveling the surface of the wall. It is a thick paste paint and an indispensable product before the paint is painted. As we all know, the usual putty embedding is first leveled with slaked lime, and then ordinary putty (old powder, wall ash) is approved. This method has buried many hidden dangers. The slaked lime in the wall will react with carbon dioxide in the air to form calcium carbonate, which will expand in volume, causing the wall to crack and cause wall leakage, endangering the normal living of residents. Although construction putty is only a kind of grass-roots treatment material, it has a large quantity and a wide range, and it is a kind of building material that must be paid...

AI Technical Summary

Problems solved by technology

Although the cost of imported rubber powder and emulsion mixed powder materials is lower, the process is still complicated and the cost is higher

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