How to avoid cracks and cracks in exterior wall putty, Dezny will answer you in detail

In the process of exterior wall decoration, polymer dry-mixed plaster mortar and exterior wall putty are very important materials. However, cracks or cracks often occur, causing trouble to construction engineering companies, real estate developers, decoration personnel, property management and maintenance personnel, and building materials manufacturers. In order to solve this problem, we need to fully understand the properties of relevant materials, construction processes, mutual relationships between materials, and technical principles, and scientifically select and use materials to ensure the quality of products and projects.

Polymer dry-mixed plaster mortar and exterior wall putty have the advantages of high quality, fast construction, high bonding strength and environmental protection. However, their cracks and cracks problems mainly originate from two aspects: "internal causes" and "external causes".

The "internal cause" is mainly due to the fact that some plastering mortars and putty products have large drying shrinkage and drying shrinkage speed, which generates large internal stress and leads to the destruction of the mortar structure. This problem is mainly due to the fact that the manufacturer does not fully understand the properties, functions and technical principles of the raw materials, the raw materials used do not meet the requirements, and the formula is unscientific, resulting in unstable product quality and poor crack resistance. Large areas of cracks and voids appeared soon after construction. Drum and shedding issues. In addition, the strength and anti-cracking effect of cement-based mortars and putties are also closely related to the use of water. The hydration and setting hardening of cement is a gradual and continuous process. Therefore, adequate hydration and good water curing can increase strength, reduce shrinkage, and improve crack prevention.

"External causes" are mainly caused by construction technology, foundation and natural environment. Unscientific and unreasonable building design and construction, foundation settlement, offset, too thick a layer of paint at one time during construction, obvious cracks in the base before construction, earthquakes, strong wind pressure and drought, etc. can all cause cracks. There are basically no reliable repair materials and technical means for cracks and cracks, which brings great difficulties to building decoration, decoration, waterproofing projects and future maintenance work.

Therefore, during the exterior wall decoration process, we need to fully understand the characteristics of polymer dry-mixed plaster mortar and exterior wall putty, and pay attention to factors such as construction technology, foundation, and natural environment. Only by scientifically selecting and using materials, and strengthening construction management and quality monitoring can we effectively avoid the problems of cracks and cracks in exterior wall putty.

There are basically no reliable repair materials and technical means for cracks and cracks, which brings great difficulties to building decoration, decoration, waterproofing projects and future maintenance work. Because cracks and cracks in exterior walls will change under different environmental conditions, such as foundation settlement, earthquakes, temperature differences, humidity changes, etc. The leak may reoccur shortly after the repair.