How to repair the cracks in the sinking wall of private foundation

The method of repairing the cracks on the sinking wall of private house foundation can use cement mortar, elastic putty or gypsum to fill the cracks, and then caulk and paste them.

1 cement mortar

It is a mortar made of cement, fine aggregate and water as required, that is, cement+sand+water, and cement mixed mortar is made of cement, fine aggregate, lime and water. They are different concepts with different names and uses.

2, elastic putty

It is made of acrylic emulsion and inorganic materials, and is used to solve the quality problem of facing cracks in building walls. It is used for anti-microcracking base treatment of various wall finishes, including concrete, cement mortar plastering, hollow bricklaying and various insulation board finishes. According to the degree of elasticity, it can be divided into high elasticity, high elasticity and low elasticity, and according to the composition, it can be divided into one-component exterior wall putty and two-component exterior wall putty.

3. Gypsum

It is a hydrate, and its main chemical component is calcium sulfate, which is a monoclinic mineral. Gypsum is a widely used industrial material and building material. Its microporous structure and heating dehydration make it have excellent sound insulation, heat insulation and fire prevention performance, and can be used in cement retarder, gypsum building products, model making, medical food additives, sulfuric acid production, paper filler, paint filler and so on.

basis

Refers to the soil or rock mass supporting the foundation under the building. As a building foundation, the soil layer is divided into rock, gravel soil, sand soil, silt soil, cohesive soil and artificial fill. There are two kinds of foundations: natural foundation and artificial foundation (composite foundation). Natural foundation is a natural soil layer that does not need to be reinforced. Artificial foundation needs artificial reinforcement, such as stone chip cushion, sand cushion and mixed lime soil backfill and compaction.