As a platform for the construction reinforcement engineering industry, Reinforcement Home is a building reinforcement industry, but it is also our boosting information related to testing and identification and reinforcement design. Recently, an appraisal company that has settled in the Reinforcement House told us that many owners consulted their wall crack detection and identification through the Reinforcement House. The owner also asked them how to do wall grouting and reinforcement?
It is right to consult the wall crack detection and contact the house appraisal company, but for the grouting and reinforcement construction of the wall crack, this requires a professional reinforcement company to take over the work.
We notified the owner of a construction company's requirements for the construction of cracks and grouting reinforcement of the wall, and the reinforcement company also patiently told the reinforcement house how the wall was cracked and grouted. Let me share with you below.
The reinforcement company said that cracks in the wall are often encountered, but we can classify the cracks into two types, one is temperature cracks. This is the most common in the wall. This kind of crack is common at the junction of different materials, such as the horizontal crack at the junction of the ring beam and the brickwork. General materials have the properties of thermal expansion and contraction. The structure of the house is deformed due to changes in the surrounding temperature. The expansion coefficients of different materials are different, resulting in temperature cracks.
Different crack treatment methods are different. They suggest that for such cracks, there is no additional thermal insulation layer on the roof. The roof panel absorbs more heat by sunlight radiation, and the addition of an air insulation layer or the selection of materials with small thermal conductivity and excellent insulation performance can effectively control the temperature rise of the layer panel. The temperature of the floor panel is reduced, and the temperature difference between it and the wall is greatly reduced, which can effectively prevent the cracks of the top wall. If the existing temperature cracks do not affect the safety of the structure, they can be plugged with mortar after the cracks have stabilized.
The second type of crack is caused by uneven subsidence of the foundation. Some houses have uneven foundation settlement after completion, which will cause the wall to produce shear and tensile forces. When this additional internal force exceeds the tensile strength of the wall itself, cracks will occur, and These cracks will increase with the uneven settlement of the foundation.
When the cracks develop slowly and weaken after the house subsides, Reinforcement House believes that if the cracks are to be repaired, they must wait for the cracks to stabilize. The repair of such wall cracks is mostly treated with cement mortar, resin mortar caulking or cement grouting sealing protection. When the settlement cracks develop rapidly and have an accelerating trend, temporary support measures should be taken to reduce the foundation load and repair after strengthening the foundation. The methods of changing foundation characteristics, such as increasing foundation area, pile foundation underpinning and grouting, are commonly used for foundation reinforcement.
How to use grouting to reinforce the cracks on the wall? For different cracks, we choose different reinforcement methods.