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It is very easy to cause concrete cracking if the construction or maintenance are not done correctly. What are then the five main causes of cracking concrete?
1. The cement proportion problem: Some workers in construction will add more water for a more fluid concrete. However, this will result in an increase in water-cement ratio. This will cause the concrete to harden too quickly, and lead to cracking.
2. Transport and mixing issues: If mixing and transporting concrete takes too much time, the water in the concrete will evaporate quickly. concrete . This leads to a concrete that is weaker on the construction site, unable to meet construction specifications.
3. Construction speed
4. Maintenance is unreasonable. During the period of maintenance, if late watering isn’t maintained, the result will be the Cracking phenomenon Later in the year, concrete will be used. Concrete is used in the future. Concrete Surface Watering You can water the surface of the concrete often to speed up the drying process. Concrete will shrink if it is not watered. Late cracking occurs when concrete strength is decreased.
5. Environmental factors: If the environment at the construction site is relatively dry and there is high temperature, wind, or both, then the evaporation of the concrete surface will be accelerated. The result is cracking on the surface. Concrete constructions are most likely to crack in summer and winter due to the temperature difference.
Add an anticracking agent. A composite anticracking agent made of a variety inorganic materials can prevent foam concrete from cracking by more than 80%. Add 2 to 3 kilograms per cubic foot.