What are the causes and solutions of sand on concrete cement floor?

Concrete floor sand is a common problem in daily life.??

We need to know why and avoid it at the source.If there has been a ground sand situation, to solve the problem.??

Is there any good solution when it is found that our concrete cement ground has sand???Causes and solutions of ground sand.??

Reasons for sand on cement floor:??

1, water cement ratio is too large: mixed concrete water content is large, resulting in concrete surface bleeding, thereby reducing the surface strength of concrete.?

2, unreasonable sand grading, high mud content: too fine soil and sand will also cause the ground sand, affecting the early hydration of cement and concrete condensation.??

3, construction vibration is too large: this will aggravate the concrete surface bleeding, thereby reducing the surface strength of concrete.??

4, improper maintenance: not timely maintenance or unreasonable maintenance.??Blasting or strong winds will cause the surface concrete to lose a lot of moisture, the surface will not be fully hydrated, resulting in a loss of strength.??

5. Other reasons: the pressing time is not well mastered, and the concrete surface has not reached a certain strength before construction.??The surface of concrete is easy to freeze due to low temperature construction.

Solution:?

Concrete sealing hardener can be used.??

It can effectively penetrate into concrete, stone and other building materials.??Hardener through effective penetration, and concrete and stone material composition of chemical reaction and crystallization reaction, make the various components of concrete solidified into a solid entity, the porosity of the concrete block sizes, to get clean, compact as a whole, so as to improve the wear resistance of concrete, compressive capacity, density and permeability resistance.??

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