Correct treatment method of abrasion-resistant flooring after cracking

Question

Accepted Answer

During the use of the wear-resistant floor, due to various factors, especially the temperature and pressure, the surface cracking is likely to occur, which causes the integrity and strength of the floor to gradually decrease.

How can we solve the cracked wear-resistant floor? In fact, it is very simple to say, as long as we analyze the cause of the cracking of the floor, and then take corresponding remedial measures based on the actual situation of the floor, it is OK.

The causes of cracking of wear-resistant floors are mainly concentrated in the following aspects:

During the construction of abrasion-resistant floor, the material was unevenly mixed and the mixing ratio was wrong, which made its concrete structure insufficient in strength and cracked the abrasion-resistant surface layer under the effect of internal pressure;

When dividing the floor, the spacing is too large, and in the process of vibrating the concrete, the lack of management results in the vibrating is not dense;

The abrasion-resistant surface layer was not fully brushed and polished in accordance with the design requirements or corresponding standards, and no targeted floor maintenance was carried out in the later stage.

For the wear-resistant floor where cracking has occurred, the following steps can be taken to treat it:

Relieve stress: If the cause of cracking is analyzed, the cracking is caused by the problem of uneven settlement and the stress cannot be released in time. The stress in the concrete needs to be fully released before the crack treatment can be performed to avoid repeated occurrences. Cracking phenomenon. The stress can be released by re-cutting the floor, and gradually proceeding from the uncracked floor to the high-density cracked site to prevent the growth and expansion of cracks in the concrete.

Clean up the base layer: clean up the base layer of the cracked part with corresponding tools and methods, and remove the dust and debris in the cracked part without damaging the bottom plate, which will facilitate the subsequent construction.

Dense grouting: Grouting is the final link to the cracking problem and the most critical link. First, the location of grouting must be determined, combined with the actual situation of cracking, the appropriate grouting point is selected, and the surrounding dust is cleaned.

Secondly, an air pump is used to press water into the cracked part of the concrete and wet it to improve the degree of binding with the slurry. Then, water is mixed with the corresponding glue and injected into the crack.

Finally, use a manual mixer to prepare the cement, and use an air pump to uniformly press the cement slurry filtered through the filter into the pre-buried PVC pipe until the cracks are full of cement slurry.

After the grouting is completed, make sure that there are no heavy objects stacked on the floor within 24 hours, and no one can be accepted. After that, use the corresponding polishing machine to treat the cracked surface to keep the overall floor flat and beautiful.

Most of the problems of wear-resistant floor cracking are caused by the construction stage of the floor, so we must follow the standards for the construction of the wear-resistant floor. Make up for earlier mistakes.