Cast-in-place slab pipeline dense position anti-cracking measure and construction method

Abstract

The invention relates to the technical field of cast-in-place slab anti-cracking, and discloses a cast-in-place slab pipeline dense position anti-cracking measure. The cast-in-place slab pipeline dense position anti-cracking measure comprises the following steps that S1, firstly, according to the thickness of a cast-in-place concrete slab, a small and medium-sized PVC pre-embedded threading pipe is selected, then a plurality of circular grooves are formed in the surface of the PVC pre-embedded threading pipe at equal intervals, and a plurality of circular holes are formed in the PVC pre-embedded threading pipe at equal intervals in a circle; S2, a plurality of reinforcing steel bars are enabled to penetrate through the interior of the PVC pre-embedded threading pipe; and S3, a prefabricated mold is adopted, and self-repairing concrete is poured into the prefabricated mold. According to the cast-in-place slab pipeline dense position anti-cracking measure, the plurality of circular grooves are formed in the surface of the outer side of the PVC pre-embedded threading pipe, after the PVC pre-embedded threading pipe is pre-embedded and enters self-repairing concrete, the self-repairingconcrete can enter the circular grooves, thus the connecting tightness of the self-repairing concrete and the PVC pre-embedded threading pipe is improved, and therefore the situation that when commercial concrete is poured and tamped, the PVC pipe is prone to moving, the protective layer at the top or the bottom of the slab is thinned, and cracks in the direction of the threading pipe appear on the floor slab can be avoided.

Description

technical field [0001] The invention relates to the technical field of anti-cracking of cast-in-place slabs, in particular to an anti-cracking measure and construction method of a cast-in-place slab where pipelines are densely packed. Background technique [0002] Cracks in cast-in-place concrete floor slabs are one of the most difficult problems to solve in building construction. Its main hazards are: affecting the use function and appearance; destroying the integrity of the structure and reducing its rigidity; causing corrosion of steel bars. [0003] The cast-in-place commercial concrete slab is a structural form commonly used in civil buildings, and cracks in the cast-in-place slab are one of the common quality problems that are difficult to overcome at present, and have become a hot issue in engineering quality complaints in recent years. Cracks mainly appear within a few months to a year after the completion of the house, and are mostly distributed at the sun corners a...

AI Technical Summary

Problems solved by technology

When commercial concrete is poured and tamped, it is easy to cause the PVC pipe to move, making the top or bottom protective layer of the slab thinner, so that cracks appear on the floor along the direction of the threading pipe

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