Anti-cracking waterproof construction method for post-poured strip

Abstract

The invention discloses an anti-cracking waterproof construction method for a post-poured strip. The method comprises the following steps of pouring of fine-stone waterproof concrete strips; binding of plate bottom reinforcing steel bars; installation of a lower-layer dense-hole steel wire mesh frame; installation of water-stopping steel plates; installation of an upper-layer dense-hole steel wiremesh frame; binding of plate top reinforcing steel bars; formwork hanging; pouring of concrete at the two sides of the post-poured strip; die removing and maintenance; removal of dense-hole steel wire meshes; pouring of concrete in the post-poured strip. The construction method is reasonable in design and convenient to operate, the anti-cracking and waterproof effects of the post-poured strip after construction are good, the economic benefits are increased, and meanwhile the construction quality of the post-poured strip is effectively ensured.

Description

Technical field [0001] The invention belongs to the technical field of post-pouring belt construction, and specifically relates to a post-pouring belt anti-cracking and waterproof construction method. Background technique [0002] In the construction of post-pouring zone in China, micro-expansion concrete is often poured in the post-pouring zone. The micro-expansion concrete can be integrated with the concrete on both sides of the post-pouring zone to have a good waterproof effect. However, many years of engineering practice shows that the post-pouring zone The location is still a frequent location where water leakage occurs. The main reason is that the uneven settlement of the foundation and the anti-floating effect of the foundation floor are affected by the excessive settlement of the concrete on both sides of the pouring zone, which causes cracking and leakage. At the same time, there is a gap between the steel mesh and the base layer in the traditional process. Concrete ofte...

AI Technical Summary

Problems solved by technology

[0002] In the domestic post-cast belt construction, micro-expansive concrete is often poured in the post-cast belt. The micro-expanded concrete can be connected with the concrete on both sides of the post-cast belt to form a whole with a good waterproof effect, but years of engineering practice have shown that the post-cast belt The site is still the frequent site of water leakage. The main reason is that the uneven settlement of the foundation and the anti-floating effect of the foundation floor affect the concrete on both sides of the post-casting belt. The settlement is too large, resulting in cracking and leakage.

At the same time, there is a gap between the steel wire mesh and the base layer in the traditional process. During the vibration process, the concrete often flows into the post-casting belt from the gap, causing concrete deposits in the post-casting belt, which not only requires more labor to clean up but also affects the construction quality of the post-casting belt.

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