Basement bottom plate pre-laying anti-sticking TPO waterproof coiled material construction method

Abstract

The invention discloses a basement bottom plate pre-laying anti-sticking TPO waterproof coiled material construction method, and relates to the technical field of underground building waterproofing. The method comprises the following steps of 1, base layer treatment, specifically, treating a base layer internal corner and a base layer external corner into an arc shape or a slope angle; 2, pile head treatment, specifically, cleaning a pile head, and coating the pile head and the periphery of the pile head with waterproof coating layers; 3, line snapping, specifically, paying off on the base layer and snapping out a planning line for paving the TPO waterproof coiled material; 4, pre-laying a coiled material, specifically, pre-laying the TPO waterproof coiled material on the base layer according to the planning line; and 5, welding joints of the coiled material, specifically, welding the joints of the TPO waterproof coiled material by using hot air welding equipment. The method is wide inapplication range, good in waterproof performance and free of waterproof blind areas.

Description

technical field [0001] The invention belongs to the technical field of underground building waterproofing, and more specifically relates to a construction method for pre-laying anti-adhesive TPO (thermoplastic polyolefin) waterproof coiled material on a basement floor. Background technique [0002] The anti-adhesive method of pre-laying waterproof rolls for underground engineering refers to pre-laying waterproof rolls on a firm, flat, and no obvious water-filled concrete cushion in advance, and then directly binding steel bars to pour concrete, and then pouring concrete and pre-spreading waterproof rolls The materials are permanently bonded together to achieve full adhesion, and there is no hidden danger of water channeling in the middle. Even if the coil is partially damaged, the water will be limited to a small range, and the waterproof layer of the coil and the cushion layer are empty. Bonding, not affected by the deformation and cracking of the cushion layer caused by bu...

AI Technical Summary

Problems solved by technology

[0003] Based on the above advantages, pre-paved waterproof membrane and pre-paved anti-adhesive construction are more and more widely used in underground engineering. For example, patent CN106120873B discloses the construction of a pile-raft foundation pre-paved anti-adhesive composite polymer waterproof membrane. The method mainly provides the waterproof treatment of polyethylene polypropylene fiber pre-paved anti-adhesive method construction and deformation joints, internal and external corners and other detail nodes; as the patent CN109267592 discloses a construction method of pre-paved anti-adhesive waterproof coiled material at the internal angle of the wall, mainly Provides the pre-paved anti-adhesive construction of the polymer self-adhesive film waterproofing membrane and the treatment of the inner corner of the wall; the above two pre-paved anti-adhesive waterproofing membranes can effectively prevent water channeling and ensure the reliability of the waterproof layer However, due to the limitations of the materials themselves such as unweldability, hard material, poor weather resistance, poor acid, alkali and salt resistance, these two polymer waterproof membranes greatly limit the use of membranes in harsh environments and Use of underground works in coastal areas

Patent CN109183844A discloses a construction method for pre-laying anti-adhesive TPO waterproof coiled material on the floor of the pipe gallery, which is mainly aimed at the pre-paved anti-adhesive construction of the TPO waterproof coiled material on the bottom plate of the pipe gallery. , all kinds of cast-off parts, lap joints, and lap joints at yin and yang corners and other key parts with waterproof leakage are treated, resulting in blind spots in waterproof construction

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