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A composite waterproof layer for environmental engineering and its preparation and construction method

A technology of environmental engineering and waterproof layer, applied in the field of materials, can solve the problems of large gap in waterproof effect, poor handling of lap joints, and difficulty in handling lap joints, so as to reduce the risk of water leakage, facilitate construction, and improve The effect of construction efficiency

Active Publication Date: 2017-01-11
YUGREAT (BEIJING) INTERNATIONAL TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Bentonite waterproof blanket is a commonly used geosynthetic material, but in the construction application of geosynthetics, it is very difficult to deal with the lap joints, and often the lap joints are not handled well, resulting in the failure of the later anti-seepage; on the other hand, the current market Most of the world uses synthetic sodium-based bentonite. Compared with natural materials, the waterproof effect of this bentonite is quite different. In addition to the problem of lap joints, the anti-seepage effect is not good, especially for those sewage treatment pools, which are caused by leakage. too risky
[0004] Technologists are trying various efforts to improve the above shortcomings of existing waterproof materials, but there is still no suitable countermeasure so far. Therefore, the technical field is in urgent need of a new technology that can overcome the above problems or partially solve the above problems

Method used

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  • A composite waterproof layer for environmental engineering and its preparation and construction method
  • A composite waterproof layer for environmental engineering and its preparation and construction method
  • A composite waterproof layer for environmental engineering and its preparation and construction method

Examples

Experimental program
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Effect test

Embodiment 1

[0092] Embodiment 1. Lay composite geomembrane (two cloths and one film, one cloth and one film, etc.) at the bottom of the building. After the lap joints are processed, lay non-woven fabrics at the lap joints, and then apply hand brushing material , and then spray quick-setting rubber asphalt waterproof coating on a small area of ​​the lap joints. After all the lap joints are sprayed, spray a large area on the surface of the composite geomembrane as a whole. The spray thickness varies according to the design.

Embodiment 2

[0093] Example 2. Lay natural sodium bentonite waterproof blanket on the bottom of the building. After the lap joints are processed, lay non-woven fabric on the lap joints, then apply hand brush material, and then spray the lap joints on a small area , after all the lap joints are sprayed, spray liquid rubber paint on the surface of the natural sodium bentonite waterproof blanket as a whole, and the spray thickness varies according to the design.

Embodiment 3

[0094] Embodiment 3, paving polymer sheets (related materials such as HDPE, LDPE, LLDPE, EVA) at building bottom, lap seam will carry out lap seam processing by the requirement of construction norms, then at lap seam position and high The entire surface of the molecular sheet is sprayed with quick-setting rubber asphalt waterproof coating. After curing, a complete composite coating is formed.

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Abstract

The invention provides a composite waterproof layer for environmental engineering and a preparing and constructing method thereof. The preparing and constructing method comprises the steps that polymer waterproof sheets are laid on and attached to the surface of an environmental engineering building, and lap joint seam processing is conducted between the adjacent polymer waterproof sheets in a glue bonding or welding or lap joint mode; the lap joint seam parts of the polymer waterproof sheets are provided with non-woven fabric in a laying and attaching mode or is coated with hand brush materials; first layers of rapid hardening rubber asphalt waterproof coatings are sprayed on the lap joint seam parts, and the rapid hardening rubber asphalt waterproof coatings are rapid hardening polymer emulsion state waterproof coatings formed by emulsified asphalt, a polymer rubber modifier and an additive in an emulsification crosslinking mode, a second layer of rapid hardening rubber asphalt waterproof coating is integrally sprayed on the surfaces of the poly waterproof sheets.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to a method for preparing and constructing a composite waterproof layer for environmental engineering, and a composite waterproof layer for environmental engineering. Background technique [0002] As a new type of material, geosynthetics have the characteristics and functions that can be processed according to the needs of actual engineering. , swimming pools, housing construction, underground buildings, garbage dumps, environmental engineering and other aspects as anti-seepage, leak-proof, moisture-proof materials. Developed countries have widely used this technology since the 1930s, and my country has gradually promoted the use of geomembrane composite materials in various projects since the 1980s. [0003] Bentonite waterproof blanket is a commonly used geosynthetic material, but in the construction application of geosynthetics, it is very difficult to deal with the lap joints...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D31/02B32B37/00B32B38/00B32B11/04
CPCE02D31/02E02D31/025E02D2450/106E02D2450/108
Inventor 罗莹莹李晓亮黄金星
Owner YUGREAT (BEIJING) INTERNATIONAL TECHNOLOGY CO LTD
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