Construction method of bentonite waterproof blankets

A technology of bentonite waterproof blanket and construction method, which is applied in basic structure engineering, protection device, construction and other directions to achieve the effects of simple installation, strong water resistance and fast speed

Inactive Publication Date: 2010-06-23
HENAN GUOJI CONSTR GRP
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  • Abstract
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  • Claims
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  • Construction method of bentonite waterproof blankets
  • Construction method of bentonite waterproof blankets
  • Construction method of bentonite waterproof blankets

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[0039] Example 1: The construction method of the bentonite waterproof blanket of the present invention, the main steps are as follows:

[0040] (1) Base surface treatment

[0041] Base surface treatment should be carried out before paving / hanging, including treatment of base surface leakage and base surface flatness treatment.

[0042] 1. The control of base surface leakage should meet the following requirements:

[0043] The laid base layer should be rigid, such as concrete or cement mortar. The strength grade of concrete should not be less than C15, and the strength grade of cement mortar should not be less than M7.5. After treatment, the base surface is allowed to be wet, but there must be no water leakage or linear flow;

[0044] The treatment of base surface leakage should focus on plugging. If it is difficult to plug, temporary drainage and drainage measures can be adopted. The temporary drainage pipes used should be embedded in the groove or directly fixed on the base surface, ...

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Abstract

The present invention relates to a construction method of bentonite waterproof blankets. The method comprises the steps of processing a base plane, paving waterproof blankets, processing lapped seams, protecting and connecting swing ends, folding ends, processing empty bumps, etc. The waterproof blankets are naturally lapped during the lapped seam processing, the lapped width is not smaller than 100mm, and the lapped seams can not be arranged in corners. The allowed length of the swing ends of the waterproof blankets is 200mm to 400mm longer than the allowed length of reinforcing steel bars, and is from 500mm to 800mm. The ends are lined and sealed by edgings. Facade swing ends and plane swing ends are temporarily protected. The swing ends are folded, sealed and fixed when the waterproof blankets are paved to the facade top. The construction method has the advantages of reasonable technique, permanent waterproofing, simple method, labour and material saving, long service life, long structure, secondary waterproof properties, capability of forming active water-proof system, low construction cost, high efficiency and broad application range. The present invention is suitable for various water-proof requirements of underground waterproof engineering.

Description

1. Technical field: [0001] The invention relates to a building material construction method, in particular to a construction method of a bentonite waterproof blanket. 2. Background technology: [0002] The mineralogy name of bentonite is montmorillonite, commonly known as Guanyin soil. It is a hydrous clay mineral mainly composed of montmorillonite. Because of its special properties, such as swelling, cohesiveness, adsorption, catalytic, thixotropy, Suspension and cation exchange properties, etc., also known as "universal soil". [0003] Bentonite is one of the minerals with the strongest crystal structure variation among clay minerals. The slow scanning of diffractometer shows that the particle size of montmorillonite is close to the nanometer level. Compactness, permanent waterproofness, easy construction, environmental protection and other properties are more and more widely used in waterproofing. [0004] High Density Polyethylene, the English name is "High Density Pol...

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Application Information

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IPC IPC(8): E02D31/02
Inventor 生聚山朱国防周忠义彭建新闫文中过效杰唐峥赵艳军
Owner HENAN GUOJI CONSTR GRP
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