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Spray coating rigid foam polyurethane water-proof fireproof heat-preserving wall as well as construction method thereof

A kind of rigid foam polyurethane, fireproof and thermal insulation technology, applied in building thermal insulation materials, walls, building components and other directions, can solve the problems of poor waterproof and thermal insulation of walls, and achieve the effects of good filling, light weight and crack reduction.

Inactive Publication Date: 2008-08-27
JIANGSU NIGAO SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The first object of the present invention is to provide a sprayed hard foam polyurethane waterproof, fireproof and thermal insulation wall with light weight and good integrity, so as to solve the problem of poor waterproof and thermal insulation of the entire wall caused by the uneven surface of the sprayed rigid polyurethane thermal insulation layer

Method used

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  • Spray coating rigid foam polyurethane water-proof fireproof heat-preserving wall as well as construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] a. Prepare rigid foam polyurethane raw materials, raw materials for inorganic lightweight aggregate cement mortar, interface agent matching rigid foam polyurethane, alkali glass fiber mesh cloth, flexible putty or polyurea waterproof coating or polymer cement waterproof coating, exterior Wall paint or face brick or stone and various construction tools and equipment (the above materials and equipment are general products in the construction industry and can be purchased from the market), spare;

[0028] b. Preparation of inorganic lightweight aggregate cement mortar:

[0029] Weigh the raw materials of inorganic lightweight aggregate cement mortar according to the following formula: cement 15%-30%, sand 40%-60%, inorganic lightweight aggregate 10%-25%, redispersible rubber powder 1.0%-3.0 %, cellulose ether 0.05%~0.3%, microfoam agent 0.02%~0.05%, thickener 0.2%~1.5%, lignocellulose 0.1%~0.2%, modified bentonite or attapulgite 1%~2% , the above are percentages by weight...

Embodiment 2

[0042] Basically the same as Example 1, the difference is: the formula of the inorganic lightweight aggregate cement mortar in the step b is mixed with chopped polypropylene fibers, thereby increasing the crack resistance of the leveling anti-crack layer 5, in the formula , the chopped polypropylene fibers mixed in account for up to 0.2% (weight), and the specific amount of mixing can be determined according to the building cost and quality requirements;

Embodiment 3

[0044] Basically the same as Example 1, the difference is: the formula of the inorganic lightweight aggregate cement mortar in step b is mixed with one or both of silica fume or fly ash, thereby reducing the amount of inorganic lightweight aggregate The dry density of cement mortar improves the construction performance and increases the thermal insulation effect of the wall. In the formula, the silica fume mixed in is at most 5% (weight), and the fly ash is at most 15% (weight). The specific mixing amount can be According to the building cost, quality requirements and source of raw materials;

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Abstract

The invention relates to a sprayed rigid foam polyurethane waterproof fireproof heat insulation wall and a construction method thereof. The structure of a composite layer of the wall from the inside to the outside in order is as follows: a base course wall (1), an interfacial agent plugging lower layer (2), a sprayed rigid foam polyurethane waterproof heat insulation layer (3), an interfacial agent seal course (4), an inorganic lightweight aggregate cement mortar screeding cracking resistant layer (5) which is buried with alkali-resistant glass fiber gridding cloth (6), a flexible waterproof layer (7) and a finishing coat (8), which are solidified into a whole, wherein, the dry powder of the inorganic lightweight aggregate cement mortar contains inorganic lightweight aggregate (one or the mixture of expanded vermiculite, obturator perlite or pumice) with 10-25 weight percent and the grain diameter less than or equal to 1 mm. The wall of the invention has light self-weight and good integrity, and solves the problem of bad waterproof heat insulation of the whole wall due to the rugged surface of the sprayed rigid foam polyurethane heat insulation layer. The construction method is easy to operate and low in cost.

Description

technical field [0001] The invention relates to a waterproof, fireproof and thermal insulation wall body sprayed with rigid foam polyurethane and a construction method thereof. Background technique [0002] At present, most of the current waterproof materials and thermal insulation materials in my country have single performance, and cannot take into account both waterproof and thermal insulation performances. Moreover, building waterproofing projects and building energy-saving projects are constructed separately, with cumbersome construction procedures and unstable quality. Existing thermal insulation and waterproof material is rigid polyurethane foam. But, because the foaming process of polyurethane is irregular, therefore, it is difficult to obtain the hard foam polyurethane thermal insulation layer with flat and smooth surface, especially the hard foam polyurethane thermal insulation layer sprayed on site. If the plastering mortar commonly used in batch plastering const...

Claims

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Application Information

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IPC IPC(8): E04B2/00E04B1/62E04F13/00C04B28/00C04B14/06
Inventor 张菁燕杨江金刘小泉
Owner JIANGSU NIGAO SCI & TECH
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