Thick plastered exterior wall outer heat-insulation system with double-layer gridding cloth compounded with foam cement boards

A technology for external thermal insulation of external walls and foamed cement boards, which is applied in the field of building thermal insulation materials, can solve the problems of large size deviation, large seams, and difficult grinding of foamed cement boards, so as to improve wind pressure resistance and enhance system safety. Effect

Inactive Publication Date: 2013-09-04
JIANGSU NIGAO SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the backward production equipment of the composite foamed cement board, especially the low precision of the cutting equipment, the size deviation of the foamed cement b

Method used

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  • Thick plastered exterior wall outer heat-insulation system with double-layer gridding cloth compounded with foam cement boards
  • Thick plastered exterior wall outer heat-insulation system with double-layer gridding cloth compounded with foam cement boards

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The caulking and leveling insulation material consists of 570 parts of ordinary Portland cement, 125 parts of Class I fly ash, 320 parts of lightweight aggregate, 5 parts of methyl hydroxypropyl cellulose ether, 0.3 part of starch ether, and 10 parts of redispersible latex powder 1 part, 3 parts of fiber with a diameter of 6 mm, among which, the lightweight aggregate is made by mixing 70 mesh vitrified microspheres and floating beads according to the weight ratio of 2:1.

Embodiment 2

[0044] The caulking and leveling insulation material consists of 600 parts of Portland cement, 150 parts of Class I fly ash, 350 parts of lightweight aggregate, 6 parts of methyl hydroxypropyl cellulose ether, 0.5 part of starch ether, 20 parts of redispersible latex powder, It is made of 3 parts of fiber with a diameter of 4 mm, and the lightweight aggregate is made of 50 mesh vitrified microspheres and floating beads in a weight ratio of 2:1.

Embodiment 3

[0046] The caulking and leveling insulation material consists of 450 parts of ordinary Portland cement, 100 parts of Class I fly ash, 300 parts of lightweight aggregate, 4 parts of methyl hydroxypropyl cellulose ether, and 5 parts of redispersible latex powder, with a diameter of 8 It is made of 2 parts of mm fiber, and the lightweight aggregate is made by mixing 60 mesh vitrified microspheres and floating beads according to the weight ratio of 3:2.

[0047] Table 1 shows the physical performance testing indexes of the gap-filling and leveling insulation materials prepared in Implementation 1-Example 3.

[0048] Table 1

[0049] project unit Example 1 Example 2 Example 3 Thermal Conductivity W / (m·k) 0.72 0.85 0.68 Compressive strength MPa 1.0 1.5 0.9 tensile strength MPa 0.15 0.15 0.15 Water absorption (V / V) % 6.0 6.0 7 Softening coefficient - 0.85 0.90 0.82

[0050] Implementation 1-Example 3 The gap-filli...

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Abstract

The invention discloses a thick plastered exterior wall outer heat-insulation system with double-layer gridding cloth compounded with foam cement boards. The thick plastered exterior wall outer heat-insulation system comprises an interface layer, a leveling layer, an adhesion mortar layer, a heat-insulation layer with the foam cement boards, an anti-crack protective layer with the inlaid double-layer gridding cloth and a finishing layer. The interface layer, the leveling layer, the adhesion mortar layer, the heat-insulation layer with the foam cement boards, the anti-crack protective layer with the inlaid double-layer gridding cloth and the finishing layer are sequentially fixedly connected with one another from the inside to the outside on the basis of a base-layer wall, joint filling and leveling heat-insulation materials are embedded in gaps of the foam cement boards in the heat-insulation layer with the foam cement boards, and the anti-crack protective layer with the inlaid double-layer gridding cloth comprises first gridding cloth, anchoring parts, second gridding cloth and three layers of anti-crack mortar. The thick plastered exterior wall outer heat-insulation system has the advantages that common quality problems of plate marks, anchor bolt marks, cracks and the like of a thin plastered system can be solved, the anchoring parts are assuredly positioned on the outer side of the gridding cloth, performance indexes of the wind load resistance, water absorption, impact resistance and the like of the outer heat-insulation system are increased, and the safety of the system is improved.

Description

technical field [0001] The invention relates to the field of building thermal insulation materials, in particular to an external thermal insulation system of a double-layer grid cloth composite foamed cement board thick plastered external wall. Background technique [0002] Composite foamed cement board is one of the few undisputed A-grade fireproof and thermal insulation materials with complete certificates on the market. It has the advantages of high strength, light weight, thermal insulation, and service life synchronized with buildings, especially suitable for summer heat. Use in cold winter areas. [0003] However, due to the backward production equipment of the composite foamed cement board, especially the low precision of the cutting equipment, the size deviation of the foamed cement board is relatively large. Foam cement board thinly plastered external wall external insulation system is prone to common quality problems such as board marks, anchor bolt marks, and cra...

Claims

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Application Information

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IPC IPC(8): E04B1/76E04B1/92
Inventor 钱中秋周永峰徐建军吴红英孙寅斌
Owner JIANGSU NIGAO SCI & TECH
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