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Special foam concrete for exterior wall external thermal insulation system engineering

A foamed concrete and external wall thermal insulation technology is applied in the field of building material engineering to achieve the effects of good wettability, improved crack resistance and good flexibility

Inactive Publication Date: 2018-07-24
SHAANXI ACAD OF ARCHITECTONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems existing in the external thermal insulation system of the external wall of the building, the present invention provides a special foam concrete used in the external thermal insulation system engineering of the external wall; Cast-in-place construction

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] This embodiment relates to a special foam concrete used in external wall insulation system engineering, which is composed of the following components in parts by weight: 100 parts of cementitious material, 50 parts of admixture, 5 parts of high molecular polymer, fiber 1 part, 1 part foaming agent, 12 parts admixture, 75 parts water.

[0019] Wherein, the cementitious material is ordinary Portland cement.

[0020] Wherein, the admixture is fly ash.

[0021] Wherein, the high molecular polymer is rubber powder.

[0022] Wherein, the fiber is carbon fiber.

[0023] Wherein, the foaming agent is an animal protein foaming agent.

[0024] Wherein, the admixture weighs the raw materials according to the following composition composition by weight: 1.5 parts of water reducer, 8 parts of expansion agent, 0.5 parts of activator, and 2 parts of coagulation accelerator.

Embodiment 2

[0026] This embodiment relates to a special foam concrete used in external wall insulation system engineering, which is composed of the following components in parts by weight: 100 parts of cementitious material, 40 parts of admixture, 8 parts of high molecular polymer, fiber 1.5 parts, 0.8 parts of blowing agent, 6.2 parts of admixture, 50 parts of water.

[0027] Wherein, the cementitious material is aluminate cement.

[0028] Wherein, the admixture is silica fume.

[0029] Wherein, the high molecular polymer is latex.

[0030] Wherein, the fiber is polypropylene fiber.

[0031] Wherein, the foaming agent is a vegetable protein foaming agent.

[0032] Wherein, the admixture weighs the raw materials according to the following composition composition by weight: 0.8 parts of water reducer, 2 parts of coagulation accelerator, 3 parts of viscosity reducer, and 0.4 part of activator.

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PUM

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Abstract

The invention provides a special foam concrete for exterior wall external thermal insulation system engineering. The special foam concrete comprises the following components in parts by weight: 100 parts of a cementing material, 0-50 parts of an admixture, 2-10 parts of a high polymer, 0.5-2 parts of fiber, 2-10 parts of a foaming agent and 2-15 parts of an additive. According to the special foamconcrete provided by the invention, other components are introduced into the common foam concrete, so that the special foam concrete has the characteristics of good fluidity, crack resistance, light weight, good affinity with a thermal insulation material, high bonding strength, adjustable setting time, function of repairing defects of a base wall, and the like, and the special foam concrete is filled between the insulation board and the base wall to play the role of bonding and repairing.

Description

technical field [0001] The invention relates to the field of building material engineering, in particular to a special foam concrete used for external wall thermal insulation system engineering. Background technique [0002] At present, the external thermal insulation construction technology of building exterior walls mainly adopts the pasting method. The construction of the pasting method is greatly affected by human factors, and the quality of the project is difficult to guarantee. And the pasting methods are mostly point sticking or point frame sticking, which makes the thermal insulation system have cavities. Under the effects of wind pressure load and climate change, the thermal insulation system has cracked and fallen off, which affects the thermal performance of the building envelope and the safety of the main structure. Contents of the invention [0003] Aiming at the problems existing in the external thermal insulation system of the external wall of the building, ...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B28/06C04B28/14C04B28/10C04B38/10C04B111/40
CPCC04B28/04C04B28/06C04B28/10C04B28/14C04B2111/40C04B18/08C04B2103/0045C04B14/386C04B24/14C04B2103/302C04B2103/0068C04B2103/12C04B2103/10C04B38/10C04B18/146C04B16/0633
Inventor 黄沛增张肖明程鹏任普亮贾忠奎刘力林
Owner SHAANXI ACAD OF ARCHITECTONICS