Foam cement insulation material for exterior wall and preparation method thereof

A technology of foamed cement and thermal insulation materials, which is applied in the field of thermal insulation materials for buildings, can solve the problems of quality deterioration, wall peeling, short service life, etc., and achieve the effects of early strength improvement, strength improvement and high cost.

Inactive Publication Date: 2013-02-27
刘巧玲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing foamed cement exterior wall insulation materials only use sulphoaluminate cement system or Portland cement system alone when selecting ceme

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] Example 1

[0023] A foamed cement thermal insulation material for external walls. The raw material is ordinary Portland cement: sulphoaluminate cement: fly ash: silica fume: expansion agent: coagulation accelerator: tackifier: waterproofing agent: foaming agent :Foam stabilizer: Fiber: Water in parts by weight 100:30:50:10:10:1:2:5:11:3:1.8:105.

[0024] The accelerator enhancer is lithium silicate.

[0025] The water-repellent agent is silicone; the water-reducing agent is polycarboxylic acid or naphthalene-based water-reducing agent; the foaming agent is hydrogen peroxide, which is a commercially available conventional hydrogen peroxide; the foam stabilizer is gum arabic or Sodium dodecyl sulfonate; the fiber is polyvinyl alcohol (PVA) fiber or polypropylene (PP) fiber.

[0026] The preparation method of the foamed cement insulation material for external walls includes the following steps:

[0027] (1) First, dry-mix ordinary Portland cement, sulfoaluminate cement, fly ash, ...

Example Embodiment

[0029] Example 2

[0030] A foamed cement thermal insulation material for external walls. The raw material is ordinary Portland cement: sulphoaluminate cement: fly ash: silica fume: expansion agent: coagulation accelerator: tackifier: water reducing agent: waterproofing agent : Foaming agent: foam stabilizer: fiber: water in parts by weight 80:32:32:8:8:1.6:1.6:0.5:3:8:1.6:2.0:80.

[0031] The coagulation accelerator is a mixture of lithium silicate and sodium silicate, wherein the mass fraction of lithium silicate is 20%.

[0032] The water-repellent agent is silicone; the water-reducing agent is a polycarboxylic acid water-reducing agent; the foaming agent is hydrogen peroxide, which is commercially available conventional hydrogen peroxide; the foam stabilizer is gum arabic or dodecane Sodium sulfonate; the fiber is polyvinyl alcohol (PVA) fiber or polypropylene (PP) fiber.

[0033] The preparation method of the foamed cement insulation material for external walls includes the foll...

Example Embodiment

[0036] Example 3

[0037] A foamed cement thermal insulation material for external walls. The raw material is ordinary Portland cement: sulphoaluminate cement: fly ash: silica fume: expansion agent: accelerating enhancer: tackifier: waterproofing agent: foaming agent :Foam stabilizer: Fiber: Water in parts by weight 100:30:50:10:10:1:2:5:9:3:2:100.

[0038] The coagulation accelerator is a mixture of lithium silicate and potassium silicate, wherein the mass fraction of lithium silicate is 10%-50%.

[0039] The water-repellent agent is silicone; the water-reducing agent is polycarboxylic acid or naphthalene-based water-reducing agent; the foaming agent is hydrogen peroxide, which is a commercially available conventional hydrogen peroxide; the foam stabilizer is gum arabic or Sodium dodecyl sulfonate; the fiber is polyvinyl alcohol (PVA) fiber or polypropylene (PP) fiber.

[0040] The preparation method of the foamed cement insulation material for external walls includes the following ...

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PUM

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Abstract

The invention belongs to the technical field of insulation material for building, and particularly relates to a foam cement insulation material for exterior wall and a preparation method thereof. The foam cement insulation material for exterior wall is prepared from raw materials comprising ordinary portland cement, sulphoaluminate cement, fly ash, silica fume, an expansive agent, a coagulating enhancer, a tackifier, a water-reducing agent, a waterproofing agent, a foaming agent, a foam stabilizer, fiber and water. The preparation method comprises the following steps: (1) first conducting dry mixing on ordinary portland cement, sulphoaluminate cement, fly ash, silica fume and the expansive agent, adding coagulating enhancer, tackifier, water-reducing agent, waterproofing agent, foam stabilizer, water and fiber, and stirring to obtain a slurry; and (2) adding the foaming agent in the slurry, and filling the foamed slurry into a mold. The foam cement insulation material for exterior wall has good fire resistance, long service life, good insulation property, light weight, high strength, low water absorption and good crack resistance.

Description

technical field [0001] The invention belongs to the technical field of thermal insulation materials for buildings, and in particular relates to a foamed cement thermal insulation material for exterior walls and a preparation method thereof. Background technique [0002] Exterior wall insulation is an important link in building energy-saving projects. At present, the lightweight insulation materials used in exterior wall insulation projects are mainly organic insulation materials represented by polystyrene foam. Although organic insulation materials are light in weight and have low thermal conductivity , the thermal insulation effect is good, but the fire resistance is poor, there is a serious fire hazard, and the weather resistance is poor, and the life span is not the same as that of the building. [0003] The hard porous inorganic thermal insulation materials currently on the market are unstable, have uneven pore formation, low porosity, high thermal conductivity and low s...

Claims

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Application Information

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IPC IPC(8): C04B38/02C04B28/06
Inventor 刘巧玲王崇杰贾立群薛一冰管振忠
Owner 刘巧玲
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