A foamed cement insulation material

A technology of thermal insulation materials and foamed cement, which is applied in the field of foamed cement thermal insulation materials, can solve the problems of high water absorption rate of foamed cement, and achieve the effects of improving compressive strength and anti-seepage performance, improving anti-seepage performance, and making the strength not easy to crack

Active Publication Date: 2022-05-27
山东威汉新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem of high water absorption rate of foamed cement prepared by the current chemical foaming method, the present invention provides a foamed cement insulation material, which can increase the closed cell rate when chemical foaming is used to prepare foamed cement, and effectively reduce the water absorption rate of the product

Method used

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  • A foamed cement insulation material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1 Preparation of foamed cement insulation material

[0024] Hydrogen peroxide, fatty alcohol polyoxyethylene ether, sodium dodecyl benzene sulfonate and tapioca starch are prepared into a composite foaming agent according to a mass ratio of 10:1:0.5:2;

[0025] SILRES Powder D silane water repellent and aluminum potassium sulfate dodecahydrate are formulated into a water repellent in a mass ratio of 0.2:1;

[0026] Weigh the raw materials according to the following parts by weight to prepare foamed cement insulation materials: 35 parts of 42.5-strength ordinary Portland cement, 5 parts of aluminate cement, 0.1 part of PCA-I polycarboxylate superplasticizer (Subote), compound 5 parts of foaming agent, 0.5 part of waterproofing agent, and the water-to-binder ratio is 0.60;

[0027] Prepare foamed cement insulation material according to the following preparation method:

[0028] (1) Add some water to the cement and mix well, then add admixtures and mix well;

[...

Embodiment 2

[0033] Example 2 Preparation of foamed cement insulation material

[0034] Hydrogen peroxide, fatty alcohol polyoxyethylene ether, sodium dodecyl benzene sulfonate and tapioca starch are prepared into a composite foaming agent according to a mass ratio of 10:1:0.5:2;

[0035] SILRES Powder D silane water repellent and aluminum potassium sulfate dodecahydrate are formulated into a water repellent in a mass ratio of 0.2:1;

[0036] Weigh the following raw materials by weight to prepare foamed cement insulation materials: 30 parts of 42.5-strength ordinary Portland cement, 5 parts of aluminate cement, 5 parts of fly ash (average loss on ignition 3.18%), 5 parts of PCA-I polymer 0.2 part of carboxylate water reducing agent (Subote), 5 parts of composite foaming agent, 0.5 part of waterproofing agent, and the water-to-binder ratio is 0.60;

[0037] Prepare foamed cement insulation material according to the following preparation method:

[0038] (1) Add some water to cement and fl...

Embodiment 3

[0042] Example 3 Preparation of foamed cement insulation material

[0043] Hydrogen peroxide, fatty alcohol polyoxyethylene ether, sodium dodecyl benzene sulfonate and tapioca starch are prepared into a composite foaming agent according to the mass ratio of 10:1:1:2;

[0044] SILRES Powder D silane water repellent and aluminum potassium sulfate dodecahydrate are formulated into a water repellent in a mass ratio of 0.4:1;

[0045] Weigh the raw materials according to the following parts by weight to prepare foamed cement insulation materials: 35 parts of 42.5-strength ordinary Portland cement, 5 parts of aluminate cement, 10 parts of fly ash (average loss on ignition 4.03%), FDN-I naphthalene System-fatty acid composite water reducing agent 0.4 parts, composite foaming agent 5 parts, waterproofing agent 2 parts, water-to-binder ratio 0.65;

[0046] Prepare foamed cement insulation material according to the following preparation method:

[0047] (1) Add some water to cement an...

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Abstract

The invention provides a foamed cement insulation material, which comprises the following raw materials in weight percentage: 30-55% of cement, 0.1-1% of admixture, 1-5% of composite foaming agent, and the balance is water. The cement is composed of Portland cement and aluminate cement in a mass ratio of 5-10:1. The composite blowing agent is composed of hydrogen peroxide, fatty alcohol polyoxyethylene ether, sodium dodecylbenzenesulfonate and tapioca starch in a mass ratio of 10:1-2:0.5-1:1-2. The foamed cement insulation material of the invention has good waterproof and anti-seepage properties, high strength and is not easy to crack, and can be widely used in building materials to play the role of heat insulation.

Description

technical field [0001] The invention belongs to the technical field of building energy saving, and particularly relates to a foamed cement thermal insulation material. Background technique [0002] Foamed cement insulation board is the most ideal insulation material for wall insulation and wall insulation fire isolation belt. It has low thermal conductivity, good insulation effect, no burning, waterproof, strong adhesion to the wall, high strength, and no toxicity. Radioactive material, environmentally friendly. Concurrent with the service life of the building, and the construction is simple and fast. [0003] The foaming method of foamed cement generally uses chemical reaction to foam. Chemical foaming is that after adding a foaming agent (liquid / powdered solid) into the cement slurry for stirring, a chemical reaction occurs and gas is released to continuously expand the volume of the cement, and the expansion effect reaches the pre-formulated state to form foamed cement....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/06C04B38/02C04B38/10C04B40/02C04B24/38C04B24/42C04B103/42C04B103/65C04B22/14C04B22/06C04B24/32C04B24/20C04B111/27
CPCC04B28/06C04B38/02C04B38/10C04B40/0039C04B40/024C04B2103/42C04B2103/65C04B2111/27C04B2201/50C04B7/02C04B2103/302C04B18/08C04B38/0074C04B22/068C04B24/32C04B24/20C04B24/38C04B24/42C04B22/148Y02B30/90
Inventor 耿聪英王奕丁
Owner 山东威汉新材料有限公司
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