Core-shell foamed concrete insulating brick and preparation method thereof
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A technology of insulating bricks and concrete, which is applied in the field of building materials, can solve the problems of poor impact resistance and poor durability, and achieve the effects of stable product quality, good wind pressure resistance, and easy promotion
Active Publication Date: 2015-01-28
GUANGXI HONGFA BUILDING MATERIALS TECH
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[0004] The purpose of the present invention is to provide a core foamed concrete insulation brick, so as to overcome the disadvantages of poor impact and relatively poor durability of existing insulation bricks
Method used
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Embodiment 1
[0022] A method for preparing core foamed concrete insulation brick, is characterized in that, comprises the following steps:
[0023] (1) prepare hollow brick, described hollow brick is cement hollow brick, after the cement hollow brick is poured into molding, it is standby;
[0024] (2) prepare cement foam material;
[0025] a. Stir 150 parts of water and 30 parts of cement in proportion at a speed of 40 to 50 rpm to form a slurry;
[0026] b. Mix 1 part of naphthalenesulfonate formaldehyde condensate, 1 part of calcium chloride, 0.5 part of aluminum sulfate, 0.1 part of sodium stearate, 20 parts of hydrogen peroxide, and 1 part of sodium sulfate to prepare a foam solution;
[0027] c. Add the foam liquid prepared in step b to the slurry prepared in step a, and stir for 10 to 15 seconds under the condition of a rotating speed of 40 to 50 rpm to obtain a cement foam material;
[0028] (3) Preparing thermal insulation bricks, filling the cement foam material obtained in step...
Embodiment 2
[0030] A method for preparing a core foamed concrete insulation brick, other production steps are the same as in Example 1, and the cement foam material used is: 40 parts of cement, 2 parts of naphthalenesulfonate formaldehyde condensate, 2 parts of calcium chloride, 1 part of aluminum sulfate, 1 part of sodium stearate, 25 parts of hydrogen peroxide, 2 parts of sodium sulfate, and 200 parts of water.
Embodiment 3
[0032] A method for preparing core foamed concrete insulation bricks, other production steps are the same as in Example 1, the cement foaming material used is: 36 parts of cement, 2 parts of naphthalenesulfonate formaldehyde condensate, 1 part of calcium chloride, 1 part of aluminum sulfate, 0.5 parts of sodium stearate, 20 parts of hydrogen peroxide, 2 parts of sodium sulfate, and 180 parts of water.
[0033] The following is the product test data
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Abstract
The invention discloses a core-shell foamed concrete insulating brick which comprises a hollow brick used as a brick shell and a cement foamed material filled in the brick cavity. The cement foamed material comprises the following components in parts by weight: 30-40 parts of cement, 1-2 parts of water reducing agent, 1-2 parts of calcium chloride, 0.5-1 part of aluminum sulfate, 0.1-1 part of foam stabilizer, 20-25 parts of oxydol, 1-2 parts of sodium sulfate and 150-200 parts of water. The cement foamed material and hollow brick body can be well cured and solidified together, thereby ensuring the enduring combination firmness. The insulating brick has the characteristics of high durability, favorable wind pressure resistance, favorable impact resistance and high compression strength. The insulating brick has the advantages of excellent heat insulating property, excellent sound insulation effect, light weight, compression resistance and the like. The method for preparing the insulating brick has the advantages of no need of autoclave curing, small equipment investment and simple technique, and is simple to operate and convenient for popularization; and the produced product has stable quality.
Description
technical field [0001] The invention relates to the field of building materials, in particular to a core foam concrete insulation brick and a preparation method thereof. Background technique [0002] With the popularization of building energy saving and the continuous improvement of people's demand for the comfort of living environment, thermal insulation materials have been paid more and more attention by people. Existing thermal insulation composite bricks or blocks mainly include multiple forms such as inlaying thermal insulation materials, setting thermal insulation interlayers, thermal insulation holes, and trenches. As one of the thermal insulation materials for houses, non-fired foamed bricks at room temperature are more and more popular because of their thermal insulation, sound insulation, fire prevention, and strength superior to traditional thermal insulation materials. However, the foamed bricks in the existing market have disadvantages such as poor impact resis...
Claims
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