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Foam concrete, preparation method thereof and composite material

A technology of foam concrete and compound foaming agent, which is applied in the field of integrated sanitary ware, and can solve problems such as poor load bearing, insufficient foam stability, and low compressive strength

Inactive Publication Date: 2021-01-15
GUANGDONG BOZHILIN ROBOT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantages of foam concrete are also obvious. Its generally low compressive strength and poor load-bearing limit its application in integrated bathroom wall panels.
Moreover, the foam stability of the existing common foaming agent is insufficient, and the prepared foamed concrete usually has a poor pore structure and a large water absorption rate, and it is difficult to meet the performance requirements of the base material

Method used

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  • Foam concrete, preparation method thereof and composite material
  • Foam concrete, preparation method thereof and composite material
  • Foam concrete, preparation method thereof and composite material

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0072] A preparation method of foam concrete, comprising the following steps:

[0073] Mix composite foaming agent and propenyl ether copolymer, stir at 100r / min±10r / min for 30s±5s, and prepare dispersion B;

[0074] Mix fly ash and cement, stir at 30r / min±5r / min for 30s±5s, add the dispersion B, stir at 30r / min±5r / min for 120s-300s, then add silane-based water repellent, 30r / min± Stirring at 5r / min for 120s-200s;

[0075] The parts by weight of the cement are 621 parts-750 parts; the parts by weight of the fly ash are 212 parts-280 parts; the parts by weight of the composite blowing agent are 30 parts-70 parts; the parts by weight of the silane The parts by weight of the base water repellent are 20-45 parts; the parts by weight of the propylene-based copolymer are 35-65 parts.

[0076] The preparation method solves the problem of high water absorption rate of the foamed concrete, makes the foamed concrete have water-repelling properties, has a waterproof effect, and is also...

Embodiment 1

[0087] This embodiment provides a kind of foam concrete and its preparation method and composite material, and the steps are as follows:

[0088] 1) Preparation of sunflower protein foaming agent and composite foaming agent

[0089] At 85°C, mix 400 mL of an aqueous solution of sunflower powder with a mass fraction of 10% and 100 mL of an aqueous solution of sodium bisulfite with a mass fraction of 1%, stir and hydrolyze for 3 hours to prepare a sunflower protein mother liquid foaming agent;

[0090] Mix the foaming agent of the sunflower protein mother solution and β-cyclodextrin, the weight of the β-cyclodextrin accounts for 0.2% of the weight of the foaming agent of the sunflower protein mother solution to obtain the foaming agent of the sunflower protein.

[0091] Mix the sunflower protein foaming agent with the saponin type foaming agent at a mass ratio of 2:1 to obtain a composite foaming agent.

[0092] 2) Preparation of silane-based water repellent

[0093] In parts ...

Embodiment 2

[0104] This embodiment provides a kind of foamed concrete and its preparation method and composite material, which is basically the same as the method in Example 1, the only difference is that the amount of raw materials for preparing foamed concrete is different, the amount of raw materials for sunflower protein foaming agent is different, and the silane-based hydrophobic The amount of raw materials of the agent is different, and the steps are as follows:

[0105] 1) Preparation of sunflower protein foaming agent and composite foaming agent

[0106] At 85°C, mix 450 mL of an aqueous solution of sunflower powder with a mass fraction of 10% and 350 mL of an aqueous solution of sodium bisulfite with a mass fraction of 1%, stir and hydrolyze for 3 hours to prepare a sunflower protein mother liquid foaming agent;

[0107] Mix the foaming agent of the sunflower protein mother solution and β-cyclodextrin, the weight of the β-cyclodextrin accounts for 0.2% of the weight of the foamin...

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Abstract

The invention relates to foam concrete, a preparation method thereof and a composite material. The foam concrete is prepared from the following raw materials in parts by weight: 621-750 parts of cement; 212-280 parts of fly ash; 30-70 parts of a composite foaming agent; 20-45 parts of a silane-based water repellent; and 35-65 parts of a propenyl ether copolymer. The foam concrete has the characteristics of light weight, high strength, fire resistance and hydrophobicity. The composite material can stabilize the dry density even in a range of 300kg / m<3> to 500kg / m<3>, and meanwhile, the compressive strength of 3MPa to 5MPa is achieved.

Description

technical field [0001] The invention relates to the technical field of integrated sanitary ware, in particular to foamed concrete, its preparation method and composite material. Background technique [0002] The wall boards of the existing integrated sanitary ware are mainly SMC (glass fiber reinforced plastic) boards and color steel plate systems. However, the hollow feeling of the SMC board is obvious, and the scratch resistance of the color steel plate is poor. Both of them also have the disadvantages of poor sound insulation performance and poor residential user experience. [0003] At present, there are research reports that aluminum honeycomb wall panels or calcium silicate wall panels are used in integrated bathrooms with ceramic tile finishes. However, aluminum honeycomb siding still has hollowing and scratches, while calcium silicate siding has a high water absorption rate, is heavy, and is not easy to handle on site. [0004] Foamed concrete, also known as foamed...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B38/10E04B1/94E04B1/66B28B1/14B28B23/02B28C5/00C04B111/27C04B111/40
CPCC04B28/04E04B1/66E04B1/945B28C5/003B28B23/02B28B1/14C04B2111/27C04B2111/40C04B18/08C04B24/121C04B24/14C04B24/10C04B24/42C04B24/32C04B38/10
Inventor 王洪松何涛戎天瑛唐振中
Owner GUANGDONG BOZHILIN ROBOT CO LTD
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