Foam concrete

A foamed concrete and foaming agent technology, applied in the field of foamed concrete, can solve the problems of affecting the compressive strength of foamed concrete, easy cracking of foamed concrete, etc., and achieve the effect of improving density and strong performance

Inactive Publication Date: 2019-08-30
广州市泰和混凝土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the porous structure of foam concrete makes the foam concrete have superior properties such as light weight, thermal insulation, sound insulation and fire resistance, the porous structure of th...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] A foamed concrete including the following components in parts by mass:

[0064] Water 14kg; Portland cement 25kg; limestone powder 15kg; sand 75kg; stone 104.5kg; foaming agent 0.5kg; water reducing agent 0.5kg; starch 0.5kg; hollow glass beads 1kg; pineapple leaf fiber 0.3kg.

[0065] In this embodiment, the particle size of the hollow glass beads is 40 μm.

[0066] The preparation method of foam concrete is as follows:

[0067] S1. In a cement mixer, add 25kg of Portland cement under normal temperature conditions, and mix at a speed of 150r / min;

[0068] S2, while stirring, add 14 kg of water, 0.5 kg of water reducing agent, 0.5 kg of starch, 1 kg of hollow glass beads, and 0.3 kg of pineapple leaf fiber, and after stirring, a premix is ​​obtained;

[0069] S3. In a sand-gravel mixer, under normal temperature conditions, add 15kg of limestone powder, 75kg of sand, and 104.5kg of stone, and stir at a speed of 180r / min to obtain aggregate after uniform mixing;

[0070] S4. In the c...

Embodiment 2

[0074] A foamed concrete including the following components in parts by mass:

[0075] Water 15kg; Portland cement 23kg; Limestone powder 11kg; Sand 85kg; Stone 103kg; Foaming agent 0.3kg; Water reducing agent 0.3kg; Starch 0.3kg; Hollow glass beads 0.5kg; Pineapple leaf fiber 0.1kg.

[0076] In this embodiment, the particle size of the hollow glass beads is 43 μm.

[0077] The preparation method of foam concrete is as follows:

[0078] S1. In the cement mixer, under normal temperature conditions, add 23kg of Portland cement and stir at a speed of 150r / min;

[0079] S2, while stirring, add 15kg of water, 0.3kg of water reducing agent, 0.3kg of starch, 0.5kg of hollow glass beads, and 0.1kg of pineapple leaf fiber. After stirring, a premix is ​​obtained;

[0080] S3. In a sand-gravel mixer, under normal temperature conditions, add 11kg of limestone powder, 85kg of sand, and 103kg of stone, and stir at a speed of 180r / min to obtain aggregate after uniform mixing;

[0081] S4. In the concret...

Embodiment 3

[0085] A foamed concrete including the following components in parts by mass:

[0086] Water 16kg; Portland cement 20kg; Limestone powder 13kg; Sand 80kg; Stone 106kg; Foaming agent 0.4kg; Water reducing agent 0.4kg; Starch 0.4kg; Hollow glass beads 0.8kg; Pineapple leaf fiber 0.2kg.

[0087] In this embodiment, the particle size of the hollow glass beads is 45 μm.

[0088] The preparation method of foam concrete is as follows:

[0089] S1. In a cement mixer, add 20kg of Portland cement under normal temperature conditions, and stir at a speed of 150r / min;

[0090] S2, while stirring, add 16 kg of water, 0.4 kg of water reducing agent, 0.4 kg of starch, 0.8 kg of hollow glass beads, and 0.2 kg of pineapple leaf fiber. After stirring, a premix is ​​obtained;

[0091] S3. In a sand-gravel mixer, under normal temperature conditions, add 13kg of limestone powder, 80kg of sand, and 106kg of stone, and stir at a speed of 180r / min to obtain aggregate after uniform mixing;

[0092] S4. In the conc...

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Abstract

The invention relates to the field of concrete, and provides foam concrete aiming at the problem that compressive strength of the foam concrete is easily influenced by the porous structure. The foam concrete is prepared from the following components in parts by mass: 14-16 parts of water, 20-25 parts of Portland cement, 11-15 parts of limestone powder, 75-85 parts of sand, 103-106 parts of stone,0.3-0.5 parts of a foaming agent, 0.1-0.5 parts of a water reducing agent, 0.3-0.5 parts of starch, 0.5-1 part of hollow glass beads and 0.1-0.3 parts of pineapple leaf fiber. Pores among cement particles can be filled with the hollow glass microbeads, so that compactness of the foam concrete is improved, and the foam concrete is not prone to cracking under pressure. Besides, the hollow glass microbeads also have certain fluidity, contain thin gas inside, and have the functions of light weight, heat insulation and sound insulation, and thus, the foam concrete has higher compressive strength while maintaining superior performance.

Description

Technical field [0001] The invention relates to the field of concrete, and more specifically, it relates to a foam concrete. Background technique [0002] Foamed concrete uses the foaming system of the foaming machine to fully foam the foaming agent mechanically, and evenly mix the foam and cement slurry, and then pass through the pumping system of the foaming machine for in-situ construction or mold forming. A new type of lightweight insulation material with a large number of closed pores formed by curing. [0003] Although the porous structure of foamed concrete makes the foamed concrete have the advantages of light weight, heat insulation, sound insulation and fire resistance, but the porous structure of foamed concrete easily affects the compressive strength of the foamed concrete, which makes the foamed concrete easy to crack when under pressure. Therefore, there is still room for improvement. Summary of the invention [0004] In view of the shortcomings of the prior art, the...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B38/10C04B38/08
CPCC04B28/04C04B2201/50C04B14/28C04B14/06C04B14/00C04B24/14C04B24/18C04B24/38C04B14/24C04B18/248C04B38/10C04B38/08
Inventor 余楚宏
Owner 广州市泰和混凝土有限公司
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