Haydite autoclaved aerated concrete and production method

A technology of autoclaved aeration and concrete, which is applied in the direction of ceramic products, ceramic molding machines, and climate sustainability. The effect of shrinkage and stable performance

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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing air-entrained concrete has poor dimensional accuracy...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A production method of ceramsite autoclaved aerated concrete, comprising the following steps:

[0044] (1) Raw material measurement: The raw material is measured according to the following weight percentages:

[0045] Ceramsite (with a capacity of 500kg / m 3 Ceramsite) 26.6%

[0046] Fly ash 44.72%

[0047] Lime 16%

[0048] Cement 6.6%

[0049] Gypsum 4%

[0050] Aluminum powder 0.08%

[0051] Admixture (JM type concrete admixture) 2%;

[0052] (2) Mixing of ingredients: add fly ash to gypsum according to the above ratio, and add water to make a slurry, then add ceramsite, stir evenly, then add lime, cement, admixture and aluminum powder, mix and stir to form a slurry;

[0053] (3) Pouring into the mold: pouring the prepared slurry into the mold;

[0054] (4) Electrostatic gas generation, demoulding, autoclaving: send the mold that is poured into the mold into the static curing room above 35°C, demould after the slurry is gassed and begins to harden, and then se...

Embodiment 2

[0057]A production method of ceramsite autoclaved aerated concrete, raw materials are measured according to the following weight percentages:

[0058] Ceramsite 50%

[0059] Sand, quartz tailings powder or silica slag 15%

[0060] Lime 10%

[0061] Cement 20%

[0062] Gypsum 1%

[0063] Aluminum paste powder 0.03%

[0064] Admixture 3.97%; All the other are with embodiment 1.

[0065] The admixture is one or more of JM series concrete admixtures, foam stabilizers, micro-expansion agents, shrinkage reducers, water reducers, activators, coagulation accelerators, and hardening accelerators.

Embodiment 3

[0067] A production method of ceramsite autoclaved aerated concrete, raw materials are measured according to the following weight percentages:

[0068] Ceramsite 71.95%

[0069] Sand and silica slag (both in the same amount) 8%

[0070] Lime 8%

[0071] Cement 5%

[0072] Gypsum 7%

[0073] Aluminum paste powder 0.05%; All the other are with embodiment 1.

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Abstract

The invention discloses a ceramsite autoclaved aerated concrete and a production method. The concrete consists of ceramsite, coal ash, sand, quartz tailing powder or silicon slag, lime, cement, gypsum, aluminum powder or aluminum paste powder, and admixture. The production method comprises the steps of measuring raw materials, blending and stirring, pouring and feeding a die, generating gas by static electricity, mold stripping, autoclaving, mechanical cutting and the like. The concrete has precise dimension and good performance.

Description

Technical field: [0001] The invention relates to an aerated concrete and a production method. Background technique: [0002] Existing air-entrained concrete has poor dimensional accuracy and has defects in weather resistance, durability, and earthquake resistance. Invention content: [0003] The object of the present invention is to provide a ceramsite autoclaved aerated concrete with accurate size and good performance and its production method. [0004] Technical solution of the present invention is: [0005] A ceramsite autoclaved aerated concrete is characterized in that it consists of the following components in weight percentage: [0006] Ceramsite 5~75% [0007] Fly ash, sand, quartz tailings powder or silicon slag 8-75% [0008] Lime 8~40% [0009] Cement 5~30% [0010] Gypsum 1~8% [0011] Aluminum powder or aluminum paste powder 0.03~0.1% [0012] Admixture 0~5%. [0013] The admixture is one or more of JM series concrete admixtures, foam stabilizers, mic...

Claims

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Application Information

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IPC IPC(8): C04B28/14B28B5/00B28B1/14B28B11/24B28B11/14C04B14/02C04B14/06C04B18/12C04B18/08C04B7/34C04B22/04C04B111/28C04B111/27C04B111/40C04B111/52
CPCC04B28/18Y02W30/91C04B7/02C04B14/06C04B14/12C04B18/08C04B18/12C04B18/146C04B22/008C04B22/04C04B22/143C04B38/02C04B40/0028C04B40/0245C04B2103/10C04B2103/14C04B2103/302C04B2103/48
Inventor 朱德才蔡世杰陈荣华
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