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Air-added ceramsite concrete and preparation method thereof

A ceramsite concrete and concrete technology, applied in the field of concrete, can solve the problems of easy shrinkage and cracking, difficult control of bulk density, floating of ceramsite, etc., and achieve the effects of easy control of bulk density, stable strength, and easy measurement.

Inactive Publication Date: 2015-10-21
CHINA MINSHENG ZHUYOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention proposes a new type of aerated ceramsite concrete and its preparation method in order to solve the problems existing in the prior art, such as easy shrinkage and cracking, large bulk capacity, ceramsite floating during manufacture, and difficult control of bulk density.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Raw material ratio: 40 parts of gelling material, 20 parts of water, 0.5 part of fiber material, 0.1 part of admixture (additives are early strength agent, water reducer, foam stabilizer, redispersible latex powder, cellulose ether press Mixture with the same mass ratio), 0.05 parts of foaming agent, 20 parts of ceramsite.

[0028] The preparation process is as follows:

[0029] (1) Stir the gelling material, fiber material, water, and admixture at high speed to form a slurry at a stirring rate of 500 rpm for 45 seconds;

[0030] (2) The foaming agent is pre-foamed mechanically to form stable and uniform microbubbles, and then the foam is added to the slurry that has been mixed in step (1), and mixed evenly;

[0031] (3) Finally, add ceramsite and stir at a stirring rate of 30 rpm for 30 seconds to make freshly mixed aerated ceramsite concrete;

[0032] (4) Put it into the mold, wet curing and molding.

[0033] The concrete bulk density of present embodiment gained i...

Embodiment 2

[0035] Raw material ratio: 45 parts of gelling material, 23 parts of water, 0.8 part of fiber material, 0.2 part of admixture (additives are early strength agent, water reducer, foam stabilizer, redispersible latex powder, cellulose ether press Mixture with the same mass ratio), 0.07 parts of foaming agent, 30 parts of ceramsite.

[0036] The preparation process is as follows:

[0037] (1) Stir the gelling material, fiber material, water, and admixture at high speed at a stirring rate of 1000 rpm for 30 seconds to form a slurry;

[0038] (2) The foaming agent is pre-foamed mechanically to form stable and uniform microbubbles, and then the foam is added to the slurry that has been mixed in step (1), and mixed evenly;

[0039] (3) Finally, add ceramsite and stir at a stirring rate of 30 rpm for 45 seconds to make freshly mixed aerated ceramsite concrete;

[0040] (4) Put it into the mold, wet curing and molding.

[0041] The concrete bulk density of present embodiment gained ...

Embodiment 3

[0043] Raw material formula: 50 parts of gelling material, 25 parts of water, 1 part of fiber material, 0.5 part of admixture (the early strength agent and the water reducer are mixed in a ratio of 2 to 1 by mass), 0.1 part of foaming agent, 40 parts of pottery grain.

[0044] Preparation Process:

[0045] (1) Stir the gelling material, fiber material, water, and admixture at high speed at a stirring rate of 800 rpm for 30 seconds to form a slurry;

[0046] (2) The foaming agent is pre-foamed mechanically to form stable and uniform microbubbles, and then the foam is added to the slurry that has been mixed in step (1), and mixed evenly;

[0047] (3) Finally, add ceramsite and stir at a stirring rate of 45 rpm for 30 seconds to make freshly mixed aerated ceramsite concrete;

[0048] (4) Put it into the mold, wet curing and molding.

[0049] The gained concrete bulk density of present embodiment is 1420kg / m3 , 1-day compressive strength 10.1MPa, 28-day compressive strength 21....

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Abstract

The invention relates to concrete, in particular to air-added ceramsite concrete and a preparation method thereof, and aims at solving the problems that in the prior art, shrinkage is prone to happening, cracks are easy to generate, the volume weight is heavy, ceramsite is raised during manufacturing, and the volume weight is hard to control. According to the technical scheme, preparation materials of the air-added ceramsite concrete comprise, by weight, 35-55 parts of binding materials, 0.08-0.6 part of additives, 0.03-0.15 part of foaming agents, 15-45 parts of the ceramsite and 20-30 parts of water. By modifying a formula of the concrete and the production technology, the light and high-strength air-added ceramsite concrete is obtained, meanwhile the production technology further has the advantages that the ceramsite is prevented from raising, and the volume weight is easy to control.

Description

technical field [0001] The invention relates to concrete, in particular to an aerated ceramsite concrete and a preparation method thereof. Background technique [0002] Ceramsite concrete is a kind of concrete in which ceramsite replaces stones as aggregate. It belongs to lightweight aggregate concrete. Generally, ceramsite is used as coarse aggregate, ordinary sand or ceramsite is used as fine aggregate, and cementitious materials are added. It has excellent properties such as light weight and high strength, thermal insulation, fire resistance and heat resistance, sound insulation and earthquake resistance. The publication number is CN103524080A. The Chinese patent application discloses a production method of ceramsite foamed concrete high-strength blocks. The method uses fly ash, cement, ceramsite and special reinforcing agents to prepare blocks. The production method is to stir first Special reinforcing agent, and then stir other raw materials such as fly ash, cement, ce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B28/06C04B38/02C04B14/06C04B16/06C04B18/24
CPCY02W30/91
Inventor 康志坚张鹏徐志辉
Owner CHINA MINSHENG ZHUYOU
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