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Precast aerated ceramsite concrete component and preparation method thereof

A technology of ceramsite concrete and prefabricated components, which can be applied to ceramic products, climate sustainability, and other household appliances. It can solve the problems of difficult control of bulk density, easy shrinkage and cracking, and floating of ceramsite, so as to achieve easy control of bulk density and stable strength , easy-to-measure effects

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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 prefabricated component 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

[0028] 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.

[0029] The preparation process is as follows:

[0030] (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;

[0031] (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;

[0032] (3) Finally, add ceramsite and stir at a stirring rate of 30 rpm for 30 seconds to make freshly mixed aerated ceramsite concrete;

[0033] (4) into the mold, wet curing molding;

[0034] (5) demoulding.

[0035] The bulk density of the concrete prefabri...

Embodiment 2

[0037] 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.

[0038] The preparation process is as follows:

[0039] (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;

[0040] (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;

[0041] (3) Finally, add ceramsite and stir at a stirring rate of 30 rpm for 45 seconds to make freshly mixed aerated ceramsite concrete;

[0042] (4) into the mold, wet curing molding;

[0043] (5) Demoulding is ready.

[0044] The bulk density of the concret...

Embodiment 3

[0046] 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 reducing agent are mixed in a ratio of 2 to 1 by mass), 0.1 part of foaming agent, 40 parts of pottery grain.

[0047] Preparation Process:

[0048] (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;

[0049](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;

[0050] (3) Finally, add ceramsite and stir at a stirring rate of 45 rpm for 30 seconds to make freshly mixed aerated ceramsite concrete;

[0051] (4) into the mold, wet curing molding;

[0052] (5) Demoulding is ready.

[0053] The bulk density of the concrete prefabricated component obtained in this embodiment is 1420kg / m 3 , 1-day...

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Abstract

The invention relates to a precast concrete component, in particular to a precast aerated ceramsite concrete component and a preparation method thereof, and aims to solve the problems of high shrinkage crack possibility, heavy volume weight, ceramsite floating during preparation, and high control difficulty of volume weight. The precast aerated ceramsite concrete component comprises the following raw materials by weight: 35 to 55 parts of a binding material, 0.08 to 0.6 part of an additive, 0.03 to 0.15 part of a foaming agent, 15 to 45 parts of ceramsite, and 20 to 30 parts of water. The precast aerated ceramsite concrete component is light in weight and high in strength after being prepared according to an improved concrete formula and the improved preparation method; the preparation method has the advantages that ceramsite floating can be prevented, and the volume weight is easy to control.

Description

technical field [0001] The invention relates to the field of concrete prefabricated parts, in particular to an aerated ceramsite concrete prefabricated component 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 ...

Claims

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Application Information

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