Low-density high-strength self-insulation ceramsite hollow block and production method thereof

A hollow block and high-strength technology, which is applied in the field of high-strength self-insulating ceramsite hollow blocks and low density, can solve the problems that thermal performance cannot meet the requirements of self-insulation function, and achieve increased strength, surface tension, The effect of improving thermal performance

Inactive Publication Date: 2014-04-02
衡阳市龙都新型节能建材有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another example is to use 800-grade ceramsite to prepare 1600-1900Kg / m 3 The strength of ceramsite concrete reaches 20-40 Mpa, and the thermal conductivity is 0.77-1.15W / M K. The strength increases, but the thermal performance cannot meet the functional requirements of self-insulation.

Method used

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  • Low-density high-strength self-insulation ceramsite hollow block and production method thereof
  • Low-density high-strength self-insulation ceramsite hollow block and production method thereof
  • Low-density high-strength self-insulation ceramsite hollow block and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Embodiment 1. A low-density, high-strength self-insulating ceramsite hollow block is composed of the following components in parts by weight, wherein: cement: 1, ceramsite: 1, slag: 0.56, Stone powder: 0.56, sand: 0.33, modifier: 0.15, water: 0.55;

[0053] Described modifying agent is polyvinyl acetate;

[0054] The ceramsite is grade 400-500, and the particle size distribution is 5-12mm.

[0055] Its specific production method is as follows:

[0056] A. Soak the ceramsite in water for 24 hours to make it fully absorb water, then drain the water for later use;

[0057] B, dissolving the modifying agent in water to prepare an aqueous modifying agent solution;

[0058] C. Send the ceramsite and cement into the mixer for dry mixing. After mixing evenly, add 1 / 2 modifier aqueous solution and mix into ceramsite mortar so that the cement particles can fully cover the ceramsite. Then add slag, stone powder and sand and stir together. During the process, add the remaining ...

Embodiment 2

[0062] Embodiment 2. A low-density, high-strength self-insulating ceramsite hollow block is composed of the following components, the components are parts by weight, wherein: cement: 1, ceramsite: 1, slag: 0.56, Stone powder: 0.56, sand: 0.33, modifier: 0.15, water: 0.55;

[0063] Described modifying agent is polyvinyl acetate;

[0064] The ceramsite is grade 400-500, and the particle size distribution is 5-12mm.

[0065] Its specific production method is as follows:

[0066] A. Soak the ceramsite in water for 24 hours to make it fully absorb water, then drain the water for later use;

[0067] B, dissolving the modifying agent in water to prepare an aqueous modifying agent solution;

[0068] C. Soak the drained ceramsite in the modifier solution and stir for 1 minute;

[0069] D. Send cement, slag, stone powder, and sand into the mixer and mix evenly, then add the ceramsite together with the soaking solution into the mixer and mix evenly. During the mixing process, add wat...

Embodiment 3

[0073] Embodiment 3. A low-density, high-strength self-insulating ceramsite hollow block is composed of the following components in parts by weight, wherein: cement: 1, ceramsite: 1, slag: 0.56, Stone powder: 0.56, sand: 0.33, modifier: 0.15, water: 0.55;

[0074] Described modifying agent is polyvinyl acetate;

[0075] The ceramsite is grade 400-500, and the particle size distribution is 5-12mm.

[0076] Its specific production method is as follows:

[0077] A. Dissolving modifier in water to prepare modifier aqueous solution;

[0078] B. Soak the ceramsite in water for 24 hours to make it fully absorb water, then drain the water for later use;

[0079] C. Send cement, slag, stone powder, and sand into the mixer and mix evenly, then send the ceramsite into the mixer and mix evenly, then add the modifier aqueous solution into the mixer and mix evenly. During the mixing process, add water according to the dry humidity of the material. Control the dry humidity of the mixed m...

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Abstract

The invention discloses a low-density high-strength self-insulation ceramsite hollow block and a production method thereof. The block comprises the following materials by weight: 1 part of cement, 0.5-1.5 parts of ceramsite, 0.3-1.0 part of slag, 0.3-1.0 part of mountain flour, 0.25-0.5 part of sand, 0.05-0.3 part of a modifier and 0.3-0.68 part of water, wherein the modifier is polyvinyl acetate or ethylene-vinyl acetate; the ceramsite is in a level of 400-500 and has the particle size distribution of 5-12 mm. The block has the void ratio of 40%-45%, the volume weight of 800+/-50 kg/m<3>, the compressive strength not less than 3.5 Mpa and the thermal resistance value R not less than 0.66 m<2>*k/w. The production method comprises the following steps: uniformly stirring a modifier water solution and other materials, conveying a mixture into a forming machine for compression forming, conveying the block subjected to compression forming into a steam kiln for steam curing, and discharging from the kiln.

Description

technical field [0001] The invention relates to the field of building material production, in particular to a low-density, high-strength self-insulating ceramsite hollow block produced by modified ceramsite and a production method thereof. Background technique [0002] In self-insulating wall materials, not only density and strength indicators are required, but also its thermal performance must meet the requirements of building energy-saving standards. Generally speaking, the lighter the density, the better the thermal performance, but the lower the strength. At present, my country's ceramsite self-insulating blocks implement the GB / T15229-2011 standard of "Small Hollow Blocks for Light Aggregate Concrete". Its density and strength have corresponding clear regulations. Such as density 800, strength ≥ 2.5Mpa; density 1000, strength ≥ 3.5Mpa and so on. [0003] Generally speaking, the lighter the density, the better the thermal performance, but the lower the strength, and v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B18/10
CPCY02W30/91
Inventor 尹诗东
Owner 衡阳市龙都新型节能建材有限公司
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