Enhanced admixture for municipal refuse recycled concrete as well as preparation method thereof and application thereof

A technology of recycled concrete and municipal waste, applied in the field of building materials, can solve problems such as poor mechanical properties, poor work performance, increased water consumption, etc., achieve high surface activity and dispersion effect, high production efficiency, and reduce total water consumption Effect

Active Publication Date: 2013-04-10
富春控股集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the high mortar content of recycled aggregate, the characteristics of low apparent density, high water absorption, and high content of impurities such as mud powder make it show poor workability and p

Method used

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  • Enhanced admixture for municipal refuse recycled concrete as well as preparation method thereof and application thereof
  • Enhanced admixture for municipal refuse recycled concrete as well as preparation method thereof and application thereof
  • Enhanced admixture for municipal refuse recycled concrete as well as preparation method thereof and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] (1) Weigh the raw materials of each component according to the following ratio: polyacrylic ether polymer 0g, β-naphthalenesulfonate formaldehyde condensate 5g, sulfonated melamine formaldehyde resin 5g, water-soluble sulfonated acetone-formaldehyde condensation polymer 0g , Calcium lignosulfonate 20g, sodium gluconate: 0.1g, sodium lauryl sulfate: 0.1g, water glass: 1g, potassium methyl silicate: 1g, sodium thiocyanate: 0.1g, sodium metaphosphate: 1g, 66.7g water;

[0047] (2) Mix the above-mentioned ingredients evenly: stirring temperature is 40℃, stirring speed is 10 revolutions / min, stirring time is 30 minutes.

Embodiment 2

[0049] (1) Weigh the raw materials of each component according to the following ratio: polyacrylic ether polymer 0g, β-naphthalenesulfonate formaldehyde condensate 40g, sulfonated melamine formaldehyde resin 5g, water-soluble sulfonated acetone-formaldehyde condensation polymer 10g , Calcium lignosulfonate 0g, sodium gluconate: 0.5g, sodium lauryl sulfate: 0.5g, water glass: 5g, potassium methyl silicate: 10g, sodium thiocyanate: 1g, sodium metaphosphate: 5g , 23g of water;

[0050] (2) Mix the above-mentioned ingredients evenly: stirring temperature 20°C, stirring speed 1300 rpm, stirring time 1 minute.

Embodiment 3

[0052] (1) Weigh the raw materials of each component according to the following ratio: polyacrylic ether polymer 0g, β-naphthalenesulfonate formaldehyde condensate 0g, sulfonated melamine formaldehyde resin 10g, water-soluble sulfonated acetone-formaldehyde condensation polymer 40g , Calcium lignosulfonate 10g, sodium gluconate: 3g, sodium lauryl sulfate: 3g, water glass: 10g, potassium methyl silicate: 0.5g, sodium thiocyanate: 3g, sodium metaphosphate: 10g, 10.5g of water;

[0053] (2) Mix the above-mentioned ingredients evenly: stirring temperature 80°C, stirring speed 500 rpm, stirring time 10 minutes.

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Abstract

The invention belongs to the technical field of building materials and relates to an enhanced admixture for a municipal refuse recycled concrete as well as a preparation method thereof and the application thereof. The enhanced admixture comprises the following functional components for water reduction, enhancement, impurity shielding and the like in percentage by weight: 0-50% of polycarboxylic acid water reducer, 0-50% of highly efficient naphthalene water reducer, 0-50% of melamine resin water reducer, 0-50% of highly efficient aliphatic water reducer, 10-50% of lignosulfonate, 0.1-5% of sodium gluconate, 0.1-5% of sodium dodecyl sulfate, 0.1-10% of sodium silicate, 0.1-10% of potassium methyl silicate, 0.1-10% of sodium thiocyanate, 0.1-10% of sodium metaphosphate and 10-65% of water. In addition, the invention further discloses the preparation method and the application of the enhanced admixture. The enhanced admixture for the municipal refuse recycled concrete, provided by the invention, has the advantages of wide raw material source, simple production method, high production efficiency and obvious use effect and is suitable for large-scale industrial production.

Description

Technical field [0001] The invention belongs to the technical field of building materials, and relates to a reinforced admixture (hereinafter referred to as a reinforcing agent) for urban waste recycled concrete and a preparation method and application thereof. Background technique [0002] In recent years, with the development of urban construction, a large amount of urban construction waste has been generated, including a large amount of waste concrete. The huge amount of waste concrete is not only expensive for disposal, but also requires a lot of empty space for storage, polluting the environment, wasting farmland, and becoming a major public hazard in the city. The resulting environmental problems are very prominent. Therefore, how to deal with these construction wastes reasonably has aroused widespread concern among government departments and the public. At the same time, with the continuous exploitation of natural sand and gravel, natural aggregate resources tend to be de...

Claims

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Application Information

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IPC IPC(8): C04B24/26C04B18/16
CPCY02W30/91
Inventor 袁翔张雄孙剑艳
Owner 富春控股集团有限公司
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