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Energy-saving waste-utilizing self-insulation concrete and preparation method thereof

A concrete and self-insulation technology, applied in the field of new energy-saving building materials, can solve the problems of low recycling rate of insulation materials, not being widely used, polluting the environment, etc., achieving significant technical and economic significance and social benefits, promoting development, and thermal conductivity. low effect

Inactive Publication Date: 2014-01-08
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are self-insulating blocks of perlite, aerated concrete, and lightweight ceramsite, but they have not been widely used due to their respective defects.
[0005] On the other hand, most thermal power plants in my country cover heating pipes with extremely low recycling rate of insulation materials, and most of them are discarded or landfilled, which not only pollutes the environment, but also wastes huge resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] An energy-saving and waste-recycling self-insulating concrete, 1m 3 Concrete contains 750kg of cement, 490kg of gravel, 200kg of sand, 85kg of rock wool, 135kg of expanded perlite, 11kg of waterproofing agent, 4.25kg of penetrating agent, and 450kg of water.

[0028] A method for preparing the above-mentioned energy-saving and waste-recycling self-insulating concrete, comprising the following steps:

[0029] (1) Add water and waterproofing agent to pre-wet expanded perlite and stir for 3 minutes and take it out;

[0030] (2) Put cement, sand and stones into the mixer, add water and stir for 3 minutes;

[0031] (3) Pour the pre-wet expanded perlite aggregate into the mixer and stir together, then evenly disperse the pretreated rock wool into the mixer and stir together;

[0032] (4) Add the water required for the mixture and continue stirring for 3 minutes;

[0033] (5) If the workability of the mixture does not meet the requirements, it is necessary to add water to t...

Embodiment 2

[0035] An energy-saving and waste-recycling self-insulating concrete, 1m 3 The concrete contains 720kg of cement, 550kg of gravel, 170kg of sand, 35kg of rock wool, 210kg of expanded perlite, 12.25kg of waterproofing agent, 1.75kg of penetrating agent, and 432kg of water.

[0036] A method for preparing the above-mentioned energy-saving and waste-recycling self-insulating concrete, comprising the following steps:

[0037] (1) Add water and waterproofing agent to pre-wet expanded perlite and stir for 5 minutes and take it out;

[0038] (2) Put cement, sand and stones into the mixer, add water and stir for 5 minutes;

[0039] (3) Pour the pre-wet expanded perlite aggregate into the mixer and stir together, then evenly disperse the pretreated rock wool into the mixer and stir together;

[0040] (4) Add the water required for the mixture and continue stirring for 5 minutes;

[0041] (5) If the workability of the mixture does not meet the requirements, it is necessary to add wat...

Embodiment 3

[0043] An energy-saving and waste-recycling self-insulating concrete, 1m 3 The concrete contains 735kg of cement, 520kg of gravel, 185kg of sand, 60kg of rock wool, 173kg of expanded perlite, 12kg of waterproofing agent, 3kg of penetrating agent, and 440kg of water.

[0044] A method for preparing the above-mentioned energy-saving and waste-recycling self-insulating concrete, comprising the following steps:

[0045] (1) Add water and waterproofing agent to pre-wet expanded perlite and stir for 4 minutes and take it out;

[0046] (2) Put cement, sand and stones into the mixer, add water and stir for 4 minutes;

[0047] (3) Pour the pre-wet expanded perlite aggregate into the mixer and stir together, then evenly disperse the pretreated rock wool into the mixer and stir together;

[0048] (4) Add the water required for the mixture and continue stirring for 4 minutes;

[0049] (5) If the workability of the mixture does not meet the requirements, it is necessary to add water to ...

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Abstract

The invention discloses an energy-saving waste-utilizing self-insulation concrete which is prepared from the following raw materials in parts by weight: 10000 parts of cement, 6500-7600 parts of 2300-2700 parts of sand, 490-1130 parts of rock wool, 1800-2900 parts of expanded perlite, 110-200 parts of waterproofing agent, 25-57 parts of penetrant and 6000-8000 parts of water. The invention also discloses a preparation method of the energy-saving waste-utilizing self-insulation concrete. The energy-saving waste-utilizing self-insulation concrete can satisfy the requirements of the nation for the energy-saving environment-friendly building material, and can promote the development of the concrete brick masonry material; the self-insulation concrete has the advantages of low heat conductivity coefficient, favorable insulation property and simple preparation technique; and all the materials are inorganic substances, and thus, the self-insulation concrete has stable physicochemical properties.

Description

technical field [0001] The invention relates to the technical field of new energy-saving building materials, in particular to an energy-saving and waste-recycling self-insulating concrete and a preparation method thereof. Background technique [0002] One of the ways to save energy in buildings is to improve the thermal performance of the building envelope and reduce the energy loss of the building envelope. In the field of building energy conservation, wall insulation is a very important technical branch, and it is an important measure to reduce building energy consumption and implement building energy conservation. Wall insulation technology can reflect a country's building energy-saving level to a certain extent, and the development of wall insulation technology and industry also determines a country's building energy-saving effect to a certain extent. Therefore, wall insulation is closely related to building energy saving and inseparable. [0003] At present, my countr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
Inventor 孙伟民赵亮郭樟根王剑陈婷婷
Owner NANJING UNIV OF TECH