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Heat-insulating concrete and preparation method thereof

A technology for thermal insulation concrete and Portland cement, applied in the field of concrete, can solve problems such as endangering river flood control and urban water supply, depletion of river sand resources, poor thermal insulation of concrete products, etc., to enhance toughness, reduce thermal conductivity and disperse performance. excellent effect

Inactive Publication Date: 2019-05-17
CHUZHOU VOCATIONAL & TECHN COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the mass production of concrete products depletes the limited river sand resources on the one hand, endangering river flood control and urban water supply, on the other hand, it also leads to poor thermal insulation of concrete products, which needs to be solved urgently

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A thermal insulation concrete, comprising the following raw materials in parts by weight: 400 parts of Portland cement, 80 parts of industrial construction waste, 80 parts of pottery sand, 32 parts of turpentine ore, 40 parts of vanadium slag, 15 parts of ceramic polishing powder, and 35 parts of boiling slag , 50 parts of zeolite compound, 12 parts of limestone powder, 18 parts of nano-calcium carbonate, 50 parts of finely ground quartz sand, 10 parts of early-strength superplasticizer, 60 parts of nano-aluminum titanate fiber, 12 parts of PVA fiber, copper plating Steel fiber 30 parts.

[0022] Among the Portland cement, Portland cement with a particle size of 5-15 μm accounts for 50 wt%, Portland cement with a particle size of 20-40 μm accounts for 16 wt%, and the rest is Portland cement with a particle size of 50-100 μm;

[0023] The particle size of the zeolite composite is 1-10mm;

[0024] The tensile strength of the copper-plated fiber is 1600MPa;

[0025] The ...

Embodiment 2

[0033] A thermal insulation concrete, comprising the following raw materials in parts by weight: 300 parts of Portland cement, 100 parts of industrial construction waste, 40 parts of pottery sand, 65 parts of turpentine ore, 20 parts of vanadium slag, 34 parts of ceramic polishing powder, and 12 parts of boiling slag , 120 parts of zeolite compound, 4 parts of limestone powder, 34 parts of nano-calcium carbonate, 20 parts of finely ground quartz sand, 20 parts of early-strength superplasticizer, 20 parts of nano-aluminum titanate fiber, 45 parts of PVA fiber, copper plating Steel fiber 10 parts.

[0034] Among the Portland cement, Portland cement with a particle size of 5-15 μm accounts for 70 wt%, Portland cement with a particle size of 20-40 μm accounts for 10 wt%, and the rest is Portland cement with a particle size of 50-100 μm;

[0035] The particle size of the zeolite composite is 1-10mm;

[0036] The tensile strength of the copper-plated fiber is 1500MPa;

[0037] The...

Embodiment 3

[0045] A thermal insulation concrete, comprising the following raw materials in parts by weight: 340 parts of Portland cement, 88 parts of industrial construction waste, 46 parts of pottery sand, 38 parts of turpentine ore, 21 parts of vanadium slag, 19 parts of ceramic polishing powder, and 16 parts of boiling slag , 58 parts of zeolite compound, 6 parts of limestone powder, 19 parts of nano-calcium carbonate, 28 parts of finely ground quartz sand, 12 parts of early-strength superplasticizer, 25 parts of nano-aluminum titanate fiber, 15 parts of PVA fiber, copper plating Steel fiber 12 parts.

[0046] Among the Portland cement, Portland cement with a particle size of 5-15 μm accounts for 53% by weight, Portland cement with a particle size of 20-40 μm accounts for 12% by weight, and the rest is Portland cement with a particle size of 50-100 μm;

[0047] The particle size of the zeolite composite is 1-10mm;

[0048] The tensile strength of the copper-plated fiber is 1500MPa;

...

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Abstract

The invention discloses a heat-insulating concrete. The heat-insulating concrete is prepared from the following raw materials in parts by weight: 300 to 400 parts of portland cement, 80 to 100 parts of industrial building waste materials, 161 to 350 parts of aggregates, 50 to 120 parts of zeolite composite, 10 to 20 parts of an early-strength type high-efficiency water reducing agent, 20 to 60 parts of nano aluminum titanate fiber, 12 to 45 parts of PVA fiber, 10 to 30 parts of copper-coated steel fiber. The heat-insulating concrete has the advantages of low cost, wide material sources, large-dosage industrial waste material, heat insulation property, a large amount of internal pores and micropores therein, superior heat-insulating performance, heat conduction coefficient being 0.08 to 0.11W / (m.k) and lower than that of the conventional concrete, high durability and self-compacting performance, and high early-strengthening speed; and the heat-insulating concrete is larger than 62MPa instrength after 1 day, is larger than 135MPa in strength after 28 days, is not lower than 145MPa in strength after 56 days, and is suitable for being applied to various building engineering.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a thermal insulation concrete and a preparation method thereof. Background technique [0002] With the rapid development of my country's economy, the demand for concrete in construction projects is increasing day by day. In the concrete manufacturing industry, a large amount of river sand is generally added to the concrete to obtain the desired strength of the final concrete structure. However, the mass production of concrete products depletes the limited river sand resources on the one hand, endangering river flood control and urban water supply, on the other hand, it also leads to poor thermal insulation of concrete products, which needs to be solved urgently. Contents of the invention [0003] Based on the technical problems in the background technology, the present invention proposes a thermal insulation concrete. The comprehensive cost of the present invention is low, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B38/08C04B111/40
Inventor 陈小瑞朱泽松李发珍
Owner CHUZHOU VOCATIONAL & TECHN COLLEGE