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A kind of environment-friendly thermal insulation hollow block and preparation method thereof

A hollow block and environmental protection technology, applied in the field of building materials and hollow bricklaying, can solve the problems of increasing construction period and cost, endangering people's life and property, and damage to ground objects, etc., to save construction links, increase production and reduce costs Effect

Active Publication Date: 2020-01-24
HEBEI INSTITUTE OF ARCHITECTURE AND CIVIL ENGINEERING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This approach has great disadvantages. On the one hand, it increases the amount of engineering to a certain extent, and increases the construction period and cost; There are also strict requirements. If the construction process is not careful, it is likely to cause the insulation material to fall, hurt passing pedestrians or cause damage to ground objects.
In addition, most insulation materials are flammable items with low fire protection rating. Once a fire breaks out, the fire will gradually spread along with the external wall insulation materials, causing great harm to people's lives and property.

Method used

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  • A kind of environment-friendly thermal insulation hollow block and preparation method thereof
  • A kind of environment-friendly thermal insulation hollow block and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1, block raw material is as follows according to quality ratio:

[0036] 1 part of cement;

[0037] 0.35 parts of fly ash;

[0038] 1.465 parts of pumice coarse aggregate;

[0039] Iron tailings sand and pumice sand mixed fine aggregate 1.366 parts;

[0040] Admixture 0.004 parts;

[0041] 0.45 parts of water.

[0042] Iron tailings sand and pumice sand The mass ratio of iron tailings sand and pumice sand in the fine aggregate is 4:6.

[0043] After testing, the dry density of the new environmentally friendly material insulation hollow block produced by this ratio is 890kg / m 3 , the thermal resistance is 1.21m 2 ·K / W, the average compressive strength is 4.7MPa.

Embodiment 2

[0044] Embodiment 2, block raw material is as follows according to quality ratio:

[0045] 1 part of cement;

[0046] 0.4 parts of fly ash;

[0047] 1.515 parts of pumice coarse aggregate;

[0048] Iron tailings sand and pumice sand mixed fine aggregate 1.537 parts;

[0049] Admixture 0.005 parts;

[0050] 0.35 parts of water.

[0051] Iron tailings sand and pumice sand The mass ratio of iron tailings sand and pumice sand in the fine aggregate is 6:4.

[0052] After testing, the dry density of the new environmentally friendly material insulation hollow block produced by this ratio is 1030kg / m 3 , the thermal resistance is 1.18m 2 • K / W, the average compressive strength is 5.7MPa.

Embodiment 3

[0053] Embodiment 3, block raw material is as follows according to quality ratio:

[0054] 1 part of cement;

[0055] 0.366 parts of fly ash;

[0056] 1.382 parts of pumice coarse aggregate;

[0057] Iron tailings sand and pumice sand mixed fine aggregate 1.496 parts;

[0058] Admixture 0.006 parts;

[0059] 0.4 parts of water.

[0060] Iron tailings sand and pumice sand The mass ratio of iron tailings sand and pumice sand in the fine aggregate is 5:5.

[0061] After testing, the dry density of the new environmentally friendly material insulation hollow block produced by this ratio is 920kg / m 3 , the thermal resistance is 1.09m 2 ·K / W, the average compressive strength is 5.3MPa.

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Abstract

The invention relates to the technical field of building materials, in particular to the technical field of hollow building bricks, and particularly discloses an environment-friendly heat-preserving hollow building block. The building block comprises the following raw material components in parts by weight: 1 part of cement, 0.35-0.428 part of fly ash, 1.326-1.685 parts of pumice stone coarse aggregates, 1.258-1.537 parts of ferrous mine tailing sand and pumice sand mixed fine aggregates, 0.003-0.006 part of additive and 0.35-0.45 part of water. The preparation method of the environment-friendly heat-insulating hollow building block comprises the following steps: uniformly mixing and stirring all the raw material components, entering a mold for vibration molding and curing. The building brick has the advantages of being higher in compressive strength, good in heat preservation and heat insulation properties, low in preparation cost and the like and can realize the effective utilization of pumice stone resources and ferrous mine tailing sand solid wastes; the preparation method of the environment-friendly heat-insulating hollow building block is simple and easy to implement and is particularly suitable for popularization and use in the northern area of China.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to the technical field of hollow bricklaying. Background technique [0002] The energy-saving and heat-preservation method of the building wall in the prior art is mainly to maintain the heat loss inside the building at a certain level by pasting and laying heat-insulating materials on the outer wall. This approach has great disadvantages. On the one hand, it increases the amount of engineering to a certain extent, and increases the construction period and cost; There are also strict requirements. If the construction process is not careful, it is likely to cause the insulation material to fall, hurt passing pedestrians or cause damage to ground objects. In addition, most insulation materials are flammable items with low fire protection rating. Once a fire breaks out, the fire will gradually spread along with the external wall insulation materials, causing great harm to p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B14/16C04B18/12E04C1/00E04B2/42C04B111/40
CPCC04B28/00C04B2111/40C04B2201/20C04B2201/30C04B2201/50E04B2/42E04C1/00C04B18/08C04B14/16C04B18/12C04B2103/302Y02W30/91
Inventor 翁维素孙婧高旭
Owner HEBEI INSTITUTE OF ARCHITECTURE AND CIVIL ENGINEERING
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