Method for preparing small hollow light aggregate concrete block from industrial solid waste residues

A lightweight aggregate concrete and solid waste slag technology, used in building components, buildings, building structures, etc., can solve the problems of poor thermal insulation performance, water and moisture resistance, poor forming performance of hollow blocks, and poor quality of hollow blocks. Unsatisfactory and other problems, to achieve the effect of increasing thermal insulation performance, increasing water and moisture resistance performance, and convenient masonry process

Active Publication Date: 2018-05-29
盘州市生泰新型建材有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in the prior art, there are still unreasonable structures, high quality, high density, high cost, poor thermal insulation performance and water-proof and moisture-proof performance for the preparation of small-sc

Method used

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  • Method for preparing small hollow light aggregate concrete block from industrial solid waste residues
  • Method for preparing small hollow light aggregate concrete block from industrial solid waste residues
  • Method for preparing small hollow light aggregate concrete block from industrial solid waste residues

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0054] Example 1

[0055] The preparation method of thermal insulation block includes the following steps:

[0056] (1) Pellets from construction waste: the construction waste is classified and placed, and the jaw crusher and the hammer crusher are used for crushing and sieving to obtain particles with a particle size of 1-8mm;

[0057] (2) Fine powder sedimentation: Place the particles obtained in step (1) in a pool so that the water can completely submerge the particles, and stir the pool to ensure that the water and particles can be suspended and rotated together to achieve the washing of the particles, and The particles are taken out and used as regenerated aggregates; the pool is allowed to settle, and the upper layer of water is pumped out to obtain washing soil;

[0058] (3) Preparation: Mix the recycled aggregate, coal-fired slag, and cement into a mixture according to the volume percentage of 24% recycled aggregate, 62.3% of coal-fired slag, and 13.7% of cement;

[0059] (4) C...

Example Embodiment

[0064] Example 2

[0065] On the basis of Example 1, the construction waste was directly pulverized into particles with a particle size of ≤9 mm, which were used as recycled aggregates, and were prepared into thermal insulation blocks according to the preparation method of Example 1. The thermal insulation block structure prepared by the mold is as follows image 3 or Figure 4 Shown.

Example Embodiment

[0066] Example 3

[0067] On the basis of Example 1, the vibration compression molding in step (4) is formed by extrusion molding, and conventional steam curing treatment is used to prepare a thermal insulation block. The thermal insulation block structure prepared by the mold is as follows Figure 5 Shown.

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Abstract

The invention relates to the technical field of building materials, in particular to a method for preparing a small hollow light aggregate concrete block from industrial solid waste residues. Buildingwastes are collected, classified and then crushed into particles respectively, the particles are washed for mud settling treatment, recycled aggregate is obtained, the recycled aggregate is compounded with coal-fired furnace slag and cement, the proportion is controlled, so that the prepared hollow block has the density grade meeting the grade-800 requirement, the strength grade meeting the grade-MU5.0 requirement, the water absorption rate smaller than or equal to 9%, the dry shrinkage rate smaller than or equal to 0.046%, the relative water content smaller than or equal to 32%, the softening coefficient larger than or equal to 0.89, the carbonization coefficient larger than or equal to 0.91, the freezing and thawing strength loss lower than or equal to 12% and the freezing and thawing quality loss lower than or equal to 3.6%. Besides, the adding amount of the industrial solid wastes reaches 86.3%, and the preparation cost of the thermal insulation block is reduced to a great extent.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a method for preparing small hollow blocks of lightweight aggregate concrete by using industrial solid waste residues. Background technique [0002] In recent years, with the rapid development of urbanization in my country, industrial construction has continued to expand, leading to a substantial increase in the generation and discharge of construction waste and industrial solid waste. According to reports, the amount of construction waste generated and discharged in my country is more than 400 million tons every year during construction and construction, and the amount of construction waste generated due to demolition and relocation is huge; the total amount of construction waste in my country accounts for approximately If these wastes are not utilized, it will not only cause a waste of resources, but also affect the ecological environment and the lives of ordinary peo...

Claims

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Application Information

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IPC IPC(8): E04C1/00C04B28/00
CPCC04B28/00E04C1/00C04B18/16C04B18/10
Inventor 王建义田仕明张雪敏王尧
Owner 盘州市生泰新型建材有限公司
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