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A kind of waste sintered brick and tile environment-friendly lightweight concrete and its preparation method

A lightweight concrete and environmentally friendly technology, applied in the field of concrete, can solve the problems of low flexural strength of lightweight aggregate concrete, shorten the setting time, improve the thermal insulation effect, and reduce the bulk density.

Active Publication Date: 2022-01-07
HANGZHOU WUYOU BUILDING MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this lightweight aggregate concrete, by adding EPS particles into the raw materials, the EPS particles are distributed in the lightweight aggregate concrete to reduce the thermal conductivity of the lightweight aggregate concrete, but the flexural strength of the lightweight aggregate concrete is low, and its flexural strength The strength is 0.91MPa

Method used

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  • A kind of waste sintered brick and tile environment-friendly lightweight concrete and its preparation method
  • A kind of waste sintered brick and tile environment-friendly lightweight concrete and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] An environmentally friendly lightweight concrete of waste fired bricks and tiles, the raw material ratio is shown in Table 1.

[0041] The preparation method of lightweight concrete comprises the following steps:

[0042] Wetting water is sprayed into the waste sintered bricks and tiles, and the amount of the water for wetting is 13% of the weight of the waste sintered bricks and tiles to obtain Mixture A;

[0043] The water for adsorption is sprayed into the fly ash, and the amount of the water for adsorption is 35% of the weight of the fly ash to obtain Mixture B;

[0044] Mix cement, slag, silica fume, polyacrylonitrile fiber, plastic steel fiber, polystyrene particles, microsilica, polycarboxylate superplasticizer, mixture A, mixture B, and the balance of water to obtain lightweight concrete .

[0045] Among them, the average length of polyacrylonitrile fibers is 4 mm, the average length of plastic steel fibers is 2 mm, the average particle size of silicon micropo...

Embodiment 2-11

[0049] A kind of waste sintered brick and tile environment-friendly lightweight concrete, the difference between Examples 2-11 and Example 1 is that the ratio of raw materials is different, and the ratio of raw materials is shown in Table 1.

Embodiment 12

[0051] An environmentally friendly lightweight concrete for waste sintered bricks and tiles, the difference between this embodiment and Example 10 is that in the preparation method of the environment-friendly lightweight concrete, the amount of water used for soaking is 10% of the weight of the waste sintered bricks and tiles , the amount of water to absorb water is 30% of the weight of fly ash, and the average length of polyacrylonitrile fibers is 3 mm, the average length of plastic steel fibers is 3 mm, the average particle size of silicon micropowder is 50 μm, and the average particle size of polystyrene particles is 1mm.

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Abstract

The application relates to an environmentally friendly lightweight concrete of waste fired bricks and tiles and a preparation method thereof, which belongs to the technical field of concrete. The raw materials of lightweight concrete include cement, water, waste fired bricks and tiles, fly ash, slag, silica fume, polymer Acrylonitrile fiber, plastic steel fiber, polystyrene particles, ceramic powder, silica powder, polycarboxylate high-efficiency water reducer, phenolic resin, and through the synergistic effect between raw materials, under the condition of ensuring low thermal conductivity of lightweight concrete , so that the lightweight concrete has good compressive strength and flexural strength, and also makes the lightweight concrete have good frost resistance. In the preparation method of environmentally friendly lightweight concrete, the waste sintered bricks and tiles are pre-mixed with soaking water, and the fly ash and adsorption water are pre-mixed to reduce the mixing effect of waste sintered bricks, tiles and fly ash due to the adsorption of water. , so that the mixing of raw materials is uniform and stable.

Description

technical field [0001] The present application relates to the technical field of concrete, and more specifically, to an environmentally friendly lightweight concrete of waste fired bricks and a preparation method thereof. Background technique [0002] With the development of my country's economy, the construction industry has also made rapid progress, especially lightweight concrete. Lightweight concrete, also known as lightweight aggregate concrete, is made of lightweight coarse aggregate, fine aggregate, cement, water, and admixtures. Lightweight concrete is different from ordinary concrete. There are a large number of micropores in lightweight concrete, which makes lightweight concrete have the advantages of light weight, low thermal conductivity, good sound insulation and good seismic performance, and is widely used in modern concrete technology. . [0003] At present, the patent document with the authorization announcement date of 2014.09.10 and the authorization anno...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/06C04B40/00C04B16/06C04B16/08C04B14/06C04B7/02C04B18/16C04B111/20C04B111/40
CPCC04B28/065C04B40/0028C04B2111/40C04B2111/29C04B2201/32C04B2201/50C04B7/02C04B18/165C04B18/08C04B18/141C04B18/146C04B16/0658C04B16/0633C04B16/08C04B14/062C04B2103/302C04B22/002Y02W30/91
Inventor 陈芝虎诸明陈彪
Owner HANGZHOU WUYOU BUILDING MATERIALS CO LTD
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