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Regenerated ceramsite for lightweight aggregate concrete and preparation process thereof

A technology for lightweight aggregate concrete and asphalt concrete, which is applied in the field of recycled ceramsite for lightweight aggregate concrete and its preparation technology, can solve problems such as destroying cultivated land and ecological environment, and achieves good anti-seepage effect, excellent mechanical properties, and improved performance. The effect of compressive strength

Inactive Publication Date: 2022-05-13
南京广兰建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, traditional ceramsite lightweight aggregate raw materials are natural minerals such as clay and shale, and the excessive use of natural minerals such as clay and shale will destroy cultivated land and the ecological environment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A recycled ceramsite for lightweight aggregate concrete, comprising the following components in parts by weight: 24 parts of solid construction waste, 12 parts of slag / diatomite composite, 4 parts of fly ash, 2.5 parts of agricultural waste, and 0.6 parts of composite fiber share.

[0028] Specifically, the selection of raw materials is as follows:

[0029] The solid construction waste is selected from the composition of waste masonry concrete and / or waste asphalt concrete, wherein the waste asphalt concrete accounts for 4wt%.

[0030] The slag / diatomite composite is slag and diatomite with a mass ratio of 1:0.2. And, the slag / diatomaceous earth composite is prepared as follows, taking materials according to the mass ratio, adding 1M industrial hydrochloric acid (addition amount is 60-80% of the slag mass) to the slag in a shearing machine, stirring and shearing for 1 hour, and then filtering and cleaning. Standby; blend diatomite and water (the amount added is 3-5 ti...

Embodiment 2

[0039] A recycled ceramsite for lightweight aggregate concrete, comprising the following components in parts by weight: 22 parts of solid construction waste, 10 parts of slag / diatomite composite, 6 parts of fly ash, 3 parts of agricultural waste, and 0.5 parts of composite fiber share.

[0040] Specifically, the selection of raw materials is as follows:

[0041] The solid construction waste is selected from the composition of waste masonry concrete and / or waste asphalt concrete, wherein the waste asphalt concrete accounts for 5wt%.

[0042] The slag / diatomite composite is slag and diatomite with a mass ratio of 1:0.3. And, the preparation of the slag / diatomite composite is as follows: take the material according to the mass ratio, add 0.8M industrial hydrochloric acid (addition amount is 60-80% of the slag mass) to the slag in the shearing machine, stir and shear for 1 hour, then filter and wash , for later use; diatomite and water (addition amount is 3-5 times of diatomite ...

Embodiment 3

[0047] A recycled ceramsite for lightweight aggregate concrete, comprising the following components in parts by weight: 23 parts of solid construction waste, 10 parts of slag / diatomite composite, 4 parts of fly ash, 3 parts of agricultural waste, and 1 part of composite fiber share.

[0048] Specifically, the selection of raw materials is as follows:

[0049] The solid construction waste is selected from the composition of waste masonry concrete and / or waste asphalt concrete, wherein the waste asphalt concrete accounts for 6wt%.

[0050] The slag / diatomite composite is slag and diatomite with a mass ratio of 1:0.1. And, the preparation of the slag / diatomite composite is as follows, taking the material according to the mass ratio, adding 1M industrial hydrochloric acid (addition amount is 60-80% of the slag mass) to the slag in the shearing machine, stirring and shearing for 2 hours, and then filtering and cleaning. Standby; blend diatomite and water (the amount added is 3-5 ...

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PUM

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Abstract

The invention relates to the field of concrete, and provides recycled ceramsite for lightweight aggregate concrete and a preparation process thereof.The recycled ceramsite is prepared from, by weight, 20-25 parts of solid building waste, 5-15 parts of slag / diatomite compound, 4-6 parts of fly ash, 2-3 parts of agricultural waste and 0.2-1 part of composite fibers.The recycled ceramsite has the advantages that existing waste resources are utilized, raw materials are reasonably selected, and the recycled ceramsite is prepared; the ratio is optimized, and the prepared regenerated ceramic is low in water absorption rate, high in cylinder compressive strength, stable in structure and high in strength, has excellent mechanical properties, is applied to concrete products, remarkably improves the compressive strength, is good in water seepage prevention effect, and is worthy of popularization and application.

Description

technical field [0001] The invention relates to the technical field of recycled concrete materials, in particular to recycled ceramsite for lightweight aggregate concrete and a preparation process thereof. Background technique [0002] Ceramsite lightweight aggregate is ceramic particles, the surface of which is a hard shell of ceramic or enamel, with a large number of closed micropores inside. Ceramsite not only has light weight, heat insulation and low water absorption, but also has good fire resistance, shock resistance, impermeability, frost resistance, durability and alkali-aggregate reaction resistance. Therefore, ceramsite is widely used in construction, petroleum, chemical industry, agriculture, packing and filter materials and other fields. [0003] However, traditional ceramsite lightweight aggregate raw materials are natural minerals such as clay and shale, and the excessive use of natural minerals such as clay and shale will damage the cultivated land and the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B18/02
CPCC04B18/027C04B18/16C04B18/141C04B14/08C04B18/08C04B18/24C04B14/383C04B14/4643C04B18/023
Inventor 袁智张佐贵张超
Owner 南京广兰建材科技有限公司