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Lightweight wallboard manufactured by using urban sludge and manufacturing method for lightweight wallboard

A technology of urban sludge and lightweight wallboard, applied in the field of lightweight wallboard, can solve the problems of poor compressive strength, unsatisfactory compressive strength, high shrinkage rate of lightweight wallboard, and achieve high compressive strength , low cost, excellent physical and mechanical properties

Active Publication Date: 2012-02-01
广东春天生态科技集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the above lightweight wallboards have high shrinkage rate and poor compressive strength, especially the compressive strength is far from meeting the requirements, so they cannot be used in occasions with high compressive requirements.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A lightweight wallboard manufactured from municipal sludge, which comprises the following raw materials in parts by weight: 40 parts of municipal sludge, 30 parts of construction waste, 40 parts of potassium feldspar powder, 10 parts of fly ash, 10 parts of expanded perlite, 40 parts of cement.

[0047] The construction waste was taken from a construction site in Dongguan, mainly consisting of 5 parts of bricks, 5 parts of soil and 20 parts of concrete blocks.

[0048] The particle size of potassium feldspar powder is below 100 mesh.

[0049] Fly ash is desulfurized fly ash.

[0050] The cement is ordinary Portland cement.

[0051] A kind of manufacture method of the lightweight wall panel that utilizes city sludge to manufacture, it comprises the following steps:

[0052] a. Grinding the construction waste with the above formula amount to below 200 meshes, mixing with the above formula amount of urban sludge and potassium feldspar powder evenly, granulating, roastin...

Embodiment 2

[0058] A lightweight wallboard manufactured from municipal sludge, which includes the following raw materials in parts by weight: 50 parts of municipal sludge, 50 parts of construction waste, 50 parts of potassium feldspar powder, 10 parts of fly ash, 30 parts of expanded perlite, 60 parts of cement.

[0059] The construction waste was taken from a construction site in Shenzhen, mainly consisting of 10 parts of bricks, 5 parts of tiles, 5 parts of stones, and 30 parts of concrete blocks.

[0060] The particle size of potassium feldspar powder is below 100 mesh.

[0061] Fly ash is desulfurized fly ash.

[0062] The cement is ordinary Portland cement.

[0063] A kind of manufacture method of the lightweight wall panel that utilizes city sludge to manufacture, it comprises the following steps:

[0064] a. Grinding the construction waste of the above formula amount to below 200 meshes, mixing with the above formula amount of urban sludge and potassium feldspar powder evenly, g...

Embodiment 3

[0070] A lightweight wallboard made from municipal sludge, comprising the following raw materials in parts by weight: 45 parts of municipal sludge, 35 parts of construction waste, 45 parts of potassium feldspar powder, 20 parts of fly ash, 15 parts of expanded perlite, 45 parts of cement.

[0071] The construction waste was taken from a construction site in Guangzhou, mainly consisting of 5 parts of bricks, 5 parts of stones, 5 parts of soil and 20 parts of concrete blocks.

[0072] The particle size of potassium feldspar powder is below 100 mesh.

[0073] Fly ash is desulfurized fly ash.

[0074] The cement is ordinary Portland cement.

[0075] A kind of manufacture method of the lightweight wall panel that utilizes city sludge to manufacture, it comprises the following steps:

[0076] a. Grinding the construction waste with the above formula amount to below 200 meshes, mixing with the above formula amount of urban sludge and potassium feldspar powder evenly, granulating, ...

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Abstract

The invention belongs to the technical field of lightweight wallboards, and in particular relates to a lightweight wallboard manufactured by using urban sludge and a manufacturing method for the lightweight wallboard. The lightweight wallboard comprises the following raw materials in part by weight: 40 to 60 parts of urban sludge, 30 to 50 parts of building garbage, 40 to 60 parts of potassium feldspar powder, 10 to 40 parts of fly ash, and 40 to 60 parts of cement. The adopted urban sludge does not need to be dehydrated and dried and can be directly used, so that the energy is saved, the cost is low and the production efficiency is high. The manufactured lightweight wallboard has low shrinkage, light weight and high compressive strength; the compressive strength reaches 60 to 120MPa; andthe lightweight wallboard has more excellent physical and mechanical properties compared with common natural stones. By using massive building garbage, urban sludge and fly ash, the manufactured product has low cost and high economic benefit, wastes are changed into valuable, environmental pollution is improved, and the lightweight wallboard has remarkable economic benefit and social benefit.

Description

technical field [0001] The invention belongs to the technical field of lightweight wallboards, in particular to a lightweight wallboard made from urban sludge and a manufacturing method thereof. Background technique [0002] In order to meet the different needs of the construction market, wall materials such as thermal insulation wall panels, sound insulation wall panels, exterior wall panels, and decorative wall panels have appeared on the market. The country and localities and relevant departments have clearly stipulated that wallboard should be listed as a new type of wall material that is mainly supported for development. The location of the wallboard is different, and its raw material composition and production process requirements are also different. Multiple varieties and serialization are the needs of the development of the situation. [0003] At present, in the production of existing light wall materials in China, Chinese invention patent ZL200610070220.7 introduce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B28/00
Inventor 林小明
Owner 广东春天生态科技集团有限公司
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