Inorganic mixture containing sludge and preparation method of inorganic mixed material

A technology for mixing materials and sludge is applied in the field of inorganic mixing materials containing sludge and its preparation, which can solve the problems of natural resource depletion and environmental impact, and achieve the effects of protecting the environment, preventing secondary pollution and mild operating conditions.

Inactive Publication Date: 2018-06-15
北京兴华通达无机料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the rapid development of my country's urbanization process, large-scale new repairs, renovations and expansions of municipal roads, the aggregates in the inorganic mixture laid on the bottom of the road mainly come from mountain gravel. The excessive mining and extraction of these materials not only affects the The environment has a greater impact and the limited natural resources are facing depletion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0038] Another aspect of the present invention relates to a kind of preparation method that contains the inorganic mixture of sludge, and it mainly comprises the steps:

[0039] The recycled sludge aggregate is obtained by drying 80-120 parts of dehydrated and air-dried sludge with 2-3 parts of lime, and mixing the recycled sludge aggregate, mountain gravel and fly ash with an appropriate amount of water After mixing and stirring evenly, add the remaining components and continue stirring. After mixing and stirring evenly, the test is qualified, and the inorganic mixture is obtained.

[0040] In one embodiment of the present invention, the dehydrated and air-dried sludge is dried with lime, and then undergoes 1-2 stages of crushing, blowing to remove impurities and vibration analysis and screening to obtain sludge regenerated aggregate.

[0041] In one embodiment of the present invention, centralized plant mixing is used for mixing and stirring, and the mixing capacity is contr...

Embodiment 1

[0045] On the one hand, this embodiment relates to a sludge-containing inorganic mixture, including the following components in the following parts by weight: 50 parts of recycled sludge aggregate, 10 parts of lime, 15 parts of mountain gravel, and 10 parts of fly ash share.

[0046] As a preferred embodiment, the effective calcium and magnesium content of the sludge regenerated aggregate is >20%, its particle size is below 25mm, and its particle size below 5mm contains 70%, and its moisture content is 10%-20%.

[0047] As a preferred embodiment, the weight ratio of lime and fly ash is controlled to be 1:1.

[0048] As a preferred embodiment, the maximum particle size of mountain gravel is less than 25mm, and the mass ratio of mountain gravel between 25-20mm, 20-10mm, 10-5mm, and 5-0mm is controlled to be 15:28: 19:40.

[0049] Another aspect of this embodiment relates to a method for preparing an inorganic mixture containing sludge, which mainly includes the following steps...

Embodiment 2

[0055] On the one hand, this embodiment relates to a sludge-containing inorganic mixture, including the following components in the following parts by weight: 80 parts of recycled sludge aggregate, 12 parts of lime, 5 parts of mountain gravel, and 16 parts of fly ash share.

[0056] As a preferred embodiment, the effective calcium and magnesium content of the sludge regenerated aggregate is >20%, its particle size is below 25mm, and its particle size below 5mm contains 75%, and its moisture content is 10%-20%.

[0057] As a preferred embodiment, the weight ratio of lime and fly ash is controlled to be 3:4.

[0058] As a preferred embodiment, the maximum particle size of mountain gravel is less than 25mm, and the mass ratio of mountain gravel between 25-20mm, 20-10mm, 10-5mm, and 5-0mm is controlled to be 10:26: 17:40.

[0059] Another aspect of the present invention relates to a preparation method of an inorganic mixture containing sludge, which mainly includes the following...

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Abstract

The invention discloses an inorganic mixed material containing sludge and a preparation method of the inorganic mixed material. The inorganic mixed material comprises the following components in partsby weight: 50-80 parts of a sludge recycled aggregate, 3-12 parts of lime, 5-20 parts of mountain macadam and 5-16 parts of coal ash. According to the inorganic mixed material provided by the invention, sludge with low cost is adopted to replace mountain macadam with relatively high cost in the prior art, so that the waste sludge is changed into wealth while the production cost of the inorganic mixed material is reduced, and the environment is fully protected.

Description

technical field [0001] The invention belongs to the field of inorganic mixture processing, and in particular relates to an inorganic mixture containing sludge and a preparation method thereof. Background technique [0002] Inorganic mixture refers to mixing a certain amount of cement, or lime, or industrial waste slag and other inorganic binders and water into crushed or undisturbed loose soil, and mixing the obtained mixture. After compaction and curing, the compressive strength obtained meets the specified material. Since the inorganic mixture can stabilize the stiffness of the material between flexible materials (such as asphalt mixture) and rigid materials (such as cement concrete), it is also called semi-rigid material, and the structural layer paved by it is called semi-rigid Floor. [0003] Because the inorganic mixture has the advantages of good economy, good stability, strong frost resistance, strength and stiffness increase with its age, etc., it is an ideal mate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/12C04B28/04
CPCC04B28/04C04B28/12C04B2111/0075C04B2201/20C04B2201/50C04B18/08C04B18/0427C04B14/02
Inventor 靳亮
Owner 北京兴华通达无机料有限公司
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