Roadbase mixture prepared from municipal sludge resourcefully treated by dedicated soil stabilizer

A technology for road base and municipal sludge, which is applied to mix road base. In the field, it can solve the problems of consuming original resource cost and destroying the ecological environment, and achieve the effect of reducing water absorption, reducing usage, and reducing cost

Inactive Publication Date: 2017-05-31
包宗义
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantage of this technology is that it destroys the ecological environment (exploding mountains to get rocks or digging rivers to get rocks), consumes a lot of original resources and is too expensive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The preparation of the road base compound of the present embodiment may further comprise the steps:

[0031] Crush the municipal sludge to a particle size not greater than 3mm. The municipal sludge comes from the secondary sedimentation tank sludge of a sewage treatment plant in Hangzhou, with a moisture content of 80%;

[0032] Add 100 parts by weight of municipal wet sludge and 15-20 parts by weight of quicklime in the first mixing bin, and mix to obtain a sludge mixture;

[0033] Add solid waste 7-13 times the volume of the sludge mixture into the first mixing bin, and mix to obtain the primary mixture; the solid waste is construction waste crushed by concrete.

[0034] The primary mixture is stacked for 5-30 days;

[0035] After mixing 100 parts by weight of primary mixture and 5-10 parts by weight of cement in the second mixing bin for 3-15 minutes, add 0.01-0.1 parts by weight of soil stabilizer and mix for 3-15 minutes, Add appropriate amount of water and mix w...

Embodiment 2

[0040] The preparation of the road base compound of the present embodiment may further comprise the steps:

[0041] Crush the municipal sludge to a particle size not greater than 3mm. The municipal sludge comes from the raw sludge (primary sedimentation tank and secondary sedimentation tank sludge) of a sewage treatment plant in Xuzhou, with a water content of 80%;

[0042] Add 100 parts by weight of municipal wet sludge and 15-20 parts by weight of quicklime in the first mixing bin, and mix to obtain a sludge mixture;

[0043] Add solid waste 7-13 times the volume of the sludge mixture into the first mixing bin, and mix to obtain the primary mixture; the solid waste is construction waste crushed by concrete.

[0044] The primary mixture is stacked for 5-30 days;

[0045] After mixing 100 parts by weight of primary mixture and 5-10 parts by weight of cement in the second mixing bin for 3-15 minutes, add 0.01-0.1 parts by weight of soil stabilizer and mix for 3-15 minutes, Ad...

Embodiment 3

[0050] The preparation of the road base compound of the present embodiment may further comprise the steps:

[0051] Crush the municipal sludge to a particle size not greater than 3mm. The municipal sludge comes from the primary sedimentation tank sludge of a sewage treatment plant in Yiwu, with a moisture content of 70%;

[0052] Add 100 parts by weight of municipal wet sludge and 15-20 parts by weight of quicklime in the first mixing bin, and mix to obtain a sludge mixture;

[0053] Add solid waste 7-13 times the volume of the sludge mixture into the first mixing bin, and mix to obtain the primary mixture; the solid waste is construction waste crushed by concrete.

[0054] The primary mixture is stacked for 5-30 days;

[0055] After mixing 100 parts by weight of primary mixture and 5-10 parts by weight of cement in the second mixing bin for 3-15 minutes, add 0.01-0.1 parts by weight of soil stabilizer and mix for 3-15 minutes, Add appropriate amount of water and mix with the ...

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Abstract

The invention relates to roadbase mixture prepared from municipal sludge resourcefully treated by a dedicated soil stabilizer. The roadbase mixture is prepared from the materials of 100 weight parts of initial mixture, 3 to 8 weight parts of cement and 0.01 to 0.1 weight part of the soil stabilizer; the initial mixture is prepared from 100 weight parts of municipal wet sludge, 15 to 20 weight parts of quicklime and solid waste; the soil stabilizer is prepared from 100 weight parts of water, 1 to 15 weight parts of surface active agent and 0.1 to 10 weight parts of boric acid or borate. The use amount of the solid waste is 7 to 13 times of the total volume of the mixed municipal wet sludge and the quicklime. The roadbase mixture has very good compressive strength.

Description

technical field [0001] The invention relates to a road base mix, in particular to a road base mix manufactured by using a special soil stabilizer to process municipal sludge as a resource. Background technique [0002] Municipal sludge refers to the mud or mud cake discharged from urban sewage treatment plants after concentration and dehydration. Generally, the water content is about 80%, and it is rich in organic matter and nutrients such as N, P, and K, as well as heavy metals and pathogenic bacteria. Harmful substances, if not disposed of properly, not only easily cause environmental pollution, but also cause waste of resources. With the rapid development of my country's economy and urbanization, the generation and quantity of municipal sewage have increased dramatically. [0003] With the further intensification of urbanization, there are more and more municipal sludge in our country, and a new process and technology is urgently needed to make municipal sludge be dispos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/10C04B24/20C04B18/04C04B18/16
CPCC04B18/0418C04B18/16C04B28/10C04B40/0039C04B2111/0075C04B2201/50C04B22/002C04B24/20C04B22/0013C04B7/02Y02W30/91
Inventor 包宗义
Owner 包宗义
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