Construction method of porous pavement manufactured by rubbish incineration clinker through microorganism solidification

A technology of waste incineration ash and water-permeable pavement, which is applied in the field of solid waste resource utilization, can solve the problems of limited ecological and environmental benefits and application conditions, less consumption of solid waste ash, and difficulty in locking harmful components, so as to achieve good environmental protection and Ecological benefits, good economic benefits, and the effect of reducing high energy consumption

Active Publication Date: 2018-01-16
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0015] Technical problem: The purpose of this invention is to overcome the defects of large consumption of traditional building materials, low consumption of solid waste and ash, difficulty in locking harmful components, limited ecological and environmental benefits and application conditions in the existing waste incineration ash road construction technology, and will Microbe-induced calcium carbonate crystallization technology is used in the construction of urban waste incineration ash roads, and solves the problems of resource utilization of urban waste incineration ash and the construction of urban permeable roads on the sea surface with ecological, environmental protection and energy-saving methods

Method used

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  • Construction method of porous pavement manufactured by rubbish incineration clinker through microorganism solidification

Examples

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Embodiment 1

[0034] In this example, a construction method of microbial solidification of waste incineration ash permeable pavement is used in the construction of urban slow-moving greenways. After completion, the roads can be used for people to walk and non-motor vehicles to drive. The specific implementation includes the following steps:

[0035] a. Spread the unscreened garbage incineration ash on the leveled roadbed 1 and roll it compactly, the compacted thickness is 20cm, and the controlled compaction degree is 95%, as the base course 2;

[0036] b. A layer of geotextile is laid on the upper surface of the subbase 2 as the filter layer 3;

[0037] c. Take the waste incineration ash with a particle size less than 10mm after screening, spread it on the filter layer 3 and roll it compactly, the compacted thickness is 20cm, and the controlled compaction degree is 95%, as the base layer 4;

[0038] d. First, evenly spray CaCl on the upper surface of the base layer 4 with a volume equal to ...

Embodiment 2

[0047]In this example, a construction method of microbial solidification of waste incineration ash permeable pavement is used in the construction of parking lot pavement, and the completed parking lot is used for parking small motor vehicles. The specific implementation includes the following steps:

[0048] a. Spread the unscreened garbage incineration ash on the leveled roadbed 1 and roll it compactly, the compacted thickness is 20cm, and the controlled compaction degree is 95%, as the base course 2;

[0049] b. A layer of geotextile is laid on the upper surface of the subbase 2 as the filter layer 3;

[0050] c. Take the waste incineration ash with a particle size less than 10mm after screening, spread it on the filter layer 3 and roll it compactly, the compacted thickness is 20cm, and the controlled compaction degree is 95%, as the base layer 4;

[0051] d. First, evenly spray CaCl on the upper surface of the base layer 4 with a volume equal to 1 times the pore volume of t...

Embodiment 3

[0060] In this example, a construction method of microbial solidification of garbage incineration ash permeable pavement is used in the hardening construction of the public fitness square ground, and the completed site is used for people to carry out sports activities. The specific implementation includes the following steps:

[0061] a. Spread the unscreened garbage incineration ash on the leveled roadbed 1 and roll it compactly, the compacted thickness is 20cm, and the controlled compaction degree is 95%, as the base course 2;

[0062] b. A layer of geotextile is laid on the upper surface of the base layer 8 as the filter layer 3;

[0063] c. Take the waste incineration ash with a particle size less than 10mm after screening, spread it on the filter layer 3 and roll it compactly, the compacted thickness is 20cm, and the controlled compaction degree is 95%, as the base layer 4;

[0064] d. First, evenly spray CaCl on the upper surface of the base layer 4 with a volume equal t...

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Abstract

The invention relates to a construction method of porous pavement manufactured by rubbish incineration clinker through microorganism solidification. The construction method comprises the following step of a, paving the rubbish incineration clinker to a roadbed 1, and densely grinding the paved rubbish incineration clinker as a subbase layer 2; b, paving a geotextile on the upper surface of the subbase layer 2 as a filter layer 3; c, taking the rubbish incineration clinker, paving the taken rubbish incineration clinker on the filter layer 3, and densely grinding the paved rubbish incineration clinker to be used as a basic layer 4; d, spraying a CaCl2 solution on the upper surface of the basic layer 4, and after the CaCl2 solution completely infiltrates into the basic layer 4, spraying bacterial liquid and performing standing for 2h; e, spraying consolidating liquid on the upper surface of the basic layer 4, and performing standing for 12h; f, repeating the step e for 4-6 times; g, taking the rubbish incineration clinker, mixing the taken rubbish incineration clinker with medium sand so as to obtain a mixture, paving the obtained mixture on the basic layer 4, and densely grinding themixture to be used as a surface layer 5; h, firstly, spraying the CaCl2 solution on the upper surface of the surface layer 5, after the CaCl2 solution completely infiltrates into the surface layer 5,spraying the bacterial liquid, and performing standing for 2h; i, spraying the consolidating liquid on the upper surface of the surface layer 5, and performing standing for 12h; and j, repeating thestep i for 4-6 times, and completing construction.

Description

technical field [0001] The invention relates to a construction method for constructing a water-permeable pavement by using microorganisms to solidify municipal solid waste incineration ash, and belongs to the technical field of resource utilization of solid waste. Background technique [0002] The residual ash after municipal solid waste incineration for power generation is regarded as solid waste. At present, the main disposal method is to send it to landfill, which requires a large amount of landfill space. The municipal solid waste incineration ash as road construction material is an effective way for its reduction and resource utilization. The existing municipal solid waste incineration ash for road construction mainly includes ash-slag asphalt pavement, cement-stabilized ash-slag road base, mud-bound ash-slag pavement, and the like. Microbe-induced calcium carbonate crystallization technology (MICP technology) can also realize the cementation of bulk materials, but for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C11/22E01C7/32
Inventor 邵光辉陈相宇赵志峰
Owner NANJING FORESTRY UNIV
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