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Preparation method and construction method of domestic waste incineration slag comprehensive stabilized soil

A technology of domestic waste incineration and construction method, which is applied in the field of preparation of comprehensive stabilized soil for domestic waste incineration slag, can solve the problems of increasing processing cost and time, storage land occupation, etc., so as to avoid time and processing cost, save storage space, Effect of reducing land occupation and disposal costs

Inactive Publication Date: 2018-05-04
JIANGSU SINOROAD ENG TECH RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing studies on slag as aggregates mostly focus on its sorting, such as the patent document with application number 201410815012. time, and there are still underutilized components in the domestic waste incineration slag, and there are still problems such as stockpiling and occupying land

Method used

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  • Preparation method and construction method of domestic waste incineration slag comprehensive stabilized soil

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preparation example Construction

[0035] The invention discloses a method for preparing domestic waste incineration slag comprehensive stabilized soil, which comprises the following steps:

[0036] Step 1. Preparation of domestic waste incineration slag: Remove metal impurities from the domestic waste incineration slag, and then sieve it into particle sizes: greater than 4.75mm, 2.36-4.75mm, 1.18-2.36mm, 0.600-1.18mm, 0.300-0.600mm , 0.150-0.300mm, 0-0.150mm;

[0037] Step 2. Crushing the domestic waste incineration slag larger than 4.75mm in step 1, and re-screening in step 1, in order to avoid large slag that may cause uneven mixing and accumulation in stabilized soil. In the case of partial collapse, the slag with a larger particle size is crushed and pulverized to make the particle size less than 4.75mm, so as to improve the compaction performance of the roadbed, so as to maximize the utilization of the slag;

[0038] Step 3. Select the domestic waste incineration slag that has been screened in step 1, wh...

Embodiment 1

[0055] Household waste incineration slag: wherein the particle diameters are 5 parts, 10 parts, 10 parts by weight, respectively copies, 10 copies, 10 copies, 5 copies;

[0056] Curing agent: the parts by weight of slaked lime and coconut fiber are 40 parts and 5 parts respectively, and the dosage of the curing agent is 8% of the weight of domestic waste incineration slag;

[0057] Plain soil: three times the weight of domestic waste incineration slag;

[0058] Mixing water: 1% more by weight than the optimum water content.

Embodiment 2

[0060] Domestic garbage incineration slag: the parts by weight of particle diameters of 2.36-4.75mm, 1.18-2.36mm, 0.600-1.18mm, 0.300-0.600mm, 0.150-0.300mm, and 0-0.150mm are 10 parts, 20 parts, 20 parts respectively copies, 20 copies, 20 copies, 10 copies;

[0061] Curing agent: the parts by weight of slaked lime and hemp fiber are 60 parts and 10 parts respectively, and the dosage of the curing agent is 15% of the weight of domestic waste incineration slag;

[0062] Plain soil: three times the weight of domestic waste incineration slag;

[0063] Mixing water: 1% more by weight than the optimum water content.

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Abstract

The invention discloses a preparation method of domestic waste incineration slag comprehensive stabilized soil. The preparation method comprises the following steps: (1) preparing domestic waste incineration slag; (2) carrying out crushing; (3) respectively selecting 5-20 parts of domestic waste incineration slag with particle size of 2.36mm-4.75mm, 10-20 parts of domestic waste incineration slagwith particle size of 1.18mm-2.36mm, 10-20 parts of domestic waste incineration slag with particle size of 0.600mm-1.18mm, 10-20 parts of domestic waste incineration slag with particle size of 0.300mm-0.600mm, 10-20 parts of domestic waste incineration slag with particle size of 0.150mm-0.300mm and 5-10 parts of domestic waste incineration slag with particle size of 0-0.150mm; (4) doping a curingagent; and (5) adding the mixture obtained in the step (4) into plain soil, adding a proper amount of water, and stirring. After metals are removed from the domestic waste incineration slag, the domestic waste incineration slag is applied to fillings of a pavement, so that the sorting time and the treatment cost are avoided; and the domestic waste incineration slag can be maximally utilized, so that secondary waste is avoided.

Description

technical field [0001] The invention relates to the technical field of road engineering, in particular to a preparation method and a construction method of domestic waste incineration slag comprehensive stabilized soil. Background technique [0002] With the rapid advancement of urbanization, the amount of domestic waste is also increasing rapidly. There are currently three main methods of domestic waste disposal: sanitary landfill, incineration and composting. The domestic waste incineration technology can greatly reduce the capacity of domestic waste. Reduction, the incineration process can recycle heat energy to generate electricity, and the slag can be used as a renewable resource after the reduction. All countries use incineration technology as the main way of domestic waste treatment. After domestic waste is incinerated, slag, which accounts for about 25% of the total waste, will be produced. The generation of a large amount of slag increases the processing cost and in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/10
CPCC04B28/10C04B2111/0075C04B18/10C04B14/10C04B18/248C04B16/0633
Inventor 张万磊何文政成相飞杜骋
Owner JIANGSU SINOROAD ENG TECH RES INST CO LTD
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