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Sludge soft soil curing agent and sludge soft soil curing method

A technology of curing agent and soft soil, applied in the field of silt soft soil curing agent and silt soft soil curing, can solve problems such as low level of resource utilization, and achieve the effect of reduced production cost and good mechanical strength

Pending Publication Date: 2022-01-04
温州市渣土利用开发股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, my country's construction waste is mainly dumped and landfilled, and the level of resource utilization is less than 5%.

Method used

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  • Sludge soft soil curing agent and sludge soft soil curing method
  • Sludge soft soil curing agent and sludge soft soil curing method
  • Sludge soft soil curing agent and sludge soft soil curing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0089] Prepare the curing agent according to the material ratio in Table 1. The silt is taken from the tidal flat area of ​​coastal reclamation. The silt is in the shape of fluid plastic with a moisture content of 69.1%. Take a certain amount of the silt soft soil, mix it with curing agent powder according to the mass ratio of wet soil, and mix the silt and curing agent evenly. There are three kinds of curing agent mixing ratios, as shown in Table 1. Prepare 6 samples from the solidified sludge in the test of the mixing ratio of each curing agent. The diameter of the sample is 39.1mm and the height is 80mm. Among them, 3 samples are used for unconfined resistance In the compressive strength test, the average strength of the solidified soil under the mixing ratio of each curing agent is shown in Table 1.

[0090]

Embodiment 2

[0092] Prepare the curing agent according to the material ratio in Table 2. The silt is taken from the dredging silt of the river channel, which is in the shape of flow plastic and has a moisture content of 81.6%. Take a certain amount of the silt soft soil, mix it with curing agent powder according to the mass ratio of wet soil, and mix the silt and curing agent evenly. There are three kinds of curing agent mixing ratios, as shown in Table 2. Prepare 6 samples from the solidified sludge in the test of the mixing ratio of each curing agent. The diameter of the sample is 39.1mm and the height is 80mm. Among them, 3 samples are used for unconfined resistance In the compressive strength test, the average strength of the solidified soil under the mixing ratio of each curing agent is shown in Table 2.

[0093]

Embodiment 3

[0095] Prepare the curing agent according to the material ratio in Table 3. The silt is excavated from the basement, which is excavated silt with high water content, with a water content of 63.3%, and it is in the shape of fluid plastic. Take a certain amount of the silt soft soil, mix it with curing agent powder according to the mass ratio of wet soil, and mix the silt and curing agent evenly. There are three kinds of curing agent mixing ratios, as shown in Table 3. Prepare 6 samples from the solidified sludge in the test of the mixing ratio of each curing agent. The diameter of the sample is 39.1mm and the height is 80mm. Among them, 3 samples are used for unconfined resistance Compressive strength test. Table 3 shows the average strength of the stabilized soil under the mixing ratio of each curing agent.

[0096]

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Abstract

The invention belongs to the technical field of civil engineering, and particularly relates to a sludge soft soil curing agent and a sludge soft soil curing method. Broken bricks, concrete fragments and mortar fragments generated in the house demolition process are used as raw materials, part of exciting materials are added in a matched mode, the activity of building demolition waste is excited, the building demolition waste has a certain hydration characteristic, and the sludge soft soil curing agent is prepared according to the principle. The exciting materials include quicklime powder, cement, water glass, sodium hydroxide, ardealite powder and the like. The comprehensive production cost of the curing agent is obviously reduced compared with that of curing agents in the prior art. The prepared curing agent is uniformly mixed with sludge soft soil, so that the reinforced sludge has good mechanical strength and meets the requirement of engineering construction on bearing capacity, thereby achieving the purpose of resource utilization of building demolition garbage and soft soil sludge and achieving the effect of treating waste with waste.

Description

technical field [0001] The invention belongs to the technical field of civil engineering, and in particular relates to a silt soft soil curing agent and a silt soft soil curing method. Background technique [0002] During the dredging process of ports, rivers and lakes in my country's coastal areas and the development of urban underground space, a large amount of high-moisture content silt will be produced, and its bearing capacity is low. At present, landfill and dumping are mainly used to dispose of it. my country only throws more than 200 million m of silt into the ocean every year 3 , Landfill also requires a large area of ​​land as a silt landfill, which will pollute groundwater and soil resources accordingly. Solidification technology is one of the effective ways to deal with silt soft soil with high water content. It can rapidly increase the strength of soft soil in a short period of time. The reinforced silt soft soil can be used as backfill for building foundations ...

Claims

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Application Information

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IPC IPC(8): C04B28/26
CPCC04B28/26C04B2111/00017C04B2111/00767C04B2201/50C04B22/00C04B18/141C04B18/146C04B18/0445C04B22/062C04B22/064C04B18/167
Inventor 邵吉成骆嘉成袁波陈和平袁耿豪林丙嘉叶浩川
Owner 温州市渣土利用开发股份有限公司
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