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Large-scale resource utilization method for engineering residue soil

A technology of engineering slag and recycling, applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problem of low efficiency of solidification and utilization of engineering slag, uneven quality of solidified slag, and unenvironmental protection in the production process To achieve the effect of improving the recycling rate, ensuring the uniformity of physical properties, improving the uniformity and mixing efficiency

Pending Publication Date: 2022-03-04
上海志昌建设工程有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the disadvantages in the prior art that the quality of solidified muck mixed with mixing is uneven and unstable, and the production process is not environmentally friendly, resulting in low solidification and utilization efficiency of engineering dregs. Large-scale resource utilization method of muck

Method used

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  • Large-scale resource utilization method for engineering residue soil
  • Large-scale resource utilization method for engineering residue soil
  • Large-scale resource utilization method for engineering residue soil

Examples

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Effect test

Embodiment 1

[0044] This embodiment provides a method for large-scale resource utilization of engineering dregs, including the following steps:

[0045] S1: Analyze the physical properties of multiple piles of engineering slag, and according to the results of the physical property analysis, divide the engineering slag with similar physical properties into one category and pile them together, and then carry out precipitation treatment on the classified engineering slag to obtain pretreated engineering slag earth. Among them, the physical property analysis of engineering dregs includes water content, void ratio test analysis, liquid-plastic limit test analysis and particle composition test analysis, and the water content, void ratio, liquid limit, plastic limit and particle composition test analysis of engineering dregs are obtained respectively. Particle distribution (see Table 1 for particle distribution); precipitation treatment includes using an excavator to excavate and dry the engineer...

Embodiment 2

[0060] This embodiment provides a method for large-scale resource utilization of engineering dregs, including the following steps:

[0061] S1: Analyze the physical properties of multiple piles of engineering slag, and according to the results of the physical property analysis, divide the engineering slag with similar physical properties into one category and pile them together, and then carry out precipitation treatment on the classified engineering slag to obtain pretreated engineering slag earth. Wherein, the physical property analysis of the engineering dregs includes the water content and void ratio test analysis, the liquid-plastic limit test analysis and the particle composition test analysis of the engineering dregs, respectively obtaining the water content, void ratio, liquid limit, Plastic limit and particle distribution (see Table 2 for particle distribution); the classified stacking and precipitation of the engineering dregs refers to that the above-mentioned engin...

Embodiment 3

[0076] A kind of application of solidified slag-soil mixture in road engineering, concrete steps are as follows:

[0077] The solidified slag-soil mixture prepared in the above-mentioned embodiment 3 is used as road engineering subgrade filling, and the filling thickness is 20cm. After paving, the on-site deflection test is carried out. Under load conditions, the road structure paved with the consolidated soil mixture produces little deformation. This shows that the solidified muck-soil mixture can significantly improve the overall strength of the road structure after being used for the pavement of the road structure layer.

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Abstract

The invention relates to the technical field of muck utilization, in particular to an engineering muck large-scale resource utilization method which comprises the following steps: S1, classifying and dewatering engineering muck; s2, separating, crushing and screening the engineering residue soil obtained in the step S1 to obtain semi-finished product residue soil; and S3, mixing and stirring the semi-finished product muck obtained in the step S2 and a curing agent according to the mass percent to obtain a cured muck mixture. The composite material is used for paving a road subgrade or a pavement subbase layer, a reinforced protective layer can be formed, the subgrade below the reinforced protective layer can be protected, a solid foundation is provided for a road pavement structure layer above the reinforced protective layer, and on the basis of not introducing other raw materials such as cement, the regeneration utilization rate of the construction waste is effectively increased; and comprehensive and efficient utilization of building waste resources is promoted.

Description

technical field [0001] The invention relates to the technical field of slag utilization, in particular to a large-scale resource utilization method of engineering slag. Background technique [0002] In the process of urban development, a large amount of construction waste can be generated in the process of new construction, reconstruction and expansion of construction projects, as well as the repair and demolition of buildings, structures, pipe networks and other projects, the main component of which is engineering slag. With the construction and development of the city, more and more engineering dregs will be produced, and the types of engineering dregs soil samples will become more and more complex. If the slag can be modified and used as road construction materials, it can not only be used for municipal construction in the area to save engineering costs, but also solve various environmental problems in the process of slag transportation. On the one hand, resource utiliza...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B26/00C04B18/16C04B20/02
CPCC04B28/00C04B26/00C04B18/16C04B20/026C04B2111/0075C04B2201/50C04B20/02Y02W30/91
Inventor 王利俊赵建新梅健祁文洋王唐斌秘志辉江舒扬韩争吕小强苏小燕孙红丽王冲张宇苏东兰
Owner 上海志昌建设工程有限公司
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