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Backfill material prepared from engineering waste mud and preparation method of backfill material

A waste mud and engineering technology, applied in the direction of solid waste management, sustainable waste treatment, climate sustainability, etc., can solve the problems of difficult disposal of engineering waste mud and scarcity of natural backfill materials, so as to alleviate the shortage of natural resource supply, High construction efficiency and guaranteed backfill quality

Pending Publication Date: 2022-06-24
SHANGHAI TUNNEL ENG CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to overcome the defects of the existing technology, a backfill material prepared by using engineering waste mud and its preparation method are provided to solve the problem that the engineering waste mud is difficult to deal with, and the natural backfill materials used for engineering construction backfill are becoming more and more scarce.

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  • Backfill material prepared from engineering waste mud and preparation method of backfill material
  • Backfill material prepared from engineering waste mud and preparation method of backfill material

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Embodiment Construction

[0016] The present application will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described herein are only used to explain the related invention, but not to limit the invention.

[0017] It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present application will be described in detail below with reference to the embodiments.

[0018] The invention provides a backfill material prepared by using engineering waste mud, wherein the backfill material per cubic meter comprises: 350-700 parts by mass of engineering mud, 30-400 parts by mass of water, 90-150 parts by mass of cement, 172 parts by mass of ~250 parts by mass of fly ash, 400~500 parts by mass of coarse sand, 200~300 parts by mass of fine stone, 30~96 parts by mass of bentonite, 6.0~6.5 parts by mass of water reducing agent and 1...

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Abstract

The invention discloses a backfill material prepared from engineering waste slurry and a preparation method thereof, and each cubic meter of the backfill material comprises 350-700 parts by mass of engineering slurry, 30-400 parts by mass of water, 90-150 parts by mass of cement, 172-250 parts by mass of fly ash, 400-500 parts by mass of coarse sand, 200-300 parts by mass of fine stone, 30-96 parts by mass of bentonite, 6.0-6.5 parts by mass of a water reducing agent and 11.5-12 parts by mass of an accelerator. The water content of the engineering slurry is less than 320%. The problems that the engineering waste mud is difficult to treat, and natural backfill materials used for engineering construction backfill are increasingly scarce are solved.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a backfill material prepared by utilizing engineering waste mud and a preparation method thereof. Background technique [0002] With the acceleration of urbanization in our country, various engineering constructions have entered a peak period of rapid development. However, large amounts of mud are generated during building construction. At present, the mud produced by some domestic construction projects is directly discharged on the spot, causing damage to the surrounding natural vegetation and land pollution. [0003] At the same time, a lot of backfill materials are needed in engineering construction (pipe trench backfill in municipal engineering, "three back" backfill in highway engineering, and roadbed backfill, etc.). Moreover, there are problems of narrow construction work surface and difficult material transportation during the construction of the backfill ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B18/16
CPCC04B28/00C04B18/16C04B2111/00663C04B18/08C04B14/06C04B14/02C04B14/104C04B2103/302C04B2103/12Y02W30/91
Inventor 董欢张冠军侯永茂李欢欢陈龙任翔陶后兴庞博万敏陈妍希肖晓春倪雪峰孙卫国汪涛葛伟伟
Owner SHANGHAI TUNNEL ENG CO LTD
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