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Macromolecular slurry curing agent and preparation method thereof

A mud solidifying agent and polymer technology, which is applied in the field of polymer mud solidifying agent and its preparation, can solve the problems of inconspicuous on-site solidification effect of high water content mud, lack of system allocation of selection and mixing amount, consumption of mineral resources, etc. To achieve the effect of convenient mechanical stirring construction, good compactness and good water stability

Inactive Publication Date: 2017-08-08
UNIV OF SHANGHAI FOR SCI & TECH
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  • Claims
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Problems solved by technology

[0004] At present, traditional cement inorganic curing agents mainly rely on construction experience combined with on-site tests to prepare. The selection of various materials and the amount of mixing are lack of systematic deployment, and the amount of cement is as high as more than 40%. Mineral resources are seriously consumed. When the water content of the mud is greater than When it is 100%, the mixing workability is poor, the curing time is long, the strength is low, and it is easy to shrink and crack, etc.
Foreign polymer mud curing agents are protected by patented technology, and the cost of introduction is high. At the same time, the on-site curing effect for mud with high water content is not obvious

Method used

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  • Macromolecular slurry curing agent and preparation method thereof
  • Macromolecular slurry curing agent and preparation method thereof
  • Macromolecular slurry curing agent and preparation method thereof

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Embodiment Construction

[0021] In order to make the technical means, creative features, goals and effects of the present invention easy to understand, the following examples will specifically illustrate the polymer mud curing agent of the present invention and its preparation method in conjunction with the accompanying drawings.

[0022] In step 1, fly ash, cement and quicklime are sequentially added into the mixer for sealing. In this embodiment, the fly ash is Class I high-calcium fly ash; the cement is 4.25 # Ordinary Portland cement; quicklime is in powder form, with a fineness of 120 mesh and a purity of over 98%. The manufacturer is Tianjin Zhiyuan Chemical Reagent Co., Ltd.

[0023] In step 2, the sealed stirrer was stirred at a low speed for 5 minutes, then stirred at a high speed for 10 minutes, and then stirred at a low speed for 5 minutes to obtain a mixture 1.

[0024] In step 3, the triethanolamine, polyacrylamide, polyvinyl alcohol and epoxy resin were placed in a low-temperature prote...

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Abstract

The invention provides a macromolecular slurry curing agent, which is characterized by being prepared from the ingredients by mass percent: 30-50% of fly ash, 5-12% of lime, 20-30% of cement, 0.5-0.8% of triethanolamine, 0.05-0.3% of polyacrylamide, 0.05-0.1% of polyvinyl alcohol, and 0.05-0.1% of epoxy resin. The macromolecular slurry curing agent provided by the invention has the advantages of fast curing rate, high strength, low cost, energy conservation and environmental protection and the like, and can be applied to curing of high-water-content slurry or soil.

Description

technical field [0001] The invention relates to the technical research field of a mud curing agent, in particular to a polymer mud curing agent and a preparation method thereof. Background technique [0002] With the rapid development of my country's urban modernization, the environmental problems of underground buildings have become increasingly prominent. In the construction of urban underground structures, such as: subway tunnel shield excavation, high-rise building pile foundation construction, municipal pipeline jacking, etc., a large amount of waste mud is produced. According to incomplete statistics, in Shanghai alone, the construction of a subway station will generate 87,000 m 3 Waste mud, excavating a subway tunnel with a diameter of 6m produces 68,000 m of waste mud per kilometer 3 , as of the end of 2015, Shanghai Metro has built 366 stations, the total length of tunnels is 617 kilometers, and the total output of waste mud is about 74 million m 3 . At present,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/10
CPCC04B28/10C04B2201/50C04B18/08C04B7/02C04B24/122C04B24/2652C04B24/2623C04B24/281
Inventor 蒙强邵俐张雅鑫施倩芸陈宇轩吕沛
Owner UNIV OF SHANGHAI FOR SCI & TECH
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