Novel prestressed duct mudjack material and preparation method of same

A duct grouting and prestressing technology, applied in the field of building material concrete admixtures, can solve the problems of neglecting the performance of prestressed duct grouting, comprehensive consideration of economy and environmental protection, etc. The effect of environmental value

Inactive Publication Date: 2017-07-14
GUIZHOU DR SHI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the conventional prestressed tunnel grout designs on the market only meet the construction requirements of JTG / T F50-2011 "Technical Specifications for Highway Bridge and Culvert Construction", while ignoring the comprehensive consideration of the performance, economy and environmental protection of the prestressed tunnel grout itself.

Method used

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  • Novel prestressed duct mudjack material and preparation method of same
  • Novel prestressed duct mudjack material and preparation method of same
  • Novel prestressed duct mudjack material and preparation method of same

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preparation example Construction

[0046] The present invention also proposes a preparation method of prestressed tunnel pressure slurry, which is characterized in that it comprises the following steps:

[0047] S1: Raw materials are put into the warehouse for raw material testing, prestressed tunnel pressure slurry test is carried out before each production, and the distribution ratio of components is fine-tuned to ensure that the excellent invention can be obtained, and the raw materials of each component that meet the requirements are accurately measured;

[0048] S2: Put the ordinary Portland cement measured in S1, industrial waste residue, mineral admixture, plastic expansion agent, expansion agent, and Wacker rubber powder into the mixer and continue stirring;

[0049] S3: After stirring S2 for 15-20 minutes, add water reducer, defoamer, air-entraining agent, and preservative to S1 one after another. The feeding time of each component is not less than 2 minutes, and continue stirring for 30 minutes after a...

Embodiment 1

[0057] A method for preparing a novel prestressed tunnel pressure slurry, comprising the following steps:

[0058] S1: Raw materials are put into the warehouse for raw material testing, prestressed tunnel pressure slurry test is carried out before each production, and the distribution ratio of components is fine-tuned to ensure that the excellent invention can be obtained, and the raw materials of each component that meet the requirements are accurately measured;

[0059] S2: Take 92.2 parts of ordinary Portland cement (P·O 42.5) measured in S1, 2.7 parts of phosphate slag, 3.3 parts of microbeads, 0.02 parts of CSA plastic expansion agent, 1.0 part of UEA expansion agent, Wacker glue Put 0.5 parts of the mixture into the mixer and continue stirring;

[0060] S3: After stirring S2 for 15-20 minutes, add 0.2 parts of water reducer, 0.005 parts of defoamer, 0.002 parts of air-entraining agent, and 0.01 parts of preservative into S1 one after another. The feeding time of each com...

Embodiment 2

[0067] A method for preparing a novel prestressed tunnel pressure slurry, comprising the following steps:

[0068] S1: Raw materials are put into the warehouse for raw material testing, prestressed tunnel pressure slurry test is carried out before each production, and the distribution ratio of components is fine-tuned to ensure that the excellent invention can be obtained, and the raw materials of each component that meet the requirements are accurately measured;

[0069] S2: Take 85 parts of ordinary Portland cement (P·O 42.5) measured in S1, 2 parts of phosphate slag, 2.5 parts of microbeads, 0.01 part of CSA plastic expansion agent, 0.5 part of UEA expansion agent, Wacker glue Put 0.7 parts of the mixture into the mixer for continuous stirring;

[0070] S3: After stirring S2 for 15-20 minutes, add 0.1 part of water reducer, 0.001 part of defoamer, 0.001 part of air-entraining agent, and 0.01 part of preservative into S1 one after another. The feeding time of each component ...

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Abstract

The invention relates to the field of building materials and discloses a novel prestressed duct mudjack material and a preparation method of same. The duct mudjack material includes 85-95 parts of ordinary Portland cement, 2-3.5 parts of industrial waste residues, 2.5-3.7 parts of a mineral admixture, 0.01-0.03 parts of a plastic expansion agent, 0.5-0.9 parts of Wacker powder, 0.5-1.5 parts of an expanding agent, 0.1-0.3 parts of a water reducing agent, 0.001-0.007 parts of an air entraining agent, and 0.001-0.003 parts of a defoamer. The duct mudjack material is free of layering and water bleeding, has good filling degree, is low in dry shrinkage, has stable volume and high strength, and achieves economic and environment-friendly utilization of the industrial waste residues.

Description

technical field [0001] The invention relates to the technical field of concrete admixtures for building materials, in particular to a novel prestressed tunnel pressure grout and a preparation method thereof. Background technique [0002] Most of the conventional prestressed tunnel grout designs on the market only meet the construction requirements of JTG / T F50-2011 "Technical Specifications for Highway Bridge and Culvert Construction", while ignoring the comprehensive consideration of the performance, economy and environmental protection of the prestressed tunnel grout itself. . Based on the purpose of building an environment-friendly enterprise and developing a series of environmentally-friendly products, our company has developed a new type of prestressed tunnel pressure slurry with excellent performance, economical and environmental protection by using improved phosphate slag to obtain the present invention, which has the following Features: [0003] At present, my coun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B111/70
CPCC04B28/04C04B2111/00017C04B2111/00663C04B2111/70C04B2201/50C04B18/12C04B18/08C04B2103/302C04B2103/50C04B2103/304C04B2103/60C04B2103/0068
Inventor 陈杰颜义方世昌皮永奇田应兵
Owner GUIZHOU DR SHI TECH
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