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Device and method for testing permeation flowing property of geopolymer slurry

A technology of geopolymer and flow properties, which is applied in the field of geopolymer slurry seepage flow performance test equipment, can solve the problem of fluidity and particle size that cannot be used to evaluate the seepage flow performance of geopolymer slurry, the effect is very different, and the Large diameter difference and other problems, to achieve the effect of simple structure, simple operation, high sensitivity

Active Publication Date: 2019-07-19
CHANGAN UNIV
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  • Claims
  • Application Information

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Problems solved by technology

Most fluidity tests usually refer to the MarsH measuring tube fluidity test method (GB / T 0505-2005 "Cement slurry fluidity test method (inverted cone method)"), but due to the fluidity and particle size of different polymer slurries There are large differences in diameter and other aspects, resulting in great differences in the effect of grouting with the same fluidity in infiltration grouting
The flow time of the conventional inverted cone method can only be used to investigate its flow performance, and cannot be used to evaluate the seepage flow performance of geopolymer grout in the injected body. At present, there are no test methods and methods for the seepage flow performance of geopolymer grouting materials. Corresponding indicators

Method used

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  • Device and method for testing permeation flowing property of geopolymer slurry
  • Device and method for testing permeation flowing property of geopolymer slurry
  • Device and method for testing permeation flowing property of geopolymer slurry

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Embodiment

[0046] The slurry storage pipe 3 is suspended and fixed by the support 1 and the support rod 2, and the percolation pipe 8 is suspended above the central axis of the measuring cup 11 to ensure that the slurry enters the measuring cup 11 to measure the quality after flowing out. The used slurry storage pipe 3 has an inner diameter of 100mm and a height of 80mm, and the maximum slurry storage pipe 3 can store 628ml of slurry; the wall of the slurry storage pipe is provided with a 500ml scale line 4; the inner diameter of the connecting pipe 7 is 10mm, and the height is 30mm. The bottom end of the slurry storage pipe 3 and the top of the seepage pipe 8 are connected by spiral threads; a slurry material control valve 6 is arranged at the connection between the connecting pipe 7 and the slurry storage pipe 3, and the slurry material control valve 6 controls the flow of the slurry material; the inner diameter of the seepage pipe 8 50mm, height 80mm, filler 9 is added in the percolati...

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Abstract

The invention discloses a device and method for testing the permeation flowing property of geopolymer slurry. The testing device is composed of a slurry storage pipe, a seepage pipe and a measuring cup, the geopolymer slurry seeps through the seepage pipe from the slurry storage pipe, the original volume of the geopolymer slurry is ensured through the slurry storage pipe, the seepage pipe is filled with a filler to simulate a seepage environment of the geopolymer slurry, the slurry storage pipe communicates with the seepage pipe through a connecting pipe, and the geopolymer slurry flowing property difference caused by different materials, mating ratios, admixtures and the like can be tested through the slurry storage pipe and the seepage pipe. By adopting the mass loss ratio r and the seepage speed v obtained through the device and the method, the permeation flowing property of the geopolymer slurry in the gravel filler can be accurately evaluated, the testing device is simple and easyto operate and suitable for being widely applied to determination and evaluation of the permeation flowing property of the geopolymer slurry, and the geopolymer slurry is applied and promoted in permeation grouting engineering advantageously.

Description

technical field [0001] The invention belongs to the innovation field of grouting material test equipment, and in particular relates to a test device and method for seepage flow performance of geopolymer slurry. Background technique [0002] Infiltration grouting, as one of pressure grouting methods, uses lower grouting pressure to infiltrate rock formations or soils without causing structural damage to the injected body. Since grouting is carried out in a permeable manner, the fluidity and permeability of the grouting material are required to be excellent. At present, there is no special test device and method for seepage flow performance of infiltration grouting materials, and only the concept of good fluidity means good permeability is used to evaluate the flow performance of grout materials. Most fluidity tests usually refer to the MarsH measuring tube fluidity test method (GB / T 0505-2005 "Test method for fluidity of cement paste (inverted cone method)"), but due to the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N11/06G01N15/08G01N5/04
CPCG01N11/06G01N15/08G01N5/04
Inventor 田中男张争奇刘恒彬刘鑫许铖杨建华董仕豪方滢
Owner CHANGAN UNIV
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