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Iron spar powder, guartz sand cement rock-soil similar material and preparation process thereof

A technology of similar rock and soil, crystal sand, applied in energy engineering, mining, water conservancy, transportation fields, can solve the problems that materials cannot be reused, drying time is slow, and the range of mechanical parameters is narrow.

Inactive Publication Date: 2007-09-12
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The common disadvantages of the above rock-soil similar materials are: similar materials have low bulk density, slow drying time, narrow range of mechanical parameters, and materials cannot be reused.

Method used

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  • Iron spar powder, guartz sand cement rock-soil similar material and preparation process thereof
  • Iron spar powder, guartz sand cement rock-soil similar material and preparation process thereof
  • Iron spar powder, guartz sand cement rock-soil similar material and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Embodiment 1 is 1: 0.67: 0.30 in the weight ratio of iron ore powder, barite powder, quartz sand, and gypsum powder accounts for 2.5% of material gross weight, and the molar concentration of rosin alcohol solution is 7.5%, and rosin alcohol solution accounts for material gross weight. In the state of material ratio of 5% by weight, according to the determined material ratio and concentration, first weigh the iron ore powder, barite powder, quartz sand and gypsum powder and pour them into the mixer and stir them evenly, then add rosin alcohol The solution is further stirred, and the mixed material is poured into the steel mold, and the mixed material is compacted under the pressure of 2.0MPa under the press, and finally the mold is disassembled, and the pressed and formed test piece is taken out, and placed at room temperature Dry it for 2-3 days. Finally, the mechanical parameters of the dried material specimens are tested on the testing machine, and the corresponding p...

Embodiment 2

[0045] In embodiment 2, the weight ratio of iron ore powder, barite powder and quartz sand is 1: 1: 0.22, gypsum powder accounts for 4.0% of the material gross weight, and the molar concentration of rosin alcohol solution is 17.5%, and rosin alcohol solution accounts for the total material weight. In the state of material ratio of 5% by weight, according to the determined material ratio and concentration, first weigh the iron ore powder, barite powder, quartz sand and gypsum powder and pour them into the mixer and stir them evenly, then add rosin alcohol The solution is further stirred, and the mixed material is poured into the steel mold, and the mixed material is compacted under the pressure of 2.0MPa under the press, and finally the mold is disassembled, and the pressed and formed test piece is taken out, and placed at room temperature Dry it for 2-3 days. Finally, the mechanical parameters of the dried material specimens were tested on the testing machine, and the mechanic...

Embodiment 3

[0046] Embodiment 3 is 1: 0.43: 0.25 in the weight ratio of iron ore powder, barite powder, quartz sand, and gypsum powder accounts for 3.0% of material gross weight, and the molar concentration of rosin alcohol solution is 25.0%, and rosin alcohol solution accounts for material gross weight. In the state of material ratio of 4% weight, according to the determined material ratio and concentration, first weigh the iron ore powder, barite powder, quartz sand and gypsum powder and pour them into the mixer and stir them evenly, then add rosin alcohol The solution is further stirred, and the mixed material is poured into a steel mold, and the mixed material is compacted under a press with a pressure of 2.0 MPa. Finally, the mold is disassembled, and the pressed and formed test piece is taken out, and placed at room temperature Dry it for 2-3 days. Finally, the mechanical parameters of the dried material specimens were tested on the testing machine, and the mechanical parameters of ...

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Abstract

The invention relates to a method to produce equivalent material of iron crystal sand cemented rock soil that uses iron ore, barite powder and quartz sand as main aggregate, uses solution that is made up from rosin and alcohol as cementing agent, and uses gesso as regulator. Whisking the iron ore, barite powder and quartz sand, gesso, resin-alcohol solution to equal, pouring into steel mould, pressing the mixture, opening the mould, drying for 2-3 days, the invention could be gained. The invention has the advantages of high unit weight, large range of mechanics parameter, easy to process and low cost.

Description

technical field [0001] The invention relates to the fields of water conservancy, transportation, mining, and energy engineering, and in particular to similar materials that maintain similar physical and mechanical properties to rock-soil media in these fields. Background technique [0002] Entering the new century, with the continuous development of the national economy and the implementation of the western development strategy, my country has ushered in the peak period of large-scale engineering construction, such as the Three Gorges, South-to-North Water Diversion, West-East Gas Transmission, West-East Electricity Transmission, Qinghai-Tibet Railway and other large-scale projects. On the one hand, the construction of the project has played a major role in accelerating the development of my country's national economy, improving people's living standards and maintaining sustainable social development. At the same time, the development of these large-scale engineering projects ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B32/00
Inventor 张强勇李术才朱维申尤春安郭小红马国良陈继光李勇王汉鹏
Owner SHANDONG UNIV
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