Weak glue cementation water partition similar material and preparation method

A technology of similar materials and cemented materials, which is applied in the field of similar materials with weak cementation and strong water-repellent properties and its preparation, can solve the problems of high water-repellent properties, low strength, and inability to realize permeability coefficients, etc., and achieve the effect of strong water-repellent properties

Inactive Publication Date: 2017-02-15
CHINA UNIV OF MINING & TECH
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Problems solved by technology

[0007] Based on the current research status of the proportion of similar materials, the present invention proposes a similar material with weak cementation and strong water resistance and a preparation met

Method used

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  • Weak glue cementation water partition similar material and preparation method
  • Weak glue cementation water partition similar material and preparation method
  • Weak glue cementation water partition similar material and preparation method

Examples

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[0053] Example 1: A low-strength, weakly cemented, strong water-repellent similar material ratio, the ratio series are 891 2 series, 891 3 series, 891 4 series, 891 5 series:

[0054] The detailed ratio experiment process is as follows:

[0055] (1) Select a standard sieve with a diameter of 1.18mm to screen fine river sand with sufficient particle size;

[0056] (2) According to the proportioning requirements of each component material of different proportioning series, take the fine river sand, bentonite, gypsum, solid paraffin, methyl silicone oil and water of the required weight respectively with an electronic scale;

[0057] (3) fully mix the fine river sand, bentonite, and gypsum dry material that weighed, and stir evenly;

[0058] (4) Add the water weighed into the mixture of fine river sand, bentonite and gypsum three dry materials stirred in step (3), and fully stir to ensure that the material is not agglomerated, hardened, or large particles;

[0059] (5) Add t...

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Abstract

Provide is weak glue cementation water partition similar material, belonging to geotechnical engineering similar material and preparation method. The weak glue cementation water partition similar material takes fine river sand, and dilated lubricating soil as an aggregate, plaster, and solid ceresin wax as a gluing material, cymene oil as additives. The weak glue cementation water partition similar material is prepared from, by weight, 8 parts of fine river sand (pellet level gradation: pellet way & lt; 1.18 mm); 0.9 part of pellet limit 220-325 target quality sodium base dilated lubricating soil; 0.1 part of pellet limit 1000 target plaster; 0.02-0.05 part of fusing spot 58 DEG solid ceresin wax; 1-1.8 parts of stickiness limit 1000 CS cymene oil (seizing sand, soil, plaster gross weight respectively 1/5, 1/6, 1/7, 1/8, 1/9); 1 part of hydrant. At the same time, taking single shaft magnitude and permeation parameter as judging parameters, the method develops the similar material successive proportioning of 8912, 8913, 8914, 8915, can satisfy the successive proportioning requirements of similar material proportioning for single shaft pressure resisting magnitude 8-93 kPa, permeation parameter 2-81 x 10-7 cm/s (scaling gradation 10-6 - 10-7 cm/s ). The similar material successive proportioning side improves the similar material proportioning method for weak glue cementation, low magnitude, and strong water partition, and provides a reference for researching similar material proportioning.

Description

technical field [0001] The invention relates to a similar material in geotechnical engineering and a preparation method thereof, in particular to a weakly cemented and strong water-repellent similar material and a preparation method. Background technique [0002] Low-strength, weakly cemented, and stable water-repellent rock formations generally exist in the Mesozoic Jurassic and Cretaceous strata, such as the northwestern regions represented by Xinjiang, Inner Mongolia, Ningxia, and Gansu, where the diagenetic time is late, the cementation is poor, and the strength Low, easy to weather, easy to swell and muddy when exposed to water, especially in Xinjiang, the rock mass strength is only 1 / 5-1 / 10 of the same lithology strength in other regions. The Northwest region has many varieties and rich reserves of natural resources, and at the same time is located in a special geographical location of the new national strategy of “One Belt, One Road”. It will be the focus of the adjus...

Claims

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Application Information

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IPC IPC(8): G01N1/38
CPCG01N1/38
Inventor 范钢伟张世忠熊路长张东升周鹤张斌
Owner CHINA UNIV OF MINING & TECH
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