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
2 Cites 2 Cited by

AI-Extracted Technical Summary

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...
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Method used

(4) the water that weighs weight is joined in the mixture of fine river sand, bentonite, gypsum three kinds of dry materials that...
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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.

Application Domain

Preparing sample for investigation

Technology Topic

River sandGypsum +9

Image

  • 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

  • Experimental program(1)
  • Effect test(1)

Example Embodiment

[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 the weighed methyl silicone oil to the fully stirred mixed material in step (4), and the stirring requirements are the same as in step (4).
[0060] (6) Heating the weighed solid paraffin to 60-65° C., after the paraffin is fully melted, immediately add it to the fully stirred proportioning material in step (5), and stir quickly;
[0061] (7) Put the well-mixed proportioning material into a standard sample mold with a diameter of 50±2mm and a height-to-diameter ratio of 2±0.2, compact and flatten it, and make a standard piece for mechanical performance testing. At the same time, choose a sample mold with a diameter of 50±2mm and a height of 38±2mm (the specification depends on the specific requirements of the selected permeability tester), fill it with the proportioning material, compact it, and flatten it to make a standard part for the permeability coefficient test ;
[0062] (8) After placing the sample at room temperature for 1 day, remove the mold, and place the sample in a constant temperature curing box at 25-30°C for 1 day;
[0063] (9) The rock mechanics testing machine is used to test the mechanical properties of the sample and the TST-55 permeability tester is used to test the permeability coefficient of the sample.

PUM

PropertyMeasurementUnit
Diameter1.18mm

Description & Claims & Application Information

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