Weak glue cementation water partition similar material and preparation method

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...

AI 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 method to solve the problem that the current similar materials cannot achieve a permeability coefficient of 10 -6 -10 -7 Problems with high water-repellency on the order of cm / s and low strength below 0.1MPa

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