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Similar materials of coral boulder limestone and coral skeleton limestone and its preparation method and application

A technology of similar materials and corals, applied in the field of geotechnical engineering three-dimensional physical model test, can solve the problems of difficult collection and preparation of reef limestone samples, restricting the in-depth development of experimental research, low success rate, etc., which is conducive to accurate prediction. and reproducibility, good model test application prospect, low cost effect

Inactive Publication Date: 2020-10-09
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When using experimental methods to carry out research, a large number of reef limestone samples are often required. However, the collection and preparation of reef limestone samples have disadvantages such as difficulty, high cost, and low success rate, which seriously restrict the in-depth development of experimental research.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Coral gravel limestone is similar to coral skeleton limestone, and the mass percentages of each component are as follows: 20 parts of quartz sand, 30 parts of barite powder, 18 parts of cement, 7 parts of high-strength gypsum, and 25 parts of water.

[0033] The above materials were weighed according to mass percentage, wherein the particle size of the quartz sand used in Example 1 was 40 mesh, the particle size of barite powder was 600 mesh, the cement was P.O 42.5 cement, and the particle size of high-strength gypsum was 1600 mesh . Mix and stir the taken out quartz sand, barite powder, cement and high-strength gypsum to make powder A; weigh water in proportion, add powder A to the weighed water, stir well and mix well; The material was poured into the mold, manually vibrated and pressed into shape; after the material was solidified (about 10 minutes), the model was demoulded, and cured for 7 days under the conditions of temperature 25°C and humidity ≥ 80%, and simila...

Embodiment 2

[0036] Coral gravel limestone is similar to coral skeleton limestone, and the mass percentages of each component are as follows: 25 parts of quartz sand, 20 parts of barite powder, 24 parts of cement, 12 parts of high-strength gypsum, and 19 parts of water.

[0037] The above materials were weighed according to mass percentage, wherein the particle size of quartz sand used in Example 2 was 40 mesh, the particle size of barite powder was 600 mesh, the cement was P.O 42.5 cement, and the particle size of high-strength gypsum was 1600 mesh . Mix and stir the taken out quartz sand, barite powder, cement and high-strength gypsum to make powder A; weigh water in proportion, add powder A to the weighed water, stir well and mix well; The material was poured into the mold, manually vibrated and pressed into shape; after the material was solidified (about 10 minutes), the model was demoulded, and cured for 7 days under the conditions of temperature 25°C and humidity ≥ 80%, and similar m...

Embodiment 3

[0040] Coral gravel limestone is similar to coral skeleton limestone, and the mass percentages of each component are as follows: 25 parts of quartz sand, 25 parts of barite powder, 21 parts of cement, 10 parts of high-strength gypsum, and 19 parts of water.

[0041] The above materials were weighed according to mass percentage, wherein the particle size of the quartz sand used in Example 3 was 40 mesh, the particle size of barite powder was 600 mesh, the cement was P.O 42.5 cement, and the particle size of high-strength gypsum was 1600 mesh . Mix and stir the taken out quartz sand, barite powder, cement and high-strength gypsum to make powder A; weigh water in proportion, add powder A to the weighed water, stir well and mix well; The material was poured into the mold, manually vibrated and pressed into shape; after the material was solidified (about 10 minutes), the model was demoulded, and cured for 7 days under the conditions of temperature 25°C and humidity ≥ 80%, and simil...

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Abstract

The invention discloses a coralline gravel limestone and coralline skeleton limestone similar material, a preparation method therefor and an application of the coralline gravel limestone and corallineskeleton limestone similar material. The similar material is prepared from the following ingredients in parts by weight: 20-25 parts of quartz sand, 20-35 parts of barite powder, 12-26 parts of cement, 6-18 parts of high-strength gypsum and 19-25 parts of water, wherein a mass ratio of the cement to the high-strength gypsum is (2: 1) to (3: 1). When the similar material is prepared from the quartz sand, the barite powder, the cement, the high-strength gypsum and the water according to the above proportioning ratio, density, mechanics parameters and the like of the prepared similar material are relatively close to those of real coralline gravel limestone and coralline skeleton limestone and can serve as similar materials of the two kinds of limestone, thereby facilitating related test researches.

Description

technical field [0001] The invention relates to the technical field of three-dimensional physical model tests of geotechnical engineering, in particular to a material similar to coral gravel limestone and coral skeleton limestone, a preparation method and application thereof. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] After the death of the reef-building coral group, the rock and soil body formed by its remains after a long geological process is a coral reef. The main component of coral reef rock mass is calcium carbonate, often called reef limestone. Modern coral reefs in the world are mainly distributed in the tropical Pacific Ocean, Indian Ocean and Atlantic Ocea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/14
CPCC04B28/146C04B2201/20C04B2201/50C04B14/06C04B7/02C04B14/368C04B22/002
Inventor 吴静付豪王新志张乐文张翔宇赵思琪赵笃坤杨霄孙铭鸿李金瑞
Owner SHANDONG UNIV
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