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Coral sandstone and coral gravel limestone similar materials and their preparation methods and applications

A technology similar to materials and coral sand, applied in the direction of analysis materials, test sample preparation, instruments, etc., can solve the problems that restrict the progress of reef limestone test research, difficulty in collecting reef limestone samples, and low success rate, and achieve The effect of wide coverage, wide application range and low cost

Inactive Publication Date: 2020-11-03
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the collection of reef limestone samples is difficult, costly and has a low success rate, which seriously restricts the progress of reef limestone experimental research.

Method used

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  • Coral sandstone and coral gravel limestone similar materials and their preparation methods and applications
  • Coral sandstone and coral gravel limestone similar materials and their preparation methods and applications
  • Coral sandstone and coral gravel limestone similar materials and their preparation methods and applications

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The formulations of similar materials for coral reef limestone are shown in Table 1.

[0033] Table 1

[0034]

[0035]

[0036] The particle size of the barite powder selected in Table 1 is 600 mesh, the particle size of the calcareous sand is 30 mesh, the particle size of the quartz sand is 40 mesh, the cement is P.O 42.5 cement, and the particle size of the high-strength gypsum is 1600 mesh.

[0037] The preparation method comprises the following steps: mixing and stirring the weighed barite powder, quartz sand, calcareous sand, cement and high-strength gypsum to make a mixed powder; weighing water in proportion, and adding the mixed powder into the weighed In the water, fully stir and mix evenly; pour the mixed material into the mold, and manually vibrate to shape; after the material is solidified (about 10 minutes), demould the model, and under the conditions of temperature 25°C and humidity ≥ 80% After curing for 7 days, similar materials can be obtained. ...

Embodiment 2

[0042] The formulations of similar materials for coral reef limestone are shown in Table 3.

[0043] table 3

[0044]

[0045]

[0046] The particle size of the barite powder selected in Table 3 is 700 mesh, the particle size of the calcareous sand is 40 mesh, the particle size of the quartz sand is 50 mesh, the cement is P.O 42.5 cement, and the particle size of the high-strength gypsum is 1600 mesh.

[0047] The preparation method comprises the following steps: mixing and stirring the weighed barite powder, quartz sand, calcareous sand, cement and high-strength gypsum to make a mixed powder; weighing water in proportion, and adding the mixed powder into the weighed In the water, fully stir and mix evenly; pour the mixed material into the mold, and manually vibrate to shape; after the material is solidified (about 10 minutes), demould the model, and under the conditions of temperature 25°C and humidity ≥ 80% After curing for 7 days, similar materials can be obtained. ...

Embodiment 3

[0052] The formulations of similar materials for coral reef limestone are shown in Table 5.

[0053] table 5

[0054] components Formula (by mass percentage) barite powder 29％ Quartz sand 14％ calcareous sand 10％ High Strength Gypsum 8.5％ cement 14.5％ water 25％

[0055] The particle size of the barite powder selected in Table 3 is 700 mesh, the particle size of the calcareous sand is 40 mesh, the particle size of the quartz sand is 50 mesh, the cement is P.O 42.5 cement, and the particle size of the high-strength gypsum is 1600 mesh.

[0056] The preparation method comprises the following steps: mixing and stirring the weighed barite powder, quartz sand, calcareous sand, cement and high-strength gypsum to make a mixed powder; weighing water in proportion, and adding the mixed powder to weigh In the water, fully stir and mix evenly; pour the mixed material into the mold, and manually vibrate to shape; after the material is solidi...

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Abstract

The invention discloses a coralline calcarenite and coralline calcirudite similar material, a preparation method therefor and an application of the coralline calcarenite and coralline calcirudite similar material. The similar material comprises the ingredients: aggregates: barite powder, quartz sand and calcareous sand; and cementing materials: cement and high-strength gypsum. According to the similar material and the preparation method therefor, provided by the invention, the brittleness of the material is improved by selecting the barite powder, the quartz sand and the high-strength gypsum,and the porosity of the material is improved due to the calcareous sand; and the materials are shaken up during preparation, so that the improvement on the strength of the material and exertion of brittle characteristic of the high-strength gypsum are facilitated. Normal-temperature curing is employed after preparation is complete, the setting time is short, characteristics of coralline calcarenite and coralline calcirudite are successfully simulated, the production process is simple, the cost is low, the performance is stable, and technical requirements of three-dimensional physical model tests are met.

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 sandstone and coral gravel 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. China's coral reefs are mainly distributed in the South China Sea, where coral reefs are widely distributed and geographicall...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/14G01N1/28G01N1/38G01N1/36
CPCC04B28/146C04B2201/50G01N1/28G01N1/286G01N1/36G01N1/38C04B14/368C04B14/06C04B7/02C04B22/002C04B18/027
Inventor 吴静张翔宇王新志张乐文付豪赵笃坤狄胜同孙铭鸿李金瑞赵思琪
Owner SHANDONG UNIV
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