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Preparation method of clay mineral bedrock soil cultural relic repairing material

A clay mineral and repair material technology, applied in the field of cultural relics repair and composite materials, can solve the problems of large differences in natural raw materials, poor product uniformity, and difficulty in standardized development and utilization, and achieves controllable components, stable content, Excellent product performance

Active Publication Date: 2020-07-10
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a stable and abundant raw material, simple preparation process, good product uniformity, and Inexpensive clay mineral bedrock soil relic repair material and preparation method thereof

Method used

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  • Preparation method of clay mineral bedrock soil cultural relic repairing material
  • Preparation method of clay mineral bedrock soil cultural relic repairing material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1 (semi-dry mixing)

[0016] In the mixer, mix 200 mesh sepiolite and slaked lime evenly at a mass ratio of 1:5; then spray distilled water 0.3 times the total mass of the mixed powder, keep stirring for 2 hours, and then bake it at 100°C for 12 hours; Then put it in a muffle furnace, calcined at 900°C for 4h, then cooled to room temperature, pulverized, and passed through a 200-mesh sieve to obtain the target product. According to XRD semi-quantitative analysis, the hydraulic components of calcium silicate and calcium aluminosilicate are 3%. The material has a high content of air-hardening components and a low content of hydraulic components. It is suitable for rock and soil cultural relics that require slow growth in the initial strength of the material and high porosity, ensuring its air permeability and water permeability, and at the same time providing a certain degree of early structural strength. .

Embodiment 2

[0017] Embodiment 2 (semi-dry mixing)

[0018] In the mixer, mix the 200-mesh montmorillonite and slaked lime evenly in a mass ratio of 3:1; then spray distilled water 0.5 times the total mass of the mixed powder, continue stirring for 2 hours, and then bake it at 100°C for 12 hours; Then put it in a muffle furnace, calcined at 1200°C for 1 h, then cooled to room temperature, pulverized, and passed through a 200-mesh sieve to obtain the target product. According to XRD semi-quantitative analysis, the hydraulic components of calcium silicate and calcium aluminosilicate are 7%. The material has a high content of air-hardening components and high hydraulic components. It is suitable for rock and soil cultural relics that require a high early strength growth rate. In the process of slowly increasing the strength of the material in the later stage, the material can also guarantee Good water permeability and air permeability.

Embodiment 3

[0019] Example 3 (wet mixing)

[0020] In the mixer, mix attapulgite and slaked lime with a mass ratio of 5:1 over 200 meshes and mix evenly; under the condition of stirring at 200r / min, add the mixed powder into distilled water with 10 times its mass and continue to stir for 4 hours, then mix The mixture was separated by centrifugation, and the filter cake was baked at 100°C for 12 hours, then placed in a muffle furnace, calcined at 900°C for 2 hours, cooled to room temperature, crushed, and passed through a 200-mesh sieve to obtain the target product. According to XRD semi-quantitative analysis, the hydraulic components of calcium silicate and calcium aluminosilicate are 14%. The material has the characteristics of high hydraulic component content and fast condensation speed when exposed to water. It is suitable for the restoration of rock and soil cultural relics with relatively high early strength requirements, and at the same time, the material can also maintain good wate...

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Abstract

The invention discloses a preparation method of a clay mineral bedrock soil cultural relic repairing material. The preparation method comprises the following steps: uniformly mixing clay mineral powder and lime powder by adopting a semi-dry process or a wet process to prepare a gelatinous mixture, drying the gelatinous mixture at the temperature of 80-100 DEG C for 10-12 hours, roasting at the temperature of 900-1200 DEG C for 2-4 hours, crushing, and screening with a 200-mesh sieve to obtain the rock soil cultural relic repairing material. XRD (X-Ray Diffraction) semi-quantitative analysis shows that the hydraulic component content of the rock soil cultural relic repairing material prepared by the method is 3-55%, and the rock soil cultural relic repairing material has the characteristicsof air hardness and hydraulic hardness and can meet the requirements of different rock soil cultural relics on strength and durability. The method has the advantages that the raw materials are easy to obtain, the product stability is good, the price is low, different clay minerals can be combined and regulated according to the characteristics of different rock soil cultural relic body materials so as to meet the use requirements of different rock soil cultural relics, and the restoration target of treating stone with stone is achieved.

Description

technical field [0001] The invention relates to a preparation method of a clay mineral bedrock soil cultural relic restoration material, and belongs to the field of cultural relic restoration and the technical field of composite materials. Background technique [0002] China has a long history, a vast territory, and numerous historical relics, providing valuable material entities for future generations to understand the political, economic, cultural, and technological levels of the time. It is a precious heritage of all mankind and is irreplaceable. Among these relics, quite a few are rock and soil cultural relics. Due to the long-term impact of the natural environment and human factors, they have all suffered damage to varying degrees, and some of them are facing the risk of annihilation. How to effectively protect them is an urgent problem to be solved. [0003] Rock and soil cultural relics are limited to the development level of productivity at that time, and the const...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/12C04B111/72
CPCC04B28/12C04B2111/72C04B14/042C04B14/104C04B14/102
Inventor 王爱勤邓雅楠牟斌王晓雯许江
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI