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Oyster ash silt slurry for repairing hollow drums and cracks and anchoring of mural and preparation method thereof

A hollowing and cracking technology, which is applied in the field of cracks and oyster ash powder soil slurry for anchoring and its preparation, and mural repairing hollowing, can solve the problems of mural surface cracking, mural falling off, bulging, etc., and achieve small shrinkage and final The setting time is short and the effect of ensuring the reinforcement effect

Inactive Publication Date: 2020-07-31
中国文化遗产研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Hollowing generally causes the surface of the mural to crack and bulge, and in severe cases, the mural will fall off due to the influence of the mural’s own gravity

Method used

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  • Oyster ash silt slurry for repairing hollow drums and cracks and anchoring of mural and preparation method thereof
  • Oyster ash silt slurry for repairing hollow drums and cracks and anchoring of mural and preparation method thereof
  • Oyster ash silt slurry for repairing hollow drums and cracks and anchoring of mural and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A kind of oyster ash silt slurry for repairing hollow drums, cracks and anchoring of murals, the ratio of raw materials is as follows according to the stated requirements:

[0025] 1) Oyster ash: 1 part by mass

[0026] 2) Silt: 3 parts by mass

[0027] 3) Water: 2.08 parts by mass

[0028] The fluidity of the slurry obtained by the above ratio is 200mm. The above-mentioned oyster ash is calcined at 1000°C for 2 hours, then deliquified and finely ground into ash by dry method. Its hydraulic component β-type calcium silicate β- The CS content is 6.2%, the air-hardening component calcium oxide CaO content is 92.8% (mass percentage), the other content is 1.0%, and the particle diameter is 180-200 mesh;

[0029] The particle size of the above-mentioned silt is 80 mesh to 100 mesh, and the total soluble salt content is ≤0.5%;

Embodiment 2

[0031] A kind of oyster ash silt slurry for repairing hollow drums, cracks and anchoring of murals, the ratio of raw materials is as follows according to the stated requirements:

[0032] 1) Oyster ash: 1 part by mass

[0033] 2) Silt: 9 parts by mass

[0034] 3) Water: 4.7 parts by mass

[0035] The fluidity of the slurry obtained through the above ratio is 206mm. The above-mentioned oyster ash is roasted at 1000°C for 2 hours by the oyster shell, and then deliquified and finely ground into ash by dry method. Its hydraulic component β-type calcium silicate β- The CS content is 6.2%, the air-hardening component calcium oxide CaO content is 92.8% (mass percentage), the other content is 1.0%, and the particle diameter is 180-200 mesh;

[0036] The particle size of the above-mentioned silt is 80 mesh to 100 mesh, and the total soluble salt content is ≤0.5%;

Embodiment 3

[0038] A kind of oyster ash silt slurry for repairing hollow drums, cracks and anchoring of murals, the ratio of raw materials is as follows according to the stated requirements:

[0039] 1) Oyster ash: 1 part by mass

[0040] 2) Silt: 15 parts by mass

[0041] 3) Water: 7.04 parts by mass

[0042] The fluidity of the slurry obtained through the above ratio is 220mm. The above-mentioned oyster ash is roasted at 1000°C for 2 hours, then deliquified and finely ground into ash by dry method. Its hydraulic component β-type calcium silicate β- The CS content is 6.2%, the air-hardening component calcium oxide CaO content is 92.8% (mass percentage), the other content is 1.0%, and the particle diameter is 180-200 mesh;

[0043] The particle size of the above-mentioned silt is 80 mesh to 100 mesh, and the total soluble salt content is ≤0.5%;

[0044] Control group 1

[0045] A kind of oyster ash silt slurry for repairing hollow drums, cracks and anchoring of murals, the ratio of ra...

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Abstract

The invention belongs to the field of cultural relic protection, and particularly relates to oyster ash silt slurry for repairing hollow drums and cracks and anchoring of murals and a preparation method thereof. The invention aims to solve the problem of how to prepare reinforcing slurry more suitable for repairing hollow drums and cracks and anchoring of murals in the prior art. The preparation method is provided and comprises the following steps: roasting oyster shells at 900-1100 DEG C for 2-3 hours, deliquescing, and finely grinding to obtain oyster ash; mixing the oyster ash and silt according to the mass ratio of 1: 3-1: 15, adding water, and stirring until slurry with the fluidity of 200-240 mm is obtained. The slurry disclosed by the invention is wide in raw material source and simple in formula, has relatively large porosity, relatively small contractibility and relatively good anti-aging performance after being solidified, completely meets the reinforcing requirements of hollow drums and cracks and anchoring of murals, and provides a novel material for repairing defective mural cultural relics.

Description

technical field [0001] The invention belongs to the field of cultural relics protection, and in particular relates to an oyster ash silt slurry for mural restoration hollows, cracks and anchoring and a preparation method thereof. Background technique [0002] The hollowing of murals is one of the most serious types of mural diseases. Hollowing refers to the separation between the ground layer and the support (wall, rock mass or others) of the mural due to the loss or weakening of the bonding performance, resulting in the separation of the ground layer and the support. Hollowing often develops between ground warps, ground warps and supports. Hollowing generally causes the surface of the mural to crack and bulge, and in severe cases, the mural will fall off due to the influence of the mural's own gravity. In the past 20 years, grouting technology has been widely used in the field of international cultural relics protection, and has become an important means to control the dis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/10C04B111/72
CPCC04B28/10C04B2111/00956C04B2111/72C04B2201/20C04B2201/50C04B14/10C04B22/08
Inventor 李黎邵明申刘建辉陈卫昌李志鹏
Owner 中国文化遗产研究院
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