Surface crack repair material of stone cultural relics and preparation method thereof

Abstract

The invention belongs to the field of cultural relics protection, and in particular relates to a material for repairing cracks on the surface of stone cultural relics and a preparation method thereof. The invention aims to solve the problem that the restoration materials of stone cultural relics in the prior art cannot satisfy the basic principle of not changing the original state of the cultural relics. The invention provides a material for repairing cracks on the surface of stone cultural relics. The repair material includes aggregate and cement, wherein the aggregate includes the same rock powder as the body of the stone cultural relic to be repaired, and the particle size of the rock powder is 60 ~100 mesh; the cement is a potassium silicate solution with a modulus of 3.8, and its concentration is 18%-24%; the mass ratio of the aggregate to the cement is 1:(0.3-0.6). The restoration material of the present invention not only plays the role of reinforcement, but also changes the cemented state of the surface of the stone cultural relics after deterioration, thereby improving the mechanical strength of the surface of the stone cultural relics, fully satisfying the basic principle of not changing the original state of the cultural relics, and contributing to the restoration of stone relics. Relic Rifts provide a new type of material.

Description

Material for repairing cracks on the surface of stone cultural relics and preparation method thereof technical field The invention belongs to the field of cultural relics protection, be specifically related to a kind of stony cultural relic surface crack repair material and preparation method thereof Law. Background technique Stone cultural relics are an important part of my country's cultural heritage, and play an important role in writing my country's splendid civilization. Colors record the changes of Chinese culture and history. Numerous large stone artifacts exposed in the wild, such as buildings, caves, rocks Due to the weathering of natural factors and the destruction of human factors, the surface of many cultural relics has been damaged. Serious deterioration has occurred. Without effective measures, many precious physical records will cease to exist. Good development performance The stony cultural relics protection functional materials have become one o...

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Problems solved by technology

[0003] At present, it is difficult for the commonly used restoration materials for stone cultural relics to be consistent on the entire surface of the cultural relics after the construction is completed, especially the granular solid sandstone, after weathering, its surface has a certain roughness, which makes it difficult for the existing restoration materials Meet the requirements of "the basic principle of not changing the original state of cultural relics"

The Chinese invention patent with the application number of 94108697.6 discloses a silicate reinforcement material, which uses auxiliary materials such as fly ash, cast stone powder or diatomaceous earth to reinforce the porous and loose sandy conglomerate rock mass cracks in a dry environment, but The implementation effect of the invention patent is difficult to meet the basic principle of not changing the original state of cultural relics

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