Stone cultural relic shallow layer repair material and repair method

Abstract

The invention provides a stone cultural relic shallow layer repair material including an inorganic solution and a low-activity mineral powder; the inorganic solution includes a potassium silicate solution, deionized water, solid potassium hydroxide, potassium fluosilicate, sodium lignosulfonate and borax. The low-activity mineral powder can undergo a reaction with the specific inorganic solution under certain conditions; in a process of slow hardening, a cured material having compact structure and good weatherability and having a microstructure similar to that of rocks and ultimate strength similar to that of shallow layer rock mass is formed, and the cured material can be closely and firmly combined with stone cultural relics and is matched with the appearance of the shallow layer rock mass; therefore, requirements of protection and reinforcement of the cultural relics are met, and the defects that a conventional low-activity mineral slag cannot be used and causes pollution and waste are caused after being discarded are solved.

Description

technical field [0001] The invention relates to a stone cultural relic repair material and a repair method, in particular to a stone cultural relic shallow surface repair material and a repair method. Background technique [0002] As a typical representative of stone cultural relics, cave temples occupy an extremely important position in my country's historical and cultural heritage. They have the characteristics of rich stock, long history, wide distribution and outstanding value. A few days ago, the Silk Road has just successfully applied for World Heritage Sites. Among the 22 sites in China, there are 4 sites including Maijishan Grottoes, Bingling Temple Grottoes, Binxian Dafo Temple Grottoes, and Kizil Grottoes. So far, my country's five major cave temples, including Mogao Grottoes, Longmen Grottoes, Yungang Grottoes, Maijishan Grottoes, and Bingling Temple Grottoes, are all listed on the World Cultural Heritage List. Among the seven batches of national key cultural reli...

AI Technical Summary

Problems solved by technology

[0005] The invention proposes a restoration material and restoration method for the shallow surface of stone cultural relics, which can react with a specific inorganic solution under certain conditions by using low-activity mineral powder, and form a compact structure and good weather resistance in the process of slow hardening The solidified body, whose microstructure is similar to that of rock and whose final strength is similar to that of shallow surface rock mass, can be closely and firmly combined with the body of stone cultural relics, and at the same time match the appearance of shallow surface rock mass, thus meeting the requirements of cultural relics protection and reinforcement, and solving the problem of existing The low-activity slag cannot be used, causing pollution and waste after being discarded

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