Comparative Study on Reinforcement Materials for Earthen Sites in Semi-arid Areas — as Exemplified by a Large-scale Earth Site in Lintong Area of Shaanxi
DU Zhilin1, ZHU Jianfeng1,*, MA Tao1, ZHAO Xichen2, LUO Hongjie1,3, LIU Senbiao1
1 School of Materials Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China 2 Shaanxi Academy of Archaeology, Xi'an 710054, China 3 Institute for the Conservation of Cultural Heritage, Shanghai University, Shanghai 200444, China
Abstract: Effective protection of large-scale earthen sites has always been a major challenge for the industry, especially those located in semi-arid regions, which are affected by multiple factors such as wind, rain, freezing and thawing, and at the same time face protection challenges common to both dry and wet environments. In order to find suitable reinforcement and protection materials, thiswork selected four materials currently in common use for comparison, namely inorganic material high modulus potassium silicate (PS), organic material modified polyvinyl alcohol (SH), nanocellulose material modified sodium carboxymethylcellulose (M-CMC), and cellulose nanowhisker (CNC), and conducted in-depth research on their effects on surface hardness, compressive strength, freeze-thaw resistance, frost resistance and thawing resistance of a large-scale burial earthen site in Lintong area of Shaanxi, compressive strength, freeze-thaw resistance, salt resistance, water resistance, chromaticity and permeability. The results show that in the simulation of semi-arid soil with 12% water content, the overall mechanical properties of the samples reinforced with M-CMC materials are good, and the durability of the soil reinforced with SH materials is significantly improved. These two materials are suitable for the application of soil site reinforcement in semi-arid areas and meet the compatibility requirements such as color difference and air permeability for soil site protection.
杜之琳, 朱建锋, 马涛, 赵西晨, 罗宏杰, 刘森彪. 半干旱地区土遗址加固材料的对比研究——以陕西临潼地区某大型土遗址为例[J]. 材料导报, 2025, 39(8): 24030010-9.
DU Zhilin, ZHU Jianfeng, MA Tao, ZHAO Xichen, LUO Hongjie, LIU Senbiao. Comparative Study on Reinforcement Materials for Earthen Sites in Semi-arid Areas — as Exemplified by a Large-scale Earth Site in Lintong Area of Shaanxi. Materials Reports, 2025, 39(8): 24030010-9.
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