Properties of multi-scale fiber reinforced restoration materials for Leshan Giant Buddha

doi:10.11835/j.issn.1000.582X.2024.10.002

Home > Archive>Volume 47, Issue 10, 2024 >25-36. DOI:10.11835/j.issn.1000.582X.2024.10.002

Properties of multi-scale fiber reinforced restoration materials for Leshan Giant Buddha
DOI:
                        10.11835/j.issn.1000.582X.2024.10.002
                    
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                        WANG Yi1WANG Yi
1aa. Department of Cultural Relics and Museology, Fudan University, Shanghai, 200433, P. R. China
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ZHANG Hongbin2ZHANG Hongbin
1bChinese Academy of Ancient Books Protection and Research, Fudan University, Shanghai, 200433, P. R. China
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YANG Tianyu3YANG Tianyu
Leshan Giant Buddha Scenic Area Grottoes Research Institute, Leshan, Sichuan614099, P. R. China
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WANG Jinhua1WANG Jinhua
1aa. Department of Cultural Relics and Museology, Fudan University, Shanghai, 200433, P. R. China
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Affiliation:1.1aa. Department of Cultural Relics and Museology, Fudan University, Shanghai, 200433, P. R. China;2.1bChinese Academy of Ancient Books Protection and Research, Fudan University, Shanghai, 200433, P. R. China;3. Leshan Giant Buddha Scenic Area Grottoes Research Institute, Leshan, Sichuan614099, P. R. China
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Fund Project:Supported by the National Key R&D Program of China (2021YFC1523400) and the Special Key Project for Technological Innovation and Application Development in Chongqing(CSTB2022TIAD-KPX0095).

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Abstract:

Mixed hammered ash, with both hydraulic and air hardening properties, was used in restoring Leshan Giant Buddha. To solve the problems of cracking and peeling in the Buddha’s head and face caused by environmental factors, hemp fiber (HF) and calcium carbonate whisker fiber (CWF) were added to enhance the material. Results show that HF outperforms CWF in improving flexural strength, while adding CWF effectively enhances toughness and tensile strength. The combination of the two achieves a comprehensive strengthening effect. After 28 days of curing, composite specimens show a 35.73% increase in flexural strength and 20.88% in tensile strength, outperforming single-doped groups and showing better water and acid resistance. This multi-scale fiber composite method achieves a comprehensive improvement in material strength and weather resistance.

Key words:repair materials;multiscale fibers;cultural relics protection;calcium carbonate whisker

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王奕,张宏斌,杨天宇,王金华.多尺度纤维增强乐山大佛修复材料的性能研究[J].重庆大学学报,2024,47(10):25~36

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Received:December 29,2023
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Online: November 14,2024
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