Antique wood preparation by inorganic salts treatment and its performance


  • Ming Sun
  • Chencheng Zhao
  • Courage Alorbu
  • Youming Yu
  • Lili Cai



Ancient wood, fungal resistance, historic timber structures, inorganic salt, mechanical properties


onservation of historic timber structures is of great importance for cultural inheritance and community identity promotion. However, most of the current methods available for ancient architecture protection significantly affect their original appearance and aesthetic value and finding wood elements that are similar to the ones in existing historic timber structures is not easy. Here we report a simple and effective method to archaize wood, Castanopsis sclerophylla, by ferric chloride (FeCl3) treatment without significantly affecting its mechanical properties and durability. The lightness and the color indexes of treated wood are similar to the ancient wood sample. The mechanical properties of FeCl3 treated wood are not statistically different from the control. Our durability testing results indicated that FeCl3 treated wood has good decay resistance against Irpex lacteus and Trametes versicolor with a mass loss of less than 10 %. This study provides a convenient method for the restoration and protection of ancient buildings.


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American Wood Protection Association. 2016a. Standard Method for Accelerated Evaluation of Preservative Leaching. AWPA E11-16. USA.

American Wood Protection Association. 2016b. Laboratory method for evaluating the decay resistance of wood-based materials against pure basidiomycete cultures: soil/block test. AWPA E10-16. USA.

Cao, J.; Wang, J.L.; Li, Y.H.; Wang, S.; Du, D.S.; Dong, M. 2015. In-situ consolidation and restoration of wooden components in historic buildings. J Northwest Univ 30(4): 257-262. (In Chinese).

Chun, Q.; Yu, M.Z.; Pan, J.W. 2013. Research on damage characteristic and structural performance of the main hall of Baoguo temple in Ningbo. Sci Conserv Archaeol 25(2): 45-51. (In Chinese).

Chen, Y.S.; Liu, X.Y.; Li, H.; Huang, R.F. 2005. Issues concerning the preserving ancient timber structures. Palace Mus J (5): 332-343+376. (In Chinese).

Du, J.K.; Feng, X.Z.; Wang, Z.L.; Huang, Y.S.; Ramadan, E. 2002. The methods of extracting water information from spot image. Chin Geogr Sci 12(1): 68-72.

Dong, Z.Q. 2016. Study on the mechanism of inorganic salt accelerated aging wood. M.S. Thesis, Zhejiang A&F university, Hangzhou, China. (In Chinese).

Ding, Y.; Wan, J.; Liu, C.; Shi, X.; Xia, X.; Prakash, S.; Zhang, X. 2020. Retrogradation properties and in vitro digestibility of wild starch from Castanopsis sclerophylla. Food Hydrocoll 103: 105693.

Ishikura, Y.; Abe, K.; Yano, H. 2010. Bending properties and cell wall structure of alkali-treated wood. Cellulose 17(1): 47-55.

Janin, G. 1994. Colorimétrie: principe de la mesure de la couleur. Application au bois. Le bois: matériau d'ingénierie. ARBOLOR, Association pour la Recherche sur le Bois en Lorraine 10: 379-399. (In French).

Li, J.; Zhang, F. 2007. The characteristic research of the Hunan temple construction. Chin Overseas Archaeol 4: 71-73. (In Chinese).

Li, Y.J.; Lian, M.C. 2021. Analysis on the layout of traditional residential courtyards and building structures in Guanzhong area, Shaanxi-Taking Xiaojiapo village in Lantian county as an example. In IOP Conf Ser: Earth Environ Sci 768(1): 012141.

Littell, R.C.; Henry, P.R.; Ammerman, C.B. 1998. Statistical analysis of repeated measures data using SAS procedures. J Anim Sci 76(4): 1216-1231.

Marzi, T. 2015. Nanostructured materials for protection and reinforcement of timber structures: A review and future challenges. Constr Build Mater 97: 119-130.

Que, Z.; Li, Z.; Zhang, X.; Yuan, Z.; Pan, B. 2017. Traditional wooden buildings in China. Chapter 10. In Wood in Civil Engineering. Concu, G. (Ed.). 250 p. IntechOpen Limited, London, UK.

Sun, Y. 2010. Intercommunity of architectural design concepts of Chinese ancient palaces from the perspective of the Imperial Palace. Shanxi Archi 36(29): 18-19. (In Chinese).

Shi, H.; Yong, Z.H. 2014. Study on ancient architecture reparation technology. J Suzhou Univ Sci Technol (Eng Technol) 27(4): 68-72. (In Chinese).

Standardization Administration of the People’s Republic of China. 2009a. Method of testing in bending strength of wood. GB/T 1936.1-2009. Research Institute of Wood Industry, Chinese Academy of Forestry. China. (In Chinese).

Standardization Administration of the People’s Republic of China. 2009b. Method for determination of the modulus of elasticity in static bending of wood. GB/T 1936.2-2009. Research Institute of Wood Industry, Chinese Academy of Forestry. China. (In Chinese).

Standardization Administration of the People’s Republic of China. 2009c. Method of testing in compressive strength parallel to grain of wood. GB/T 1935-2009. Research Institute of Wood Industry, Chinese Academy of Forestry. China. (In Chinese).

Schilling, J.S. 2010. Effects of calcium-based materials and iron impurities on wood degradation by the brown rot fungus Serpula lacrymans. Holzforschung 64(1): 93-99.

Triantafillou, T.C.; Deskovic, N. 1992. Prestressed FRP sheets as external reinforcement of wood members. J Struct Eng 118(5): 1270-1284.

Wang, C. 2017. Study on the mechanism of multi-inorganic salt accelerated aging wood. M.S. Thesis, Zhejiang A&F university, Hangzhou, China. (In Chinese).

Xu, E.; Wang, D.; Lin, L. 2020. Chemical structure and mechanical properties of wood cell walls treated with acid and alkali solution. Forests 11(1): 87.

Yin, Y.R. 2019. The integration mechanism of ancient architecture protection and modern construction. E3S Web Conf 136: 04036.

Yang, R.Y.; Sun, Y.F.; Zhang, X.F. 2020. Application and progress of reinforcement technology for Chinese ancient buildings with wood structure. Geotech Geol Eng 38: 5695–5701.

Yan, W.M.; Zhou, Q.; Zhang, B.; Li, Z.B. 2012. Aseismic behavior of chinese ancient wooden structure strengthened by iron-hook. J Beijing Univ Technol 38(4): 502-508. (In Chinese).

Yang, J. 2019. From materials: enlightenment of wood selection and application in ancient Chinese timber buildings. Res Archit Hist Theory 4: 101-106. (In Chinese).

Zhang, H.M.; Yang, S.G.; Zhang, Y.J.; Lu, X.; Li, Y.F.; Tao, B. 2013. Characteristics of ancient building lightning disasters. Meteorol Sci Technol 41(4): 758-763. (In Chinese).

Zhao, X.B.; Zhang, F.L.; Xue, J.Y.; Ma, L.L. 2019. Shaking table tests on seismic behavior of ancient timber structure reinforced with CFRP sheet. Eng Struct 197: 109405.

Zhou, K.; Li, A.; Xie, L.L.; Wang, C.C.; Wang, P.; Wang, X.F. 2020. Mechanism and effect of alkoxysilanes on the restoration of decayed wood used in historic buildings. J Cult Herit 43: 64-72.

Zhang, T.; Yang, P.; Chen, M.Z.; Yang, K.; Cao, Y.Z.; Li, X.H.; Tang, M.; Chen, W.M.; Zhou, X.Y. 2019. Constructing a novel electroluminescent device with high-temperature and high-humidity resistance based on a flexible transparent wood film. ACS Appl Mater Interfaces 11(39): 36010-36019.




How to Cite

Sun, M. ., Zhao, C. ., Alorbu, C. ., Yu, Y. ., & Cai, L. . (2023). Antique wood preparation by inorganic salts treatment and its performance. Maderas. Ciencia Y Tecnología, 25, 1–10.




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