Author:
Wang Zhi-Liu,Hu Meng-Xin,Wang Yu-Long,Li Xin-Ming,Yin Song
Abstract
AbstractSong Dynasty tilestones are one type of ancient Chinese building materials. Studying their mechanical properties is of great significance for the design and development of restoration materials. It is a challenge to sample and perform traditional tests (ϕ50mm × 100mm) for the tilestone cultural relics. In this work, a combination of nanoindentation techniques and the homogenization calculation method based on the Mori–Tanaka model were used to determine the mechanical parameters of Song Dynasty tilestones. The study process involved several steps: (1) Using X-ray diffraction and scanning electron microscopy to examine the surface morphology and mineral composition of the tilestones. (2) Determining the mechanical parameters (i.e., the elastic modulus, hardness and fracture toughness) through nanoindentation tests. (3) Upgrading mechanical parameters from micro to meso-scale using the Mori–Tanaka model and comparing these with uniaxial compression test results. The result shows that the red tilestones and green tilestone are mainly composed of quartz, feldspar and mica. The average elastic modulus of the red tilestones and the green tilestones are 29.47 GPa and 30.21 GPa, respectively. Compared with the parameter result obtained by upscaling, the deviation rates of the red tilestones and green tilestones are 10.3% and 9.6%, respectively, which proves that the test method is reliable. The nanoindentation test and homogenization approach in this work provide the robust theoretical and practical basis for evaluating the mechanical strength of Song Dynasty tilestones.
Funder
Henan Provincial Science and Technology Research Project
the Strength Improvement Plan of the Advantageous Disciplines of Zhongyuan University of Technology
Funding Program for Young Backbone Teachers in Zhongyuan University of Technology
Postgraduate research innovation project of Zhongyuan University of Technology
Publisher
Springer Science and Business Media LLC
Reference45 articles.
1. Xu JC, Zhang T, Jiang Y, Qiu S, Li PL, Yang DY, Qiu FX. Nano-silica/fluorinated polyacrylate composites as surface protective coatings for simulated stone cultural relic protection. J Appl Polym Sci. 2022;139(40):E52953.
2. Huang JZ, Zheng Y, Li H. Study of internal moisture condensation for the conservation of stone cultural heritage. J Cult Herit. 2022;56:1–9.
3. Chen X, Qi XB, Xu ZY. Determination of weathered degree and mechanical properties of stone relics with ultrasonic CT: a case study of an ancient stone bridge in China. J Cult Herit. 2020;42:131–8.
4. Zhu GW. The local cultural network of the society of water transport: the dragon boat culture and brick and tile industry from the Song dynasty in Shawan Inspection Department, Panyu County of Guangzhou. J Hist Anthropol. 2018;16(2):43–92.
5. Germinario L, Oguchi CT. Underground salt weathering of heritage stone: lithological and environmental constraints on the formation of sulfate efflorescences and crusts. J Cult Herit. 2021;45:85–93.