ABSTRACT
The building stone weathering problem has been an important issue facing the field of ancient building protection, seriously affecting the pressure-bearing, seismic, stability performance of ancient buildings, and their aesthetics. The current application of non-destructive testing (NDT) technology in the restoration and protection of stone elements of ancient buildings is still at a relatively basic stage, and the relevance and efficiency of its application still need to be improved. In this paper, we summarize the cutting-edge work, difficulties, and prospects for the future work of NDT technology in the restoration and protection of stone elements of ancient buildings through literature analysis. It is found that the application of NDT technology in stone ancient buildings is largely influenced by the environment, the volume, and characteristics of ancient buildings, and because of the uniqueness of the buildings, the data obtained after NDT are not controlled by experiments for analysis and comparison. Most of the analysis models are used natural rock analysis model or some expert experience, the analysis results do not reflect the physical and chemical state of ancient buildings well. Finally, some prospective studies on the disease mechanism of stone ancient buildings, the weathering degree of the surface layer, and simulated environmental experiments are conducted.
