In order to improve the durability of building construction, this study proposes a construction method based on carbon fiber and cement-based composites. Analyze the mechanical properties of carbon fiber cement-based composites, combined with experiments to further analyze its advantages in building construction, to achieve the purpose of building durability construction. The experimental results show that the elastic modulus of CFRC samples with a 0.6% carbon fiber volume percentage is the largest. When the content of carbon fiber increases within a certain range, the elastic modulus of CFRC samples will also increase. Conclusion. The application of carbon fiber cement-based composites in building construction can effectively improve the durability of buildings and further improve the quality of buildings.

The monitoring of stress and strain of bolt fasteners is crucial for stress testing threaded holes and bolt ends. To accomplish this, Three-Dimensional Digital Image Correlation (3D-DIC) technology is employed to capture surface morphological feature images before and after deformation through a digital lens. Using 3D reconstruction and DIC operations, the corresponding coordinates of each pixel of the image are obtained, enabling analysis of the strain and displacement fields. The consistency of the experimental results demonstrates that the DIC method is a suitable approach for monitoring stress on bolt and hole edges.