Durability of BFRP mesh-reinforced sea sand mortar thin plate

摘要

The resource utilization and direct application of sea sand in construction engineering is a hot topic of interest. In order to avoid the problem of steel corrosion in the sea sand concrete, basalt fiber reinforced plastic (BFRP) mesh instead of steel mesh to reinforce sea sand mortar thin plate was considered. This novel thin plate resulted in a structural performance clearly superior to that of a steel mesh thin plate. In this paper, the durability performance was investigated for both natural indoor environments and wet-dry environments. The experimental results showed that the tensile strength of the BFRP mesh thin plate varied slightly, the bending strength decreased significantly, and the ductility improved after 1 year indoor environmental exposure, which is marginally better than that of the steel mesh thin plate. Subjected to wet-dry environments in a salt solution for 1 year, however, the tensile strength, flexural strength and ductility of the BFRP mesh thin plate were all significantly decreased. The performance of the steel mesh thin plate in this condition was clearly better.