Effect of alkalinity on the shear performance degradation of basalt fiber-reinforced polymer bars in simulated seawater sea sand concrete environment

The durability of the basalt fiber-reinforced polymer (BFRP) bar in an alkaline environment is a major problem that prohibits its use as reinforcement in a marine concrete structure. One potential remedy is to reduce the alkalinity of the concrete. For evaluating the feasibility of this technique, the mechanical durability of BFRP bars was investigated in a simulated seawater sea sand concrete environment using accelerated degradation tests. The...