The experimental study of air-entrained concrete specimens subjected to different cycles of freeze-thaw was completed.The dynamic modulus of elasticity,weight loss,the cubic compressive strength,compressive strength,tensile strength and cleavage strength of air-entrained concrete were measured after 0,100,200,300,400 cycles of freeze-thaw.The experimental results showed that the dynamic modulus of elasticity and strength decreased as the freeze-thaw was repeated.The inffuences of freeze-thaw cycles on the mechanical properties,the dynamic modulus of elasticity and weight loss were analyzed according to the experimental results.It can serve as a reference for the maintenance,design and the life prediction of dams,hydraulic structures,offshore structures,concrete roads and bridges in northern cold regions.
