Research on concrete durability in the environment with salt solution

By use of common Portland cement and Portland cement,the test specimens,whose water cement ratio is in the range 0.45 to 0.60,were made. After having been corroded by seawater in accelerated corrosion experiment,based on the rule and cause of changes of strength and weight loss rate,experimental data has been provided for quantitative analysis of broken state.The result shows that under the same condition,durability of slag Portland cement is better than that of Portland cement;and when the corrosive coefficient of concrete member is equal to 0.8,it is in conformity with limit value of 25 percent strength loss in American ASTM standard.