The Effect of Salt in Concrete on Compressive Strength, Water Vapor Transmission, and Corrosion of Reinforcing Steel

摘要

The purpose of the investigation was to determine the effects of sodium chloride and sea-water salts separately in concrete. The investigation covered the effects of salt on the compressive strength and water vapor transmission (WVT) of concrete, as well as the corrosive effects of salt on mild reinforcing steel. Variables included water-cement ratio, salinity of mixing water, and diameter and thickness of the specimens. The test environments included 20, 50, and 75 percent RH at 73.4 F. The data presented herein support the general conclusion stated in a previous report, namely, that at a mixingwater salinity of approximately 25 grams of salt per kilogram of solution, compressive strength is increased, WVT is minimized, and corrosion of mild steel is not significant. (Author)