Time-To-Corrosion of Reinforcing Steel in Concrete Slabs. Volume 2. Electrical Potential Date.

摘要

The purpose of this investigation is to determine the relative time-to-corrosion of reinforcing steel embedded in concrete slabs,fabricated from various mix designs and construction procedures,when the slabs are subject to periodic wetting with a 3percent NaCl solution. One hundred twenty four, 4ft. by 5ft. by 6-in. reinforced concrete slabs were fabricated,cured,and placed in the outdoor exposure yard on elevated stands. Three evaluation techniques were used to ascertain the performance of each variable: (1) Chloride content at the level of the reinforcing steel, (2) Visual examination of the concrete, (3) Electrical half-cell potential of the reinforcing steel. This volume contains the data obtained using the third evaluation technique. The data are presented in the form of plots of electrical half-cell potential to the copper-copper sulfate electrode versus time (with increased deicer applications) for each of the 124slabs. This volume is the second in a series of two carrying the same first order title. (Modified author abstract)