4. An intern performed the resistivity test according to AASHTO T358 on two sets of 4...
4. An intern performed the resistivity test according to AASHTO T358 on two sets of 4 x 8 in. cylinder specimens at 28-day of concrete age. One set of specimens (ASTM) were wet cured through the testing ages. Other set of specimens (Field) were wet cured for seven day following specimen fabrication, then dry cured. The average resistivity results of two sets of specimens are 89.8 and 14.9 k22 - cm. However, the intern forgot to document the curing conditions. What is the result of average resistivity for the ASTM and Field specimens? Justify your answer. What is the likely corrosion rate for both sets of specimens according to the recommendation of CEB-192?