SCP Meeting - Tuesday, June 28 in Chicago

Please join us for the Society of Concrete Petrographers meeting on Tuesday at 6:30 in Chicago in conjunction with the ASTM meeting. The meeting will be held in the Los Angeles/Miami Room – 5th Flooor at the Chicago Marriott Downtown.

Following a brief business meeting, we will have a discussion on the effect of deicing salts on freeze/thaw damage in concrete with particular emphasis on the formation of Calcium Oxychloride due to the use of Calcium Chloride and Magnesium Chloride deicing salts. In recent years significant amounts of research has been performed on this topic, however, much of this research is based on laboratory studies. Evidence of distress related to calcium oxychloride can be very difficult to confirm in petrographic work performed on cores removed from the field. ACI 201 is currently working on a TechNote on the topic of joint deterioration due to deicing salts and the formation of calcium oxychloride.

Karl Peterson from the University of Toronto will give a brief presentation on his research on distress related to the formation of calcium oxychloride.