PCA News: Report identifies effect of ingredients on air-void stability

Various investigations throughout North America have revealed that unusually severe winters have caused an inordinate number of reported cases of scaling in concrete. A recent report from the Portland Cement Association, Cement- Alkali Level as it Affects Air-Void Stability, Freeze-Thaw Resistance, and Deicer Scaling Resistance of Concrete (RD128), investigates potential […]

ACI News Bulletin explains chemical admixtures

Chemical admixtures can significantly enhance the properties of concrete in both plastic and hardened states. ACI International’s newest educational bulletin, Chemical Admixtures for Concrete (E4-03), provides a comprehensive overview of these admixtures and explains how each type works to modify the chemical and physical properties of concrete and to control […]