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 variability.
The bulletin takes a non-technical approach to a complex topic. In addition to explaining the various ways admixtures can improve concrete performance, it introduces the functions and applications of the following admixture types:
- Air entraining
- Water reducing and set controlling
- Corrosion inhibiting
- Shrinkage reducing
- Admixtures for controlling alkalisilica reactivity
- Admixtures for underwater concreting
The publication also provides information about the dispensing systems ready-mix plants use to accurately measure and inject liquid admixtures into concrete mixtures and the recommended injection sequence for the various classes of admixtures. A list of relevant ASTM standards and an admixture glossary are included for quick reference.
The cost of the 12-page bulletin is $14.00 for ACI members (nonmember price is $22.50). For more information or to order, call (248) 848-3800 or visit www.concrete.org.