Title:
Concrete Q&A: Mitigating Concrete Shrinkage
Author(s):
Publication:
Concrete International
Volume:
45
Issue:
5
Appears on pages(s):
72
Keywords:
admixture, water, drying, cement
DOI:
10.14359/51738803
Date:
5/1/2023
Abstract:
This month’s Q&A discusses concrete shrinkage and ways to mitigate it. It explains drying shrinkage and autogenous shrinkage as well as the influence of water-cement ratio (w/c) on shrinkage and the use of specialized admixtures to overcome drying shrinkage and enhance durability.
Related References:
1. ACI Committee 209, “Report on Factors Affecting Shrinkage and Creep of Hardened Concrete (ACI 209.1R-05),” American Concrete Institute, Farmington Hills, MI, 2005, 12 pp.
2. ACI Committee 212, “Report on Chemical Admixtures for Concrete (ACI 212.3R-16),” American Concrete Institute, Farmington Hills, MI, 2016, 76 pp.
3. Nmai, C.K.; Vojtko, D.; Schaef, S.; Attiogbe, E.K.; and Bury, M.A., “Crack-Reducing Admixture,” Concrete International, V. 36, No. 1, Jan. 2014, pp. 53-57.