Title:
Chemical versus Physical Acceleration of Cement Hydration
Author(s):
Dale P. Bentz, Franco Zunino, and Didier Lootens
Publication:
Concrete International
Volume:
38
Issue:
11
Appears on pages(s):
37-44
Keywords:
mixture, temperature, setting, strength
DOI:
Date:
11/1/2016
Abstract:
Cold weather concreting often requires the use of chemical accelerators to speed up the cement hydration, setting, and early-age strength development. While calcium chloride is the most commonly used chemical accelerator, recent research using fine limestone powders has indicated their high proficiency for physically accelerating early-age hydration and reducing setting times. This article presents a comparative study of the efficiency of these two approaches.