Title:
Shrinkage-Compensating Concrete Made With An Expansive Component
Author(s):
Henry Russell, Robert Stadler, and Herbert Gelhardt, III
Publication:
Concrete International
Volume:
24
Issue:
8
Appears on pages(s):
107-111
Keywords:
DOI:
Date:
8/1/2002
Abstract:
Expansive components that can be used to produce shrinkage-compensating concrete became available after ACI 223-98 was published. One of these expansive components is CONEX, which produces expansion by forming calcium hydroxide platelets as calcium oxide transforms into calcium hydroxide during cement hydration. Since this expansion does not result from the formation of ettringite, ACI Committee 223 recommended developing data, similar to that in Fig. 3.2.3 of ACI 223, for use with expansive components. The objective of our test program was to generate information similar to that reported in ACI 223, so we could develop a figure for a shrinkage-compensating concrete produced using ordinary portland cement and an expansive component.