Title:
Cost-Effective SCC for Deep Foundations
Author(s):
Moncef Nehdi, Hassan El-Chabib, and Hesham El Naggar
Publication:
Concrete International
Volume:
25
Issue:
3
Appears on pages(s):
95-103
Keywords:
DOI:
Date:
3/1/2003
Abstract:
Since its inception in the late 1980s, self-consolidating concrete (SCC) has gained increasing recognition in the concrete industry. However, its large-scale implementation has been hindered by issues such as a 30 to 50% higher material cost compared to normal concrete of similar compressive strength, more demanding formwork requirements in certain applications, and often higher shrinkage strains. Currently, because of limited accessibility and visibility, the integrity of the cross section of deep foundations cannot be assured using normal concrete. Because it can flow under its own weight and fill narrow or congested sections and corners of formwork, SCC is ideal for such application. This laboratory investigation attempts to design cost-effective SCC incorporating high-volume replacement of ordinary portland cement by mineral admixtures such as fly ash, ground granulated blast furnace slag, and limestone filler.