Title:
Self-Consolidating Concrete Solves Challenging Placement Problems
Author(s):
Michel Lessard, Brian Salazar, and Caroline Talbot
Publication:
Concrete International
Volume:
25
Issue:
12
Appears on pages(s):
80-81
Keywords:
Pumping; segregation; bleeding; reinforcement congestion
DOI:
Date:
12/1/2003
Abstract:
The new terminal at Pearson International Airport in Toronto, ON, incorporated 180 hollow steel composite columns that were 101 ft (31 m) tall. A dog bone plate, coupled with the airport’s restriction of cranes above the upper terminal level, led the concrete team to pumping the concrete from the bottom of the column. Self-consolidating concrete (SCC) appeared to be the best choice for this process; the concrete had to be homogenous and lack bleeding and segregation.