Title:
High-Performance Concrete for McDonald's
Author(s):
Michel Lessard, Eric Dallaire, Denis Blouin, and Pierre-Claude Aitcin
Publication:
Concrete International
Volume:
16
Issue:
9
Appears on pages(s):
47-50
Keywords:
air entrainment; concretes; finishes; high-performance concrete; scaling; Materials Research
DOI:
Date:
9/1/1994
Abstract:
HPC, generally used on major projects, also has a place in day-to-day life. For example, the reconstruction of a concrete sidewalk at the entrance to a business place in a city constitutes a problematic situation for the owner, as normal strength concrete does not harden fast enough to avoid interference with the access. A recent field experiment realized at a McDonald's restaurant in Sherbrooke, Canada, has shown that the use of a high-performance concrete having a w/c of 0.30 can reduce to 24 hr the closure of the traffic at a cost of less than CAN $160 per entrance. One of the entrances was cast using a nonair-entrained HPC, while in the other an air-entrained HPC was used. The air-entrained HPC was found to have a much better finishability and scaling resistance than the nonair-entrained one.