BW Update Canada Fall-Winter 2010 - Brock White

FEATURED PROJECT
Anthony Henday Drive
Edmonton, AB
PRODUCTS USED:
DOW HI-Load Rigid Insulation
1” HI-60 2” HI-40
GENERAL CONTRACTOR: PCL/KCM, Edmonton
ARCHITECT: CH2M Hill, Edmonton
ENGINEER: AECOM Engineering, Edmonton
SUB/SPECIALTY CONTRACTOR:
Standard General (paving), St. Albert
The project consisted of upgrading and
expanding the existing ring road highway around
Edmonton to a six lane divided freeway with 7
new bridge structures to ease traffic congestion
at peak travel hours and to eliminate the need
for the existing traffic signals.The project’s main
problem has not been material availability or the
lack of trades personnel but rather Mother
Nature.Edmonton has been impacted by a very
wet building season thus far which has created
stress to the construction timeline as well as
adding mounted pressure to the sub-contractors
to have their scope of the project completed.
879 Keewatin St. Winnipeg, MB R2X 2S7
www.BrockWhite.com
The purpose of using Dow
Styrofoam in the project was to
prevent frost penetration and
subsequent ice lensing due to the
sub grade’s extremely deep make
up of wet silty clay. The cost of
using the insulation placed over
the existing sub grade is substantial
but the costs to remove the
entire sub grade over the entire
roadway, truck it away and replace
with aggregate would have been
exponentially higher. The result is
a roadbed that will not freeze nor
experience the subsequent
heaving and deterioration
providing a significant savings to
the government on construction.