EXPERT ADVICE
large role in being able to properly compact hot mix asphalt,
which affects its lifespan. Though Anderson doesn’t recom-
mend paving in the winter, he says limitations can be pushed
if necessary. If contractors still want to go ahead with paving
in cold weather, be sure to follow Anderson’s tips below.
Don’t Pave on Frozen Ground
Do not lay down asphalt when the ground is frozen. The as-
phalt will turn into a poor quality mixture that will break
down almost immediately. Even though the asphalt mixture
is kept at high temperatures, it will freeze and stiffen if poured
on cold ground. Asphalt poured on frozen ground will result
in a lot of asphalt potholes and cracks when the snow melts.
While you can’t pave while the ground is frozen, freezing air
temperatures have no effect on the quality of asphalt.
Wait for Dry Weather Conditions
The weather conditions need to be dry when paving asphalt.
This means it can’t be raining or snowing. The ground must
also be completely dry, which rules out pouring asphalt imme-
diately after rain or snowfall. Just like when paving on frozen
ground, the quality of asphalt is compromised when paved
in the rain or snow. This is because temperature affects how
well hot mix asphalt is able to flow so it can be properly com-
pacted. Proper asphalt compaction affects the lifespan of your
newly paved surface.
Work Quickly
Since the weather can change so fast in the winter, it is im-
portant for contractors to work quickly and efficiently. Paving
asphalt in the winter has its own unique challenges that re-
quire contractors who have prior experience with cold weather
paving. Contractors will need to be able to get their crew and
equipment over to the job site as soon as possible before the
weather changes.
While winter paving isn’t recommended, it can still be done
successfully if contractors take heed and follow these tips. Look
for a break in the weather when it’s dry out for a few days and
when the ground isn’t frozen. Prep the crew beforehand so
when they get to the site, everyone can work efficiently to get
in and out before the weather can change and wreak havoc.
Brad Anderson is the owner of B&E Coating Services and Safe Seal of Mich-
igan, and he’d be happy to answer any winter paving questions you may
have. Contact him at [email protected] or visit his website at
www.safesealofmichigan.com.
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January 2019