Concrete Contractors Working in Subzero

Yes... even Vancouver concrete contractors finding themselves
working in subzero temperatures.

Our city is known of the amount of rain and mild temperatures
we're getting in the winter, but occasionally the cold spell
takes over, and it goes below zero.

...so what do you do?

First of all put some dry warm layers on, than...
Bring out the accelerators! Calcium chloride is the main,
most cost efficient and popular accelerator for
unreinforced concrete.Sidewalks, patios, driveways can be
poured without any steel reinforcement on well tampered
base.

For reinforced concrete, contractors use non chloride
accelerators like:
sodium thiocyanates and other thiocyanate salts
triethanolamine and other alkanolamines products based
on sulfates, nitrates and formates.

Concrete accelerators intervene in the setting procedure
of two mainly cement phases:

Tricalcium silicate and Tricalcium aluminate

Accelerated hydration leads to faster heat release,
and to earlier strength development, in other words your
slab will take off in a real hurry, and gotta work your
butt off to keep up with it if you want a nice finish,
and that should keep you warm on a cold Vancouver winter
day.  by John Tar

Call us for an estimate at 604 377 3657


Stamped Concrete