WeatherMix
All-Weather Concrete
Applications
WeatherMix™ is specially designed to tolerate colder
conditions than normal concrete. It also accelerates setting
time, which provides early protection against freezing at subfreezing temperatures.
Advantages
Permits placement of superior quality performance
concrete in temperatures as low as -7.2oC.
WeatherMix™ is ideal for residential, commercial, industrial
design professionals, owners and contractors by providing
versatile concrete products for cold weather climates.
Characteristics
Extends construction season further into the winter
months.
WeatherMix™ does not contain calcium chloride or any other
intentionally added chloride-containing ingredients. This makes
it an excellent choice for any concrete that comes in contact
with steel surfaces.
Accelerated setting time leading to earlier finishing
of slabs and lower labour costs for contractors.
WeatherMix™ will not initiate or promote corrosion of
reinforcing steel embedded in concrete, galvanized steel floor
and roof systems.
Superior workability with reduced segregation and
bleeding.
Well above industry standards for durability due to freezing and
thawing (freeze-thaw resistance).
Superior finishing characteristics for flatwork and
cast surfaces.
Superior for workability, pumpability, and placement.
Accelerates concrete setting times.
Improved concrete durability, cohesiveness and plasticity.
High-early and ultimate strengths available.
Placement
Meets the performance requirements of CSA and
ACI specifications.
WeatherMix™ can be placed with truck chute, basket, pump or
conveyor.
Average temperatures of the Southern Ontario Region for the
past 3 winters (2002-2005).
20
The placement of WeatherMix™ should follow the regulations
of CSA's Concrete materials and methods of concrete
construction (CAN/CSA-A23.1-04), in particular section 7,
"Placing, finishing, and curing concrete".
16
Temp (oC)
* For proper curing of
conventional concrete, the
concrete environment should
maintain an ambient temperature
of a minimum 10oC for 3 days or
for a time necessary to attain
40% of the specified strength
(CAN/CSA.A23.1-04 Table 20).
Limits of Conventional
Concrete *
12
WeatherMix
10 to 8oC
WeatherMix
o
7 to 5 C
WeatherMix
o
4 to 2 C
WeatherMix
o
1 to -1 C
WeatherMix
o
-2 to -4 C
WeatherMix
1
2
3
4
5
6
-5 to -7 C
8
4
0
-4
o
-8
-12
-16
-20
Oct
LAFARGE
WeatherMix™ is a registered trademark of Lafarge Canada Inc.
Nov
Dec
Jan
Feb
Mar
Apr
May
Limits of Conventional
Concrete *
Average Daily High
Temperatures (oC)
Average Daily
Temperatures (oC)
Average Daily Low
Temperatures (oC)
WeatherMix™
Reduced or eliminated heating and protection time
in cold weather.
WeatherMix
All-Weather Concrete
WeatherMix
LAFARGE
NORTH AMERICA
o
C
50
WeatherMix™
40
Average temperatures of the Southern Ontario Region for the
past 3 winters (2002-2005).
20
16
Limits of Conventional
Concrete *
Temp (oC)
12
WeatherMix
10 to 8oC
WeatherMix
o
7 to 5 C
WeatherMix
4 to 2oC
WeatherMix
1 to -1oC
WeatherMix
o
-2 to -4 C
WeatherMix
1
2
3
4
5
6
-5 to -7 C
8
4
0
-4
o
C
50
40
30
WeatherMix
20
WeatherMix
o
10 to 8oC 1
2
7 to 5 C
10
WeatherMix
0
WeatherMix
-10
WeatherMix
-20
WeatherMix
3
4 to 2oC
1 to -1oC 4
-2 to -4oC5
6
-5 to -7oC
-30
30
-40
40
-50
50
o
-8
-12
-16
-20
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Limits of Conventional
Concrete *
Average Daily High
Temperatures (oC)
Average Daily
Temperatures (oC)
Average Daily Low
Temperatures (oC)
* For proper curing of conventional concrete, the concrete environment
should maintain an ambient temperature of a minimum 10oC for 3 days
or for a time necessary to attain 40% of the specified strength
(CAN/CSA.A23.1-04 Table 20).
LAFARGE
WeatherMix is a registered trademark with Lafarge North America Inc.
Extend Your Concrete Season