Dust Control
Products
W 1.32 calcium chloride (cacl2)
MG-30 calcium chloride/ magnesium hydroxide
Applications
Calcium chloride is
easily applied
following the
Kortech Calcium Chloride Application Protocol
Benefits
Increases safety through increased visibility on rural
roads.
Dust particles (fines) are not blown into adjacent
homes creating health complications in the human
respiratory system.
Dust particles (fines) are not blown onto adjacent
environmental areas, such as bodies of water.
Calcium chloride has both; an easy application
process and also a low cost, making calcium chloride
the most widely used dust control agent on North
American rural roads.
Calcium chloride has proven to reduce gravel loss by
up to 40%. Reducing re-gravelling costs help reduce
the overall maintenance cost.
Treated road surfaces may be bladed, which will not
result in substantial product loss.
Structural Stability
Calcium chloride provides a hardened road surface
and a stronger base reducing maintenance costs and
road surface problems.
Freeze Thaw Stability
Calcium chloride reduces frost heaving caused by the
freeze thaw cycle. Deep enetration of calcium
chloride can reduce spring and fall maintenance
costs by reducing road surface and base maintenance
work costs.
Environmental
Calcium Chloride is non-toxic and does not require any
placarding during transportation. Tests conducted by the
Department of Highways in Ontario show Calcium Chloride is non-toxic and does not require any
placarding during transportation. Tests conducted by the
Department of Highways in Ontario show Calcium
chloride to be the least aggressive agent among dust
palliatives.
Calcium chloride is not palatable to wildlife, keeping
wildlife away from treated road surfaces.
Cost
The availability of naturally occurring Calcium
Chloride Brines in Alberta has lowered the costs of
calcium chloride brines Western Canada.
Utilization of Calcium Chloride lowers the road
construction costs as the densities are attained more
readily.
Maintenance costs are reduced dramatically on a
season to season basis.
Quantity needed
Q: How much calcium
chloride is needed to treat my roadway for
dust control?
A: For dust control applications we
recommend between 1.5 litres and 2.0 litres per
square meter at a depth of 2 inches.
Step 1: find the surface area of the roadway (length x width)
| Area of Roadway (length x width) |
Width of
Roadway
(meters) |
5m |
7m |
10m |
Length of
Roadway
(meters) |
- |
- |
- |
- |
| 100 m (0.1 km) |
- |
500 m2 |
700 m2 |
1000 m2 |
| 200 m (0.2 km) |
- |
1000 m2 |
1400 m2 |
2000 m2 |
| 500 m (0.5 km) |
- |
2500 m2 |
3500 m2 |
5000 m2 |
| 1000 m (1 km) |
- |
5000 m2 |
7000 m2 |
10 000 m2 |
Step 2: calculate the product needed (area x
application rate)
Product
needed (area x
application
rate) |
Area of
road
surface
(m2) |
500 m2 |
2500 m2 |
10 000 m2 |
Application
rate (litres
per m2) |
- |
- |
- |
- |
| 1.5 litres per
m2 |
- |
750 litres |
3750 Litres |
15 000
Litres |
| 1.7 litres per m2 |
- |
850 Litres |
4250 Litres |
17 000 Litres |
| 1.5 litres per
m2 |
- |
750 litres |
3750 Litres |
15 000
Litres |
| 1.7 litres per
m2 |
- |
850 Litres |
4250 Litres |
17 000
Litres |
| 2.0 litres per
m2 |
- |
1000 Litres |
5000 Litres |
20 000
Litres |
FAQ
Q: Will I need to add additional aggregate to my
roadway surface?
A: Fresh aggregate ensures that the
proper mix of rock, clay and fines are present in
the material mix. Overtime, gravel is separated
though heavy vehicle traffic pounding,
environmental conditions (rain, snow, etc) and
aggregate loss.
Fresh gravel is always valued,
however, new aggregate is not necessary. If
surface material can be bladed to a depth of
1.5– 2.0 inches fresh aggregate is not needed,
but it does ensure the application will last
longer and that the proper mix is established.
Base Stabilization
Products
MG-30 calcium
chloride/
magnesium
hydroxide
Applications
Calcium chloride is
easily applied
following the Kortech
Calcium Chloride
Application Protocol
Benefits
Calcium chloride base
stabilization hardens the
road surface to reduce
rutting from heavy
traffic.
MG-30 binds the particles
in the road surface to create a higher compaction
level versus untreated surfaces.
MG-30 brings a clay component called magnesium
hydroxide that is very effective in silty/sandy
aggregates.
Reduces the need for regular blading.
Reduces potholes, washboard and soft spots in a
road surface.
Does not harm surfacing of asphalt or pavement.
Freeze Thaw Stability:
Calcium chloride reduces frost heaving caused by
the freeze thaw cycle. Deep penetration of
calcium chloride can reduce spring and fall
maintenance costs by reducing road surface and
base maintenance work costs.
A Swedish study has found calcium chloride can
reduce frost lenses, which cause frost heaves, by up to 60%.
FAQ
Q:What other costs are
associated with a
calcium chloride
application?
A: there are
application costs to
consider in addition to the cost of the calcium
chloride. The cost of trucking and application can
be included in the purchase of calcium chloride,
however, additional costs to application include:
water truck costs, grader costs, and in some
cases mixer/reclaimer costs. For the calcium
chloride application it is recommended to have a
water truck pre-wet the aggregate at a rate of
0.7—1.0 litres per meter square before we apply the calcium. Please refer to the recommended
application procedures for full application
instruction.
| Area of Roadway (length x width) |
Width of
Roadway
(meters) |
5m |
7m |
10m |
Length of
Roadway
(meters) |
- |
- |
- |
- |
| 100 m (0.1 km) |
- |
500 m2 |
700 m2 |
1000 m2 |
| 200 m (0.2 km) |
- |
1000 m2 |
1400 m2 |
2000 m2 |
| 500 m (0.5 km) |
- |
2500 m2 |
3500 m2 |
5000 m2 |
| 1000 m (1 km) |
- |
5000 m2 |
7000 m2 |
10 000 m2 |
Product
needed (area x
application
rate) |
Area of
road
surface
(m2) |
500 m2 |
2500 m2 |
10 000 m2 |
Application
rate (litres
per m2) |
Depth of
Treatment |
- |
- |
- |
|
| 3.0 litres per m2 |
3.0 inches
(7 6 cm) |
- |
1500 litres |
7500 litres |
30 000 litres |
| 3.0 litres per m2 |
3.0 inches
(7.6 cm)
deep |
- |
1500 litres |
7500 litres |
30 000 litres |
| 6.0 litres per m2 |
6.0 inches
(15.2 cm)
deep |
- |
3000 litres |
15 000 litres |
60 000 litres |
| 12.0 litres per m2 |
12.0 inches
(30.5 cm)
deep |
- |
6000 litres |
30 000 litres |
120 000 litres |
Q:How long will it take to complete the base
stabilization?
A: Base stabilization applications take
varying amounts of time dependant on several
factors:
Amount of roadway to complete
Application depth (3.0 inches—12.0
inches in depth)
Environmental conditions; especially
extended periods of rain or sunshine.
| |
Research Paper |
| |
Stabilizing unpaved roads with calcium chloride. Monlux, S Transportation Research Record , no. 1819, Volume 2, pp. 52-56. 2003
The U.S. Department of Agriculture Forest Service has stabilized un-paved road surfacing materials with relatively high concentrations of calcium chloride salt. The percentage of calcium chloride is higher than that traditionally used for dust abatement or aggregate base
stabilization.
Up to 2% pure salt by weight of aggregate was mixed into the top 2 in. (50 mm) of both aggregate and native road surfaces. The results were monitored for 2
to 4 years. The stabilized road surfaces resisted raveling and washboarding for several seasons and significantly reduced road blading and aggregate loss.
As a result, calcium chloride stabilization may be a cost-effective treatment for roads with daily traffic volumes less than 200. Other benefits include reduced surface erosion and sedimentation; improved safety from reduced dust, raveling, and washboarding; and less frost penetration.
Encouraged by these results, the Forest Service is conducting additional evaluations to determine the costeffectiveness of surface stabilization with both magnesium
chloride and calcium chloride in different environments and with different aggregate materials. |
Winter Sand/ Ice Control Products
W 1.32 calcium chloride (cacl2)
W 1.32 Inhibited calcium chloride (CaCl2)
Applications Calcium chloride is easily applied following the Kortech Calcium Chloride Application Protocol
Benefits
Calcium chloride reduces frost heaving caused by the freeze thaw cycle. Deep enetration of calcium chloride can reduce spring and fall maintenance costs by reducing road surface and base maintenance work costs.
Quantity needed
Q: How much calcium chloride is needed to treat my roadway for dust control?
A: For dust control applications we recommend between 1.5 litres and 2.0 litres per square meter at a depth of 2 inches.
Step 1: find the surface area of the roadway (length x width)
| Area of Roadway (length x width) |
Width of
Roadway
(meters) |
5m |
7m |
10m |
Length of
Roadway
(meters) |
- |
- |
- |
- |
| 100 m (0.1 km) |
- |
500 m2 |
700 m2 |
1000 m2 |
| 200 m (0.2 km) |
- |
1000 m2 |
1400 m2 |
2000 m2 |
| 500 m (0.5 km) |
- |
2500 m2 |
3500 m2 |
5000 m2 |
| 1000 m (1 km) |
- |
5000 m2 |
7000 m2 |
10 000 m2 |
Step 2: calculate the product needed (area x application rate)
Product
needed (area x
application
rate) |
Area of
road
surface
(m2) |
500 m2 |
2500 m2 |
10 000 m2 |
Application
rate (litres
per m2) |
- |
- |
- |
- |
| 1.5 litres per m2 |
- |
750 litres |
3750 Litres |
15 000 Litres |
| 1.7 litres per m2 |
- |
850 Litres |
4250 Litres |
17 000 Litres |
| 1.5 litres per m2 |
- |
750 litres |
3750 Litres |
15 000 Litres |
| 1.7 litres per m2 |
- |
850 Litres |
4250 Litres |
17 000 Litres |
| 2.0 litres per m2 |
- |
1000 Litres |
5000 Litres |
20 000 Litres |
Cost
The availability of naturally occurring Calcium Chloride Brines in Alberta has lowered the costs of calcium chloride brines Western Canada.
Utilization of Calcium Chloride lowers the road construction costs as the densities are attained more readily.
Maintenance costs are reduced dramatically on a season to season basis.
FAQ
Q: Will I need to add additional aggregate to my roadway surface?
A: Fresh aggregate ensures that the proper mix of rock, clay and fines are present in the material mix. Overtime, gravel is separated though heavy vehicle traffic pounding,
environmental conditions (rain, snow, etc) and aggregate loss.
Fresh gravel is always valued, however, new aggregate is not necessary. If surface material can be bladed to a depth of 1.5– 2.0 inches fresh aggregate is not needed, but it does ensure the application will last longer and that the proper mix is established.
|