Welcome to the Western Stabilization Video Library.
What is Foamed Bitumen?
Foamed bitumen or foamed asphalt,
foam bitumen and expanded asphalt is a mixture of
air, water and bitumen. When injected with a small
quantity of cold water and air, the hot bitumen expands
explosively to about fifteen times its original volume
and forms a fine mist or foam.
This expanded bitumen mist is incorporated into the
mixing drum where the bitumen droplets are
attracted to and coat the finer particles of pavement
material, thus forming a mastic that effectively binds
the mixture together.
Fort Bragg, California -
Foam Asphalt
Western Stabilization foaming asphalt in Fort Bragg. Working with Argonaut Construction, we have reconstructed Franklin Street from Cypress to Oak Street. In a train fashion our Wirtgen 2500 pushed an oil tanker while pulling a water truck to perform the cold-foam injection process. This process produced a high-quality usable base roadway by recycling Fort Bragg's old road! This is great news for California, Foam Asphalt Recycling conserves materials and energy, while cutting down on construction truck traffic. The citizens of Fort Bragg reaped the benefit of the minimized impact to the public by utilizing this recycling process.
Fort Bragg is extremely pleased and have told us that they look forward to many more projects in the future. We are excited about up-coming projects and look forward to more recycling in this city soon.
Job info:
220,000 sq. ft. @ 7 inch depth with 3% oil completed in 4 days (it was planned for 10 days)
What does Foamed Bitumen look like?
This is a bucket of foamed oil.
On 6-15-2010
Western Stabilization gives a chemical soil stabilization presentation about using quicklime, cement, and/or fly-ash for structural sections, along with Caltrans for the San Francisco Geo-Institute (SFGI) at Caltrans Distric 4 Auditorium in Oakland California.
Recycyling - Mixing the recycled road material with
the foam bitumen (asphalt)
The WR2500S used in soil stabilization could have an 8 ft or 10 ft mixing drum.
When combined with a foam asphalt spray bar the Wirtgen WR2500S has the capability of recycling the existing
road material to provide a new and stronger road base.
This video show the mixing processes. The hot bitumen, air
and water will be mixed together at precise amounts to
produce the foamed bitumen or sometime called foamed asphalt.
The resulting foamed bitumen is then introduced into the mixing chamber,
to be mixed with recycled road material.
The video shows the pulverizing of old road base for recycling and the mixing of the foamed asphalt process in one step.
Sometimes it necessary to pre-pulverize and introduce a stabilizing agent before the mixing can be accomplished.
Please see our video “Foaming” for a more complete look at how the foamed asphalt is produced.
Foaming - Foam Bitumen (Asphalt) Process
The Wirtgen WR2500S soil stabilizer is equipped with a microprocessor-controlled foam bitumen spray bar,
which has 16 individual nozzles and expansion chambers insuring the even distribution of foam throughout the process.
This video show the basic operation of the foam spray nozzles and expansion chamber.
The Hot Bitumen entering the nozzles, mixing with the precise amount of water and air to
produce the foamed bitumen.
The Foamed Bitumen is then mixed with recycled road material (and stabilizing agent if needed)
to create a stronger, higher load-carrying base for road reconstruction.
Please see our video “Recycling” for a more complete look at the mixing process.
Winterization/Dry-up
Western Stabilization – Our Winterization/Dry-Up of your site eliminates down-time.
It allows you to go back to work and start construction just one day after the completion
of the soil treatment. The beauty of our Winterization/Dry-Up is that it protects your site
throughout the entire construction project, one treatment is all it takes.
You can even winterize your site well before winter sets in.
This process saves you money in the long run.
You can potentially gain some structural value when you winterize your site.
Western Stabilization's Winterization/Dry-Up process reduces expansion and increases the
strength of the soil, allowing you to decrease the rock and pavement sections.
Winterization/Dry-Up gives your engineers options in designing structural sections that can
save you money.
Back to Work in
1 -3 Days or
1-3 Months?
You decide.
