Epoxy Asphalt Concrete Installation on the new, Self-Anchored Suspension Bay Bridge in San Francisco, California. Extremely durable, fatigue resistant flexible pavement especially suitable for long span bridges with steel decks.
2. SFO SAS Bay Bridge Epoxy Asphalt Paving ChemCo Systems
3. Test Pave
SFO SAS Bay Bridge Epoxy Asphalt Paving
A Test Pave was completed to demonstrate the ability to
achieve desired physical properties of epoxy asphalt concrete
to the California Dept. of Transportation before applying the
material on the bridge deck.
ChemCo Systems
4. Paving the Bay Bridge: Epoxy Tack Oil
Bond Coat Machine
SFO SAS Bay Bridge Epoxy Asphalt Paving
Machine meters correct
amount of each component of
the epoxy tack oil and pumps it
to the applicator at a set flow
rate. The machine has enough
storage to tack 1.5 lanes
before re-filling.
ChemCo Systems
5. Paving the Bay Bridge: Epoxy Tack Oil
Bond Coat
SFO SAS Bay Bridge Epoxy Asphalt Paving
ChemCo Systems’ Tack Oil is applied
before each layer of epoxy asphalt
concrete to bond the epoxy AC to the
deck.
ChemCo Systems
6. Paving the Bay Bridge: Production at
the Asphalt Plant
SFO SAS Bay Bridge Epoxy Asphalt Paving
1. Batch is dumped
into front loader
2. Batch Temperature
checked for QC purposes
3. four consecutive 3 ton batches
loaded into a truck and
transported to the bridge deck.
ChemCo Systems
7. Paving the Bay Bridge: Epoxy Asphalt
Concrete
SFO SAS Bay Bridge Epoxy Asphalt Paving
Equipment:
- Paver
- Transport Shuttle
Buggy
- Transport Truck
- Rubber and steel tire
rollers
Note: Transport Shuttle Buggy lifts Epoxy AC from the truck into the paver
in order avoid driving in the fresh Tack Oil.
ChemCo Systems
8. Paving the Bay Bridge: Epoxy Asphalt
Concrete
SFO SAS Bay Bridge Epoxy Asphalt Paving
Finished Lift being
placed down on
the East-Bound
Deck
ChemCo Systems
9. Paving the Bay Bridge: Epoxy Asphalt
Concrete Saw Cut
SFO SAS Bay Bridge Epoxy Asphalt Paving
Each lane of epoxy asphalt concrete is cut at an angle to remove the
edge which may not be thoroughly compacted and to provide a clean
surface for the adjacent lane to bond to.
ChemCo Systems
10. SFO SAS Bay Bridge Epoxy Asphalt Paving
Paving the Bay Bridge: Epoxy Asphalt Concrete
Quality Assurance on the Bridge Deck
Nuclear Gauge Testing was performed to ensure that proper
compaction was achieved on the final driving surface
ChemCo Systems
11. SFO SAS Bay Bridge Epoxy Asphalt Paving
Paving the Bay Bridge: Epoxy Asphalt
Concrete
First Layer of epoxy AC on bridge deck
(left) before the final lift is placed on the deck.
ChemCo Systems
12. Paving the Bay Bridge: Epoxy Asphalt
Concrete Finished Product
SFO SAS Bay Bridge Epoxy Asphalt Paving ChemCo Systems
13. SFO SAS Bay Bridge Epoxy Asphalt Paving ChemCo Systems