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Improved Jacketing Repair System
for Steal H-Beams
3/24/21
What is the problem?
• Estimated cost of repairing
deficient bridges in the US is over
$32billion.
• Missouri Department of
Transportation (MoDOT) is
responsible for maintaining
10,400 bridges.
• Missouri has the 4th highest
number of deficient bridges in
the US with more than 3,222
deficient bridges.
• Many of these bridges
constructed using steel H-piles
which by inspection revealed
different degrees of localized
corrosion.
How does product/service solve problem?
• Efficient and durable to
restore original axial
capacity
• Easy and accelerated
technique
• Methyl methacrylate
polymer concrete
(MMA-PC) for better
weather resistance
What is the market use?
• Repair of steel-H piles used in
infrastructure:
– Bridges
– Docks
– Piers
• “A recent estimate for the nation’s
backlog of bridge repair needs is
$125 billion. We need to increase
spending on bridge rehabilitation
from $14.4 billion annually to
$22.7 billion annually, or by 58%, if
we are to improve the condition.”
– ASCE 2021 Report Card
What competition exists?
• PileMedic® - allows construction of a seamless
cylindrical shell around an existing pile or column.
• PILECAP - 100% structural jacket that provides
alternative to driving new piles; can also be
injected with grout or epoxy to fill voids and
damaged area.
• FX-70® Piling Repair –
Epoxies
Conventional concrete
Fiber wraps
What is the status of the intellectual property?
Provisional application, 63/047,289: Method
and Apparatus for reinforcing Steel H-Piles,
filed July 2020.
What is the stage of development?
• How much testing?
Seven columns under axial
compression
Varied jacket lengths
Adaptable to different
concrete formulations
What is needed for further development?
• Fatigue testing
• Testing under eccentric loads
• Testing under seismic loads

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Improved Jacketing Repair System For Steel H Beams

  • 1. Improved Jacketing Repair System for Steal H-Beams 3/24/21
  • 2. What is the problem? • Estimated cost of repairing deficient bridges in the US is over $32billion. • Missouri Department of Transportation (MoDOT) is responsible for maintaining 10,400 bridges. • Missouri has the 4th highest number of deficient bridges in the US with more than 3,222 deficient bridges. • Many of these bridges constructed using steel H-piles which by inspection revealed different degrees of localized corrosion.
  • 3. How does product/service solve problem? • Efficient and durable to restore original axial capacity • Easy and accelerated technique • Methyl methacrylate polymer concrete (MMA-PC) for better weather resistance
  • 4. What is the market use? • Repair of steel-H piles used in infrastructure: – Bridges – Docks – Piers • “A recent estimate for the nation’s backlog of bridge repair needs is $125 billion. We need to increase spending on bridge rehabilitation from $14.4 billion annually to $22.7 billion annually, or by 58%, if we are to improve the condition.” – ASCE 2021 Report Card
  • 5. What competition exists? • PileMedic® - allows construction of a seamless cylindrical shell around an existing pile or column. • PILECAP - 100% structural jacket that provides alternative to driving new piles; can also be injected with grout or epoxy to fill voids and damaged area. • FX-70® Piling Repair – Epoxies Conventional concrete Fiber wraps
  • 6. What is the status of the intellectual property? Provisional application, 63/047,289: Method and Apparatus for reinforcing Steel H-Piles, filed July 2020.
  • 7. What is the stage of development? • How much testing? Seven columns under axial compression Varied jacket lengths Adaptable to different concrete formulations
  • 8. What is needed for further development? • Fatigue testing • Testing under eccentric loads • Testing under seismic loads