Presentation on Hydrodemolition of Concrete and Bridge Structures
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Presentation on Hydrodemolition of Concrete and Bridge Structures 2014 Virginia Concrete Conference Richmond Virginia March 6 2014
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Presentation on Hydrodemolition of Concrete and Bridge Structures. 2014 Virginia Concrete Conference Richmond Virginia March 6 2014. Outline for Today. Definition of Hydrodemolition Different types of Hydrodemolition Hydrodemolition Equipment Applications for Hydrodemolition - PowerPoint PPT Presentation
Transcript of Presentation on Hydrodemolition of Concrete and Bridge Structures
Presentation on Hydrodemolition of Concrete and Bridge Structures
2014 Virginia Concrete ConferenceRichmond Virginia
March 6 2014
Outline for Today
• Definition of Hydrodemolition• Different types of Hydrodemolition• Hydrodemolition Equipment• Applications for Hydrodemolition• Where Hydrodemolition is the preferred
method of deteriorated concrete removal.• Issues with Conventional methods• Local Projects and where its used• Fast Track Structure Rehabilitation
Hydrodemolition Definition
Hydro Flow and Pressures
• Basically there are 2 types of Hydrodemolition• High Pressure above 25,000 psi with low water
flow rate of 25 gallons per min and less.• Low pressure approximately 15,000 psi and
high water flow rates of 55 gallons per min.
Hydro means Water
• Hydrodemolition water needs to be Clean and Potable due to the tight tolerances' of the pump units
• Best option is to receive water directly from a fire hydrant
• Trucking water is generally the second option• Filtration units can be used to draw from lakes
and streams.
Hydrodemolition Equipment
• Water Source• Power unit• Computerized robot• Carriage and protection shroud• Cutting nozzle and lance• Vacume Truck
Hydrodemolition Pump Unit
Hydrodemolition Robot
Hydrodemolition Vacall Unit
Hydrodemolition Applications
Preferred Method for Rehabilitation
• Total Surface Hydro to Remove Bad Concrete• Structural Concrete Overlays with Latex
Modified Concrete• Flexibility of products depending on traffic• Largest overlay job in United States bid with
this method.
Jack hammer the method of yesterday
Micro cracks and no bond is shown on a thin section after use of a jackhammer.
Hydrodemolition & LMC Use in the United States
Recent Hydrodemolition/LMC Use in Virginia
Fast Track Hydrodemolition Surface
Fast-Track Bid Items• Scarification of deck Surface- SQ YD.• Total Surface Fast-Track Hydro-demolition to
remove bad concrete- SQ YD• Placement of Latex Concrete Overlay at
consistent Depth – SQ YD• Variable Depth Latex Concrete for quantities
above the consistent depth- CUBIC YARD material cost only
Questions / Contact Info
• Ed Liberati, PE• (502)693-3253• [email protected]• www.hydro-technologies.com
• AL Kenz• 724-334-7877• [email protected]• www.modifiedconcrete.com
