Presentation on Hydrodemolition of
Concrete and Bridge Structures
2014 Virginia Concrete Conference
Richmond Virginia
March 6 2014
Outline for Today
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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
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
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Water Source
Power unit
Computerized robot
Carriage and protection shroud
Cutting nozzle and lance
Vacume Truck
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.
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
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Ed Liberati, PE
(502)693-3253
eliberati@hughesgrp.com
www.hydro-technologies.com
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AL Kenz
724-334-7877
modconal@yahoo.com
www.modifiedconcrete.com