Presentation on Hydrodemolition of Concrete and Bridge
Structures 2014 Virginia Concrete Conference Richmond Virginia
March 6 2014
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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
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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.
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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.
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Hydrodemolition Equipment Water Source Power unit Computerized
robot Carriage and protection shroud Cutting nozzle and lance
Vacume Truck
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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.
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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
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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