The rehabilitation of the WWII era Point Protrero
Wharf in Richmond, California, would be
not only a challenging and labor intensive undertaking
for the contractor and specifying consultant,
but also extremely high-profile. Earlier
in the year, American Honda announced plans
to shift the import of nearly 150,000 vehicles
per year to the Richmond marine terminal.
The specifying consultant, Sugiarto Loni, SE,
with design engineering firm Liftech Consultants,
Inc. required a high-performance solution
to strengthening 96 structurally damaged
concrete piles using a form and pour method.
In addition, the repair mortar needed to offer
large volume placement capabilities and shrinkage
compensating properties while providing
an application range of 1" to 8" in thickness.
Based on the conditions provided by the
specifier, Dayton Superior recommended their Civil/Structural FPX over a non-shrink grout product. The Civil/Structural FPX would
allow for the greatest resistance to spalling
and disintegration, which was critical on this
project. A one-component, polymer modified
cement based-material enhanced with a
corrosion inhibitor and a coarse aggregate,
Civil/Structural FPX can be placed to a depth
of 8" and provide a higher level of repair
while withstanding the extreme conditions
of a wharf environment.
“Because we used the Civil/Structural FPX, a
pre-engineered product, supplied in 48 bulk
bags, our five man crew saved approximately
120 hours of labor which translates into a
savings of $9,000,” said Chris Ellis, PE, project
manager for Vortex.