Pavement Preservation Journal - Spring 2018 - 37

Robust Type 3 micro surfacing mix placed on prepared steel grid deck

and then surface, stripe, and open it in the
course of a work night," he says.
"Bergkamp equipment always is dependable," Messina added. "Despite their
dependability, breakdowns occur. The
key to APS' success is our relationship
with Bergkamp. Their customer service is
unparalleled, as reps are available 24/7,
365 days a year. This is vital to our business, as the northeast has a relatively short
paving season, and liquidated damages
are always looming. One day of downtime
can be a disaster on many of our projects."
The truck-mounted M210 can carry
10.5 yd3 (8.0 m3) of aggregate in a level
struck load, 600 gal (2,271 liters) of asphalt
emulsion, and 600 gal (2,271 liters) of water.
It features a 65-gal (246-liter) stainless
steel additive tank. The unit is powered by
an onboard 99-hp Cummins diesel engine
located at the front of the unit in an enclosed
engine compartment that reduces noise for
the driver and crew. It provides flexibility
to better manage legal load weight restrictions by allowing up to three tag axles,
including one behind-the-drive axle. This
feature increases the wheelbase and helps
the M210 meet the federal bridge law.
Aggregate is delivered to the pugmill by a
belt-over-chain conveyor, which eliminates
slippage. Steep hopper walls minimize
bridging, while the hopper's polyethylene
lining reduces friction. This eliminates the
need for a vibrator, which decreases problems with loose bolts and damage to welds
and components.
Asphalt emulsion is delivered to the
pugmill by a positive-displacement
heat-jacketed gear pump. The pump is
powered by a jackshaft that is common

to the aggregate conveyor to provide a
consistent asphalt emulsion-to-aggregate
ratio. The variable-speed, dual-shaft,
multi-paddle pugmill has a dual hydraulic
drive, which provides even mixture and
coating of the aggregate.
"With the M210, we got good mix action
out of the pugmill, and we had really good
coating on our aggregate, combined with
a good mix design and a good emulsion. It
was a great product at the end of the day.
And the M210 keeps up very well with the
speed of the pugmill. It put down a 28-lb.
application in one lift, which is really heavy
for a micro, especially when it comes to a
Type 3," Messina says.
VALUE-ADDED EMULSION
For this project, the emulsifier used was
ArrTekk 1295, which incorporates a
micro surfacing emulsifier technology that
lengthens micro surfacing life cycle by up to
30 percent, allows for better workmanship
and aesthetics, and enables quicker traffic
return for faster paving and increased production rates, the manufacturer says. This
emulsifier chemistry was used to formulate
the emulsion and complete the micro surfacing mix design.
Road Science's plant and field support
personnel traveled to the emulsion plant
and to the Brooklyn Bridge to ensure emulsion production and the micro surfacing
application proceeded smoothly.
The value-added emulsifier chemistry was vital to the success of this project because it resulted in, according to
Road Science:
* A quicker set time of less than
seven minutes
Spring 2018 | PAVEMENT PRESERVATION JOURNAL

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Table of Contents for the Digital Edition of Pavement Preservation Journal - Spring 2018

President’s Message
New NCHRP Guidance Targets Pavement Preservation Performance
Florida Tackles Premature Failures of High Friction Surface Treatments
Oklahoma: High-Friction Surface Treatments Perform on Interstates
NCAT Track Conference Will Provide Look at Pavement Preservation Sections
FP2@TRB 2018
Bi-Partisan ‘problem Solvers Caucus’ Works to Move Infrastructure Reform
Research: Longitudinally Textured PCC Pavement Most Energy-Efficient Surface
Not Just Pavements: Micro Surfacing Right for New York’s Brooklyn Bridge
Profiles in Preservation: Crack Sealants
Index of Advertisers
Pavement Preservation Journal - Spring 2018 - Intro
Pavement Preservation Journal - Spring 2018 - cover1
Pavement Preservation Journal - Spring 2018 - cover2
Pavement Preservation Journal - Spring 2018 - 3
Pavement Preservation Journal - Spring 2018 - 4
Pavement Preservation Journal - Spring 2018 - 5
Pavement Preservation Journal - Spring 2018 - 6
Pavement Preservation Journal - Spring 2018 - 7
Pavement Preservation Journal - Spring 2018 - 8
Pavement Preservation Journal - Spring 2018 - President’s Message
Pavement Preservation Journal - Spring 2018 - 10
Pavement Preservation Journal - Spring 2018 - New NCHRP Guidance Targets Pavement Preservation Performance
Pavement Preservation Journal - Spring 2018 - 12
Pavement Preservation Journal - Spring 2018 - 13
Pavement Preservation Journal - Spring 2018 - 14
Pavement Preservation Journal - Spring 2018 - Florida Tackles Premature Failures of High Friction Surface Treatments
Pavement Preservation Journal - Spring 2018 - 16
Pavement Preservation Journal - Spring 2018 - 17
Pavement Preservation Journal - Spring 2018 - 18
Pavement Preservation Journal - Spring 2018 - 19
Pavement Preservation Journal - Spring 2018 - 20
Pavement Preservation Journal - Spring 2018 - Oklahoma: High-Friction Surface Treatments Perform on Interstates
Pavement Preservation Journal - Spring 2018 - 22
Pavement Preservation Journal - Spring 2018 - 23
Pavement Preservation Journal - Spring 2018 - 24
Pavement Preservation Journal - Spring 2018 - NCAT Track Conference Will Provide Look at Pavement Preservation Sections
Pavement Preservation Journal - Spring 2018 - FP2@TRB 2018
Pavement Preservation Journal - Spring 2018 - 27
Pavement Preservation Journal - Spring 2018 - 28
Pavement Preservation Journal - Spring 2018 - Bi-Partisan ‘problem Solvers Caucus’ Works to Move Infrastructure Reform
Pavement Preservation Journal - Spring 2018 - 30
Pavement Preservation Journal - Spring 2018 - Research: Longitudinally Textured PCC Pavement Most Energy-Efficient Surface
Pavement Preservation Journal - Spring 2018 - 32
Pavement Preservation Journal - Spring 2018 - 33
Pavement Preservation Journal - Spring 2018 - 34
Pavement Preservation Journal - Spring 2018 - 35
Pavement Preservation Journal - Spring 2018 - Not Just Pavements: Micro Surfacing Right for New York’s Brooklyn Bridge
Pavement Preservation Journal - Spring 2018 - 37
Pavement Preservation Journal - Spring 2018 - 38
Pavement Preservation Journal - Spring 2018 - Profiles in Preservation: Crack Sealants
Pavement Preservation Journal - Spring 2018 - 40
Pavement Preservation Journal - Spring 2018 - Index of Advertisers
Pavement Preservation Journal - Spring 2018 - 42
Pavement Preservation Journal - Spring 2018 - cover3
Pavement Preservation Journal - Spring 2018 - cover4
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