February 2015 | EquipmentWorld.com
50
highway contractor
|
continued
guidelines for pavement quality as-
surance testing and inspection.
NCAT's partner in road research,
Minnesota Department of Transporta-
tion's Minnesota Road Research Facil-
ity (MnROAD), is also testing some
of the same pavement preservation
treatments on high volume roadways
in Minnesota's cold-weather climate.
"Our goal is to execute a single
experiment with nationwide impact
through the MnROAD partnership,"
says Buzz Powell, NCAT assistant
director and test track manager.
"This involves experiment design,
construction planning, installation,
performance testing, dissemination
of fi ndings, and (most importantly)
implementation. It would be ideal
for guidelines/specifi cations to be
universal; however, best practices
could vary as a function of climate,
materials, etc."
Municipal experience
The Charleston County (South Caro-
lina) Transportation Development
department has been a model ex-
ample of a municipality continually
improving and expanding a preser-
vation program. In honor of those
The microsurfacing pavement preservation technique
uses a slurry composed of fi ne aggregate, cement,
polymer-modifi ed emulsion and water.
Microsurfacing in process on a Charleston County road.
Photo:
Richard
Turner,
Charleston
Country
Transportation
Development
Photo:
Richard
Turner,
Charleston
Country
Transportation
Development
