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HOTLINKS to download
PAVE reports, review upcoming NCAT
training courses, query
historical weather data, view
current color radar or preview
local forecast.
8,357,138 ESALs as of 2300 hours on August 9, 2007 (84% of the 10,000,000
ESAL goal !).
RUTTING is
being measured weekly with scanning lasers that are correlated to periodic dipstick
profiles. The average rut depth on 8/11/08
was 5.8 mm.
ROUGHNESS (via inertial profiler) within the middle 150 ft (research) portion
of each section most recently averaged 92 inches per mile.
CONTACT
this project via...
NCAT_Pavement_Test_Track
1600_Lee_Road_151 Opelika,_AL_36804_USA 334.844.6228
GOD BLESS AMERICA !
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 | Performance data for each section will be viewed by positioning your
mouse over the section in question and left-clicking. This page is under
construction, and currently you may only be able to see construction data.
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| Every Monday, trucking is suspended so that vehicle maintenance can be performed and
pavement performance can be quantified. An inertial profiler equipped with a full
lane width dual scanning laser "rutbar" is run weekly around the entire Track in
order to determine individual wheelpath roughness, right wheelpath macrotexture and
individual wheelpath rutting for every experimental section. Additionally, 3 random
locations were selected within each section in a stratified manner to serve as the fixed
test location for nondestructive wheelpath densities. Transverse profiles are
measured along these same locations each week so that rutting may be calculated using a
contact method. Every month, wet ribbed surface friction testing, falling weight
deflectometer testing, and structural high speed response data is collected, along with
videologging to provide a permanent visual record of surface performance. Every
quarter, cores are cut from the wheelpath of every section so that densification of each
layer can be considered. |
| To facilitate lab to field performance correlations, numerous test specimens were
compacted using actual plant run material at the time test sections were constructed.
Additionally, hundreds of pounds of loose mix were sampled and saved during
production of each experimental section to facilitate other research projects that can be
enhanced by being plugged into Track research. |
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