Surface Pavement Solution for Poor Subgrade Conditions TRANSPORTATION

Florida Department of
TRANSPORTATION
Surface Pavement Solution for
Poor Subgrade Conditions
Web Interim Report
County:
Palm Beach
Section/Subsection:
93140-000
FIN:
413804-1-52-01
State Road:
15
Last Updated:
August 2014
Project Description
Palm Beach
County:
Section/Subsection No.
93140
State Road:
15
FIN:
413804-1-52-01
OBJECTIVE:
The objective of this study is to evaluate the relative performance of four different
materials to reinforce pavements built over organic soils and peat. The treatment
materials include Petrogrid, Glasgrid, Pavetrac and Asphalt Rubber Membrane
Interlayer (ARMI).
The study includes two test sites, location 1 and location 2, constructed during
2008 in the Northbound and Southbound traffic lanes on SR 15 in Northwest Palm
Beach County. Location 1 and 2 are separated by less than one mile.
Each test site consists of six test sections, one for each reinforcement material and
control sections, one at the beginning and end of each site.
Performance is evaluated in term of deflection, ride, rutting and cracking.
Note: This performance study is a continuation to a research project conducted by
Florida Atlantic University. A report for this research project can be accessed from the
following weblink:
http://www.dot.state.fl.us/research-center/Completed_Proj/Summary_SMO/FDOT_BD54607_rpt.pdf
1
2
STA 257+00
Control 2B
Control 2B
ARMI
MP 24.446
ARMI
MP 24.541
PaveTrac
PaveTrac
STA 247+00
MP 24.257
GlasGrid
GlasGrid
LOCATION 2
MP 24.352
Control 1B
ARMI
Control 2A
Control 1B
ARMI
MP 23.083
Control 2A
MP 24.067
MP 23.177
MP 22.609
PaveTrac
PaveTrac
Control 1A PetroGrid GlasGrid
MP 22.704
GlasGrid
MP 22.799
STA 237+00
STA 232+00
STA 227+00
STA 185+00
STA 180+00
STA 175+00
Control 1A PetroGrid
LOCATION 1
MP 22.988
MP 22.893
STA 242+00
PetroGrid
PetroGrid
MP 24.162
MP 23.973
STA 252+00
Transition Area
3
STA 170+00
STA 165+00
STA 160+00
STA 155+00
TYPICAL SECTION
CL
12’ LANE
12’ LANE
PAVED
SHLDR
PAVED
SHLDR
4.5” MILLING.
1.0”FC 9.5 & 2.5”
TYPE SP STRUCT
COURSE.
0.02 SLOPE
6.7” ASPHALT (T1, T2 & T3)
EXISTING
ASPHALT LAYER
TO REMAIN.
8.0” LIMEROCK BASE.
Alternative Treatment
--No Treatment (Control)
--PAVETRAC MT-1
--ARMI
--GLASGRID 8511
--PETROGRID 4582
ASPHALT (OVERBUILD)
COURSE 1.5”MIN).
12.0” SUBGRADE .
NOT TO SCALE
4
5
Cracking
Location 1. NBTL
Construction
Cracking (SF/1000SF)
1000
900
800
700
600
500
400
300
200
100
0
2007
2008
2007
2008
Control 1A
2011
2012
PaveTrac
2013
ARMI
2014
Control 1B
2009
PetroGrid
2010
2011
GlasGrid
2012
PaveTrac
2013
ARMI
2014
Control 1B
Location 2 . NBTL
1000
900
800
700
600
500
400
300
200
100
0
Construction Cracking (SF/1000SF)
2010
GlasGrid
Location 1. SBTL
1000
900
800
700
600
500
400
300
200
100
0
2007
2008
Control 2A
2009
PetroGrid
2010
GlasGrid
2011
2012
PaveTrac
ARMI
2013
2014
Control 2B
Location 2. SBTL
1000
900
800
700
600
500
400
300
200
100
0
Construction Cracking (SF/1000 SF) -
2009
PetroGrid
Construction
Cracking (SF/1000SF)
Control 1A
2007
2008
Control 2A
2009
PetroGrid
2010
2011
GlasGrid
6
2012
PaveTrac
2013
ARMI
2014
Control 2B
Rutting
7
Mean Roughness Index
8
Deflection
9