HomeMy Public PortalAbout110_031_Jones Paving Exhibit - Marked test sites evaluation Summary Open Graded Interlayer 111 DEPARTMENT OF TRANSPORTATION
STATE OF GEORGIA
INTERDEPARTMENT CORRESPONDENCE
FROM: Tony J. Felix DATE: May 26, 2011
TO: Sheila Hines, State Bituminous Construction Engineer
SUBJECT: Summary of OGI Test Site Performance
As you are aware, In October 2010, several test sections including various pavements were placed on US80 in Bulloch
County on project #M004129 to determine the crack reflection mitigation characteristics of each. This project on
US80/SR26 began at US25/SR67 and extended through the city of Portal to the Emanuel County Line. The project typical
required a single layer surface treatment using#7 stone and CRS-2H placed over the existing pavement with 801bs/yd2 of
leveling to be placed over it. This project was selected to evaluate these characteristics due to the original roadbed being
concrete. This section of US 80 has approximately 5 inches of asphalt over the original concrete travel lane (see photo 1-2)
V„...
OP
itipsistnitait
4.'4 . .. ;Orr`:'°‘--'. ji:.fiff--4,----r."4--..-"''',...-i'mr..... 4.1*:?;11,■.7:---..'-k-- .„....r76,' -.'"fr. '-',461, - ....640?--o-p.
.T.0
'ir --i'i, • .17-;-' -.4-
- '.,i,..„.
., - ..,
;-:-,•'‘ - --' •.. ',0,4"i'i,i'
. --
- . •
r, var vir,-.., ... , • #," ^", -'-.. r, v. ,...)
• . - . ,,, ., ., ,,
VF.-fr. 41i1.4
'• ' .11.',4" ••, 4• 4
.II,= 401.., , • ,P .i."`‘' r
'4‘ ' -
...e..- *-,
,.,... . 1.,
71 - $ "•"7"
*a
.4 .4 yt.,1-'. ',,C.. * 41---
' •••4 - 't ,
%al, - .....1, --- be rdi-.,
'-‘,11,' • ...,)''' .- ,.,. • 0., "
4"._,1F:4- -f' P .4411*: . 4r4?
Pi'1-44,4v'*4' 4:1 - '..4gai '
! : .7. f --.,.......ir
Photo 1,US 80 Original Roadbed Showing Underlying Concrete
Photo 2,US 80 Existing Pavement with Reflective Cracking/Block
The following detail shows each test section and the rehabilitative strategy application used in its limits.
As shown a total of 4 test sites were marked on the existing pavement and dirt shoulder prior to being
overlaid. Each site contained a transverse bottom up reflective crack extending completely across the lane
that originated from an underlying concrete expansion joint. These sites have been continually monitored
for the return of reflective cracking.
Begin Project West Bound Lane East Bound Lane
Rwy Marker 0+00 I
8+65 I to
cm
Begin Open Graded Crack Relief
I —I
Interlayer/Leveling @ 100 lbs/yd2 with
PG67-22 tack @ .06gall/yd2 I
S
Note: Approx. 90-951bs/yd2 = 1 inch I f'7
70
compacted mat Vi
I N
I
I CD
34+44 Test Site 1 M
0000
0
I x-
64+52 I l
Test Site 2
O.N
O
End OGI with 67 22 Tack I
87+55 W
Begin OGI with CRS-2L Ln
Tack @ 09 gall/yd2 I 3
3
92+82
Test Site 3
(.1
.
I 3
111+15 End OGI with CRS-2L GHQ CU
Begin Control Section with 80 lbs/yd2 of I n
A
9.5mm type I Lev with PG67-22 Tack @ O
113+96 .04 gall/yd2
3.
Test Site 4 I CIq
OP
r
I °
End Control Section with 9.5mm ley 13
124+37 Begin SST with .35 gall/yd2 of CRS-2H I p
and 801bs/yd2 9.5mm leveling n CD
I -
End SST with .35 gall/yd2 CRS-2H '"F
129+66 Begin SST Accor.ing to project typica
—
A
I a)
I
1
C r
tY
k t1 V 'kn n� ‘k'',:':..' { Y ''' °'1 f ( 6
n
Photo 3, October 2010 Test Site 1 OGI adjacent SST and Leveling
, 1 g
x Ar ,,
it i4 ° rani : " y �,.
�}f 7 -.� �}r y� v
t► IV. y 777 r, `" ,1 4
ilooriglidti. 1...,,t:.46.44;111* '4.404t7U.rti,:h:f_410,..170ci"dI wry, ft'" a44 I'h,S'VT1+ p7'„ '}i1 .'.'. h_•}. '.,.ir. � �i:,
41.4 ..' 4 i Jay '1 ;"I.h ,0/A. { r� '7�"ems{
. 7' '!r+ '" ` eh 410`s ikr'Or: A jib 4.`! *a1 P . v _ + .. °.ANt Y' .i -R
; .4,- ,1 r}s
i ""tom �j .firm .; S�`�`t"
, L .1.--•••:,...--4-,* . ♦.-. s fy ll;a,+.i!� r .i � : .'!,5
IN
66' ms P
O
It
. ♦.,}'V, aTI.�. �I., , ,
Photo 4, May 2011 Cores Test Site 1
- -, r
t;•` r,, .Lre °0 ` ". '�>' ,. 1 for+aY� _ `n`° R.
`�
)-ie.:-,-'5-.=...,. .g.4414°,..4.4--it.3 .,. �"'`mac*} _```� °� t
4 �_1 't �'
w } W'4 4`^" s , 4r ti`s
Photo 5, October 2010 Test Site 2 OGI adjacent to SST and Leveling
• �; •
s � ,
j • w►.
AO •
TTT' i
M L `
'' • ' �((.�� *;,fir
I. el. . at!...In.:!
1♦ ITS,P '• ■
,,� ,s ir:P� '
t r .0 ..„. i„,,,-,,..... .., ,,,, .s. • 4...L.,..4410:
.�` R i. '��
UMIIIIMPNIMilli..- Ay-
Photo 6, May 2011 Cores Test Site 2
,.,,Vt ' ::'',1' ,4,..''...,,'t, '.,', ,:''''■ '...‘;.."'.,■ ' .
h"."4, l' ,,.:',i", • " '`,..$ ' ,.;, ,.., . :,. ,
1 i -- , "", . ', .. ' ," • ' 4 4
' . • . , . '
0,* '
. ,
.z:.
. .
' .
Photo 7, October 2010 Test Site 3 OGI adjacent to SST and Leveling
..
:1/.110..' elijiA-,400,-,'P;',''',:','#' -)isin' 1 r..w•. •.*:it.ilit.-.4- - .
rk:, ,vrel.,...-:°:..,..-.1,-.........' ,.. 4
°of:. •Islif • ' .4.4,44.ii*,;::1,1Qi .,-,411i„Aii4,,,,,,*;:.1.14. ,.
III.:•...0.1jhO,P410,'" „..41,1141 .. %.,16 4.'°,` . ... ... . ....,ori,.1.1.“4.,,,,d,'
i''F'ar'.------. re'. 10.."1/4., 'ffialimit;'It'',..47,,•or"..1.11r.. i
IV'd■Iiii;%''';b.. '' ","7:4V.*...."11!t',,,,,...S.: ** '.... 4,`.3100114,.. . . .,,, ..it.... ...,,
.to,Wit A 100. +-.It%.1. A../......r,-1,,,-.4 .'' • .1(,,, ,,
,,, A. .1., .10.V...11/4■S -• Of i!,10. 11
111 OW
.t -•.. 1,ly 440' 't tv. .. - 1 ''',41 ,4111■.4 R.fik_,.1 "'C.6 11
4. .._11'.
:1..6.:_.....,,.. ..foie.At .,-.4. .jh' 41, -..? ---3,- "■4r, ,
-1- 1- \ - • is i- 11,44,. A 1
- --e. - ‘--
" • 11 11, ; " 06-'"--I i.7,!.". ,11, 0,4. - • 4,
,,„ ... .
1y, ; .,.,e,!..41.0„ (-
7-2-.-,4.4,16-5..-.
,..,..,..;,,.: ,.4.a 4,011., fr.-7;A... r .-------H, '--- 4,9kte -----'a•. 1.11•4
qv:,••:4110-•" -..-...•••-,-,,, -
-•• -.r,r ...' -*bl''''. Z-?(- \ ---7 . i i•-' 4131":?:--104:4. -'.41'.• i
- ---., •.•••!061'F
''#,:.$,:i?/Ow li-tkiiii.-Ir . v .- •'""::16.7 7
.. ...
.-4/.
- ' ft J/0•
0 , .16 p. , ..1. # ••r-It.,..., . ... ‘I'4..:::• 7-
4 *a, -I ' U..'lei.. "■ "••• SP!.:11111114,.. it. ,
.,,, 111.it.. " :41.0* '*.r- .,..* ....P•,':4 e . '•Ir..4%"ryWr
A • • IV • , •rif, lb-A )'„, ... IP..~.-t,
' . d,
" -.
Acilib . ,
Photo 8, May 2011 Cores Test Site 3
f . c. 4.0,of 01 19111•1411111116., , .-.4,,t_ ' *. af Tr*1114,*- *Niolik,.
-- . � , ..:? "�.
t , �►' •r ` °4. a! Mt r p ','. •4 ya " �+ • i 1.v I a ■ .. ' e t ' r•*r*. J ! b,ra ;:�� 1:: �f 40 j f
� * B ,
c„ % ►./,„f q ., a f�*Y , 4.1,•4!►'R f7 v
t k 90 r
'' '1".”) 141'1',01411,1Y"'4,:1111P-„,44:i IA' --•/q 7ST S,-Fe . - elk N.vii ' ''' i
' -._ WINO.'
,111 .r 7,' e '41114 ° i r
ub , : '� , _ 4. A
•
, �4e -iii, f: *r + +
yy • .. •y;11.-:-....... am. t- 7
Y7..Z' 'd�! '4:11,1'.4: +, :(! 4 H 4f �y.
11 it
'.y�jyy • �y7
• r -111e.:111 f
. . l
.
• 4«` "V - am ` � -%, x • .i
I �r ♦ t• i yt, , .
1 .' 41.4.11.40#011--:::i" 4 '+� .1.41111:.‘444 ,� r 4, J. I
Photo 9, May 2011 Test Site 3 SST adjacent to Leveling Control Section
As seen in each of the pictures of the cores, at this time none of the pre-existing cracks have reflected
through into the surface lift. The core taken at Site 1 on the SST lane showed that the crack had slightly
entered the single layer surface treatment interlayer. All other cores taken at test sites including the
control section where 9.5mm leveling only was used over the existing showed no signs of crack
propagation into the pavements lifts above the original crack.
As you know, during the months of December 2010 through February 2011, a large quantity of reflective
cracks were observed and noted in the surface mix. These cracks were found in the SST sections,in the
leveling control section, and throughout the City of Portal. These reflective bottom up cracks extended
completely across the lanes (see photo 10— 12).
s:-
tr ..1, -
lk Ifr
INAWOOK
r
Photo 10, OGI Adjacent to ST, Approximately 64+00
•
Photo 11, Control Section 801bs leveling only cracking
Photo 12,US80 City of Portal mill and inlay,before and after three weeks
As you know, at this time a large majority of the cracking observed in the SST and Control sections have
slightly healed or partially closed up.Although a scar from the original crack still exists,traffic and
summer heat have for the most part closed the crack up. The full lane width cracks seen in the new
surface in the above photos compared to the crack scrars seen now,may be attributed to the thermal
expansion and contraction characteristics of the underlying PCC. Since the original observation of the
notable cracks were found in the winter months and during the hot summer months they have healed up,it
can be determined that newer pavements handle these internal stesses better than aged ones. The sites
where a notable crack was observed in the winter months have been marked and dated. They will be
closely monitored for the return of the cracks as traffic applies compression loading to the pavement
surface and tensile stresses to the lower part of the pavement structure. If any father information is
needed pertaining to this on-going evaluation please let us know.