Transcript Regional Asphalt Seminar: Longitudinal Joint Monitoring Efforts February 20, 2014 Todd Rorrer Central Office Materials Regional Asphalt Field Engineer.

Regional Asphalt Seminar:
Longitudinal Joint Monitoring Efforts
February 20, 2014
Todd Rorrer
Central Office Materials
Regional Asphalt Field Engineer
2
Presentation Outline
1. History of Longitudinal Joint Density
2. District / State Review
3. Going forward in 2014
3
1 - HISTORY ON LONGITUDINAL JOINT
DENSITY
4
(Recent) History of Virginia’s Efforts
 2005 Joint VAA & VDOT Longitudinal Joint
Construction Memo
 2006 Longitudinal Joint Study Initiated
 2009 Construction and Monitoring was Increased
 2010 Longitudinal Joint Density Report on 2005 to
2009 Data
 2011 AQTF
 2013 Implement Specification Change to Monitor and
Correct ongoing construction techniques of the Joint
during construction
5
WHAT WE HOPED TO ACHIEVE WITH THE 2013 LJD
INITIATIVE
Keep the LJD on everyone's Radar,
When we monitor the density we achieve good performance
When it falls off he Radar and the performance suffers
Collect the Data!
Able to analyze trends
Where are we doing well
Where are we doing not so well
Confined vs. Unconfined, is the same value achievable
What about SMA? Can we monitor our SMA Joints without coring
Longitudinal Joint Construction
 Why is longitudinal joint construction important?
Achilles Heel for asphalt pavements if not constructed properly, can
be the main entry point for water
Deterioration of joint leads to early pavement maintenance
 Many different approaches to construct the joint
To which Ken Arthur will speak
 Specifications now require that Joint density shall
be at least 95% of Target Control Strip Density.
Goal after 5 years old
8
2 - DISTRICT/STATE REVIEW OF DATA
9
2013 Collection Efforts and Review
• All Paving conducted in 2013 was monitored
• Data from 71 Separate Construction Projects and
Paving Schedules were analyzed
60
50
40
Acceptance (Individual) Distribution
Acceptance (Lot Avg.) Distribution
LJD (Individual) Distribution
30
LJD (Lot Avg) Distribution
Acceptance Range
Ряд7
20
10
0
0,9
0,92
0,94
0,96
0,98
1
1,02
1,04
1,06
1,08
10
Confined vs. Unconfined
The Analysis of the Confined Measurements vs.
Unconfined Measurements showed no Significant in the
ability to achieve 95% compaction of the unconfined joint
Confined vs Unconfined LJD Measurements (Statewide)
89.00%
1.2
91.00%
93.00%
95.00%
97.00%
99.00%
101.00%
103.00%
105.00%
107.00%
50
Unconfined Prob
1
40
0.8
Confined Prob
30
0.6
Longitudinal Spec
Limit
0.4
0.2
0
20
10
0
100.0%
11
District Breakdown of Individual Readings
Bristol
Salem
Lynchburg
Richmond
Hampton Roads
Fredericksburg
Culpeper
Staunton
NOVA
Total LJD
Readings
Individual
Failures
% Failures
# of Projects
Represented
1359
930
1246
1046
2041
3069
610
695
3703
111
127
98
114
93
43
58
69
213
8.17%
13.66%
7.87%
10.90%
4.56%
1.40%
9.51%
9.93%
5.75%
13
13
9
2
7
6
4
5
13
12
Percent Failure by Project
# of Projects with
# of Projects with
Total Projects
less than 6%
no Failures
Failures
% of
% With Less
Projects
than 6%
With No
Failures
Failures
Bristol
13
8
9
61.54%
69.23%
Salem
13
3
5
23.08%
38.46%
Lynchburg
9
0
4
0.00%
44.44%
Richmond
2
0
1
0.00%
50.00%
Hampton Roads
7
2
3
28.57%
42.86%
Fredericksburg
6
2
0
33.33%
0.00%
Culpeper
4
1
3
25.00%
75.00%
Staunton
5
0
3
0.00%
60.00%
NOVA
12
2
4
16.67%
33.33%
6.00%
5.00%
4.00%
077-010-741-C501
9999-013-R75, N501
PM1A-961-F14,C501
PM1A-961-F14,N501
PM1A-961-F14,N501
PM1A-961-F14,N501
PM1A-961-F14,N501
PM1A-961-F14,N501
9999-961-F14,N501
PM1B-961-F14, N501
PM1B-961-F14, N501
PM1B-961-F14, N501
PM1B-961-F14, N501
PM1B-961-F14, N501
PM1B-961-F14, N501
PM1B-961-F14, N501
PM1B-961-F14, N501
PM1C-961-F14,N501
PM1C-961-F14,N501
PM1C-961-F14,N501
PM1C-961-F14,N501
PM1C-961-F14,N501
PM1C-961-F14,N501
PM1D-961-F14, N501
PM1D-961-F14, N501
PM1D-961-F14, N501
PM1D-961-F14, N501
PM1D-961-F14, N501
PM1D-961-F14, N501
PM1D-961-F14, N501
PM1D-961-F14, N501
PM1D-961-F14, N501
9999-083-R21,N501
PM1F-961-F14,N501
9999-097-T39, N501
9999-097-T39, N501
9999-097-T39, N501
9999-097-T39, N501
9999-097-T39, N501
13
Bristol
District LJD Lot Standard Deviation
110.00%
105.00%
Standard Deviation
100.00%
Average
3.00%
95.00%
2.00%
90.00%
1.00%
85.00%
0.00%
80.00%
PM2C
PM2C
4.00%
I81 Slab
PM2B
District LJD Lot Standard Deviation
PM2S
PM2S
PM2S
PM2L
PM2L
PM2S
PM2K
PM2L
PM2K
PM2K
PM2K
PM2I
PM2K
PM2K
PM2H
PM2I
PM2H
PM2H
PM2H
4.50%
PM2G
PM2G
PM2G
5.00%
PM2F
PM2F
PM2E
PM2E
PM2F
PM2E
PM2E
PM2A
PM2D
PM2D
PM2A
077-010-741-C501
14
Salem
Standard Deviation
110.00%
Average
105.00%
3.50%
3.00%
100.00%
2.50%
2.00%
95.00%
1.50%
90.00%
1.00%
0.50%
85.00%
0.00%
80.00%
077-010-741-C501
PM3H-062-F13, N501
PM3H-062-F13, N501
PM3H-062-F13, N501
PM3H-062-F13, N501
PM3G-963-F13, N501
PM3G-963-F13, N501
District LJD Lot Standard Deviation
PM3G-963-F13, N501
PM3F-071-F13, N501
PM3F-071-F13, N501
PM3F-071-F13, N501
PM3F-071-F13, N501
PM3E-041-F13, N501
PM3E-041-F13, N501
PM3E-041-F13, N501
PM3E-041-F13, N501
PM3E-041-F13, N501
PM3C-024-F13, N501
PM3C-024-F13, N501
PM3C-024-F13, N501
PM3C-024-F13, N501
PM3C-024-F13, N501
PM3C-014-F13, N501
PM3C-014-F13, N501
PM3B-015-F13, N501
PM3B-015-F13, N501
PM3B-015-F13, N501
PM3B-015-F13, N501
PM3B-015-F13, N501
PM3A-062-F13, N501
PM3A-062-F13, N501
PM3A-062-F13, N501
PM3A-062-F13, N501
PM3A-062-F13, N501
PM3A-062-F13, N501
PM3A-005-F13, N501
PM3A-005-F13, N501
3.00%
PM3A-005-F13, N501
15
Lynchburg
3.50%
110.00%
Standard Deviation
Average
105.00%
2.50%
100.00%
2.00%
1.50%
95.00%
1.00%
90.00%
0.50%
85.00%
0.00%
80.00%
FO-85-964-976 N501
FO-85-964-976 N501
FO-85-964-976 N501
FO-85-964-976 N501
FO-85-964-976 N501
District LJD Lot Standard Deviation
FO-85-964-976 N501
FO-85-964-976 N501
FO-85-964-976 N501
FO-85-964-976 N501
FO-85-964-976 N501
FO-85-964-976 N501
FO-85-964-976 N501
FO-85-964-976 N501
FO-85-964-976 N501
FO-85-964-976 N501
FO-85-964-976 N501
FO-85-964-976 N501
FO-85-964-976 N501
FO-85-964-976 N501
FO-85-964-976 N501
FO-85-964-976 N501
FO-85-964-976 N501
FO-85-964-976 N501
FO-85-964-976 N501
(NFO)PM4A-964-F13,P401
(NFO)PM4A-964-F13,P401
(NFO)PM4A-964-F13,P401
(NFO)PM4A-964-F13,P401
(NFO)PM4A-964-F13,P401
(NFO)PM4A-964-F13,P401
(NFO)PM4A-964-F13,P401
(NFO)PM4A-964-F13,P401
(NFO)PM4A-964-F13,P401
3.00%
077-010-741-C501
16
Richmond
3.50%
110.00%
Standard Deviation
Average
105.00%
2.50%
100.00%
2.00%
1.50%
95.00%
1.00%
90.00%
0.50%
85.00%
0.00%
80.00%
3.50%
077-010-741-C501
PM5A-091-734,P401
PM5G-001-632,P401
PM5G-001-632,P401
PM5G-001-632,P401
PM5G-001-632,P401
PM5G-001-632,P401
PM5G-001-632,P401
PM5G-001-632,P401
PM5G-001-632,P401
PM5G-001-632,P401
PM5G-001-632,P401
PM5G-001-632,P401
PM5H-121-233,P401
PM5H-121-233,P401
PM5H-121-233,P401
PM5H-121-233,P401
PM5H-121-233,P401
PM5H-121-233,P401
PM5H-121-233,P401
PM5H-121-233,P401
PM5P-040-734,P401
PM5P-040-734,P401
PM5P-040-734,P401
PM5P-040-734,P401
PM5P-040-734,P401
PM5P-040-734,P401
PM5P-040-734,P401
PM5P-040-734,P401
PM5P-040-734,P401
PM5P-040-734,P401
PM5A-091-734,P401
PM5A-091-734,P401
PM5D-087-615,P401
PM5E-047-646,P401
PM5E-047-646,P401
PM5E-047-646,P401
PM5E-047-646,P401
PM5E-047-646,P401
PM5E-047-646,P401
PM5E-047-646,P401
PM5E-047-646,P401
17
Hampton Roads
4.00%
110.00%
District LJD Lot Standard Deviation
Standard Deviation
Average
2.50%
2.00%
1.50%
0.50%
0.00%
105.00%
3.00%
100.00%
95.00%
90.00%
1.00%
85.00%
80.00%
2.00%
077-010-741-C501
PM6C-59-F13, P401
PM6B-89-F13, P401
PM6B-89-F13, P401
PM6B-89-F13, P401
PM6B-89-F13, P401
PM6B-89-F13, P401
PM6B-89-F13, P401
PM6B-89-F13, P401
PM6B-89-F13, P401
PM6B-89-F13, P401
PM6B-89-F13, P401
PM6B-89-F13, P401
PM6B-89-F13, P401
(NFO)PM6B-89-F13,P401
(NFO)PM6B-89-F13,P401
PM6B-89-F13, P401
PM6B-89-F13, P401
PM6C-59-F13, P401
PM6C-59-F13, P401
PM6C-59-F13, P401
PM6C-59-F13, P401
PM6C-59-F13, P401
PM6C-59-F13, P401
PM6C-59-F13, P401
PM6C-59-F13, P401
PM6C-59-F13, P401
PM6C-59-F13, P401
PM6C-59-F13, P401
PM6D-79-F13,P401
PM6D-79-F13,P401
PM6E-89-F13, P401
PM6E-89-F13, P401
PM6E-89-F13, P401
PM6E-89-F13, P401
PM6E-89-F13, P401
PM6E-89-F13, P401
PM6E-89-F13, P401
PM6E-89-F13, P401
PM6E-89-F13, P401
PM6E-89-F13, P401
PM6E-89-F13, P401
PM6C-59-F13, P401
PM6C-59-F13, P401
PM6C-59-F13, P401
18
Fredericksburg
2.50%
110.00%
District LJD Lot Standard Deviation
Standard Deviation
Average
0.50%
0.00%
105.00%
1.50%
100.00%
95.00%
1.00%
90.00%
85.00%
80.00%
2.00%
077-010-741-C501
PM7E-967-F13,P401
PM7E-967-F13,P401
PM7C-967-F13,P401
PM7E-967-F13,P401
PM7E-967-F13,P401
PM7E-967-F13,P401
PM7E-967-F13,P401
PM7E-967-F13,P401
PM7C-967-F13,P401
PM7C-967-F13,P401
PM7C-967-F13,P401
PM7C-967-F13,P401
PM7E-967-F13,P401
PM7E-967-F13,P401
PM7E-967-F13,P401
PM7E-967-F13,P401
PM7C-967-F13,P401
PM7C-967-F13,P401
PM7C-967-F13,P401
PM7C-967-F13,P401
PM7C-967-F13,P401
PM7C-967-F13,P401
PM7E-967-F13,P401
PM7E-967-F13,P401
PM7E-967-F13,P401
PM7A-967-F13,P401
PM7A-967-F13,P401
PM7A-967-F13,P401
PM7A-967-F13,P401
PM7A-967-F13,P401
PM7A-967-F13,P401
PM7A-967-F13,P401
PM7A-967-F14,P401
PM7A-967-F14,P401
PM7A-967-F14,P401
PM7A-967-F14,P401
PM7A-967-F14,P401
PM7A-967-F14,P401
PM7A-967-F14,P401
PM7A-967-F14,P401
PM7A-967-F13,P401
PM7A-967-F13,P401
19
Culpeper
2.50%
110.00%
District LJD Lot Standard Deviation
Standard Deviation
Average
0.50%
0.00%
105.00%
1.50%
100.00%
95.00%
1.00%
90.00%
85.00%
80.00%
0.00%
(NFO) PM8K-093-F13, N501
(NFO) PM8K-093-F13, N501
(NFO) PM8K-093-F13, N501
(NFO) PM8K-093-F13, N501
3.50%
(NFO) PM8K-093-F13, N501
District LJD Lot Standard Deviation
(NFO) PM8K-093-F13, N501
PM8J-0085-F13, N501
PM8J-0085-F13, N501
PM8J-0085-F13, N501
PM8J-0085-F13, N501
PM8J-0085-F13, N501
PM8J-0085-F13, N501
PM8J-0085-F13, N501
PM8J-0085-F13, N501
PM8J-0085-F13, N501
PM8J-0085-F13, N501
PM8J-0085-F13, N501
PM8I-034-F13, N501
PM8I-034-F13, N501
PM8I-034-F13, N501
PM8I-034-F13, N501
PM8I-034-F13, N501
PM8H-021-F13, N501
PM8H-021-F13, N501
PM8H-021-F13, N501
4.00%
PM8H-021-F13, N501
4.50%
PM8H-021-F13, N501
PM8H-021-F13, N501
PM8H-021-F13, N501
PM8F-069-F13, N501…
PM8F-069-F13, N501…
PM8F-069-F13, N501…
PM8F-069-F13, N501…
PM8F-069-F13, N501…
PM8F-069-F13, N501…
PM8F-069-F13, N501…
077-010-741-C501
20
Staunton
110.00%
Standard Deviation
Average
105.00%
3.00%
100.00%
2.50%
2.00%
95.00%
1.50%
90.00%
1.00%
0.50%
85.00%
80.00%
6.00%
5.00%
4.00%
100.00%
3.00%
95.00%
2.00%
90.00%
1.00%
85.00%
0.00%
80.00%
077-010-741-C501
PM-9A-13
PM-9A-13
PM-9A-13
PM9A-96A-155, N501
PM9A-96A-155, N501
PM9D-96A-155,N501
PM9D-96A-155,N501
PM9D-96A-155,N501
PM9D-96A-155,N501
PM9D-96A-155,N501
PM9D-96A-155,N501
(NFO) PM9G-029-148, N501
(NFO) PM9G-029-148, N501
(NFO) PM9G-029-148, N501
(NFO) PM9G-029-148, N501
(NFO) PM9G-029-148, N501
(NFO) PM9G-029-148, N501
PM9I-96A-136,N501
PM9I-96A-136,N501
PM9I-96A-136,N501
PM9I-96A-136,N501
PM9I-96A-136,N501
PM9I-96A-136,N501
(NFO)PM9L-053-150, N501
(NFO)PM9P-076-151,N501 (PM-9P-…
(NFO)PM9P-076-151,N501 (PM-9P-…
(NFO)PM9P-076-151,N501 (PM-9P-…
(NFO)PM9P-076-151,N501 (PM-9P-…
(NFO)PM9R-000-149,N501
(NFO)PM9R-000-149,N501
(NFO)PM9R-000-149,N501
(NFO) PM9U-96A-165 N501
(NFO) PM9U-96A-165 N501
(NFO) PM9U-96A-165 N501
(NFO) PM9U-96A-165 N501
(NFO) PM9U-96A-165 N501
(NFO) PM9U-96A-165 N501
(NFO) PM9U-96A-165 N501
(NFO)PM9V-076-152,N501
(NFO)PM9V-076-152,N501
(NFO)PM9V-076-152,N501
PM-9A-13
(NFO)PM9G-029-148, N501
Route 7 NOVA
21
NOVA
District LJD Lot Standard Deviation
110.00%
Standard Deviation
Average
105.00%
22
3 - GOING FORWARD IN 2014
23
GOING FORWARD IN 2014
Continue to collect the data in 2014
Increased emphasis on quality joint construction
24
Regional Asphalt Seminar:
Longitudinal Joints
February 20, 2014
Central Office Materials