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Updates to RDD Control Systems and Rolling Sensors
1.
2016 ... Kenneth H. Stokoe II, Jung-Su Lee · This document discusses the improvements made to the RDD system on the TPAD. This work was performed from January 2013 to August 2014. The first improvement involved the air pressure control system on the rolling sensors. The second improvement involved modifications to the towing
6005-01-P2 [CTR] ... Product 5-6005-01-P2
Full-text Link:
https://library.ctr.utexas.edu/ctr-publications/5-6005-01-p2.pdf
201 KB
______________________________________________________________________________________________________
Statewide Implementation of the Total Pavement Acceptance Device (TPAD). Final Report
2.
2016 ... Kenneth H. Stokoe II, Jung-Su Lee, Tom Scullion · Construction and development of the Total Pavement Acceptance Device (TPAD) was completed at the end of August 2012 through TxDOT Research Project 0-6005-01. The TPAD is a multi-function pavement evaluation device used to profile continuously along pavements at speeds in
6005-01-1 [CTR] ... FHWA/TX-14/5-6005-01-1
Full-text Link:
https://library.ctr.utexas.edu/ctr-publications/5-6005-01-1.pdf
3.2 MB
______________________________________________________________________________________________________
Assessment of the Structural Condition of Galveston Airport Pavements after Hurricane Ike Using the Rolling Dynamic Deflectometer
3.
[2014] ... Jung-Su Lee [and three others] · A post-disaster investigation of runways at the Scholes International Airport in Galveston, TX is presented. The investigation deals with evaluating structural conditions of two runways and estimating possible damage to those runways from Hurricane Ike in September 2008. The airport was covered
Poster 2014 CTR Symp: Lee
Full-text Link:
No online resource supplied by researcher
______________________________________________________________________________________________________
Conference/Workshop Presentation Materials
4.
2014 ... Jung-Su Lee and Kenneth H. Stokoe II (CTR); Thomas Scullion (TTI); Joe Leidy and Edward Oshinski (TxDOT) · "Project No. 5-6005-01: Statewide Implementation of Total Pavement Acceptance Device (TPAD) is coming to completion. During the operating period of the TPAD (January 1, 2013 through August 31, 2014), the
6005-01-P4 [CTR] ... Product 5-6005-01-P4
Full-text Link:
https://library.ctr.utexas.edu/ctr-publications/5-6005-01-P4.pdf
3.3 MB
______________________________________________________________________________________________________
Data Collected on TPAD Implementation Projects
5.
2014 ... Jung-Su Lee, Kenneth H. Stokoe II · "TPAD testing was conducted by CTR personnel at the following locations during TxDOT Project 5-6005-01: Statewide Implementation of Total Pavement Acceptance Device (TPAD) (January 2013 through August 2014): (1) San Marcos Airport, (2) IH 10 in El Paso (two tests conducted at this site),
6005-01-P3 [CTR] ... Product 5-6005-01-P3
Full-text Link:
https://library.ctr.utexas.edu/ctr-publications/5-6005-01-P3.pdf
5.5 MB
______________________________________________________________________________________________________
Software and Manual for Recording and Analyzing RDD Rolling Sensors
6.
2013 ... by Kenneth H. Stokoe II, June-Su Lee · "As part of the development of the Total Pavement Acceptance Device (TPAD), CTR created post-processing software for calculating the dynamic deflections of the pavement from the output of the rolling dynamic deflectometer (RDD) rolling sensors. To analyze the data, the software performs
6005-P2 [CTR] ... Product 0-6005-P2
Full-text Link:
See notes
______________________________________________________________________________________________________
Developing a Testing Device for Total Pavements Acceptance. Final Report
7.
2013 ... CTR: Kenneth H. Stokoe, II [and four others]; TTI: Thomas Scullion, Wenting Liu · During the fourth year of Project 0-6005, construction of the Total Pavement Acceptance Device (TPAD) was completed. The TPAD is a multi-function pavement evaluation device used to profile continuously along pavements at speeds in the range of
6005-3 [CTR] ... FHWA/TX-13/0-6005-3
Full-text Link:
https://library.ctr.utexas.edu/ctr-publications/0-6005-3.pdf
3.7 MB
______________________________________________________________________________________________________
0-6005, Development of the Total Pavement Acceptance Device (TPAD) and Initial Pavement Studies
8.
2013 ... Research Supervisor: Kenneth H. Stokoe II; Researchers: Jung-Su Lee [and four others] · "The predecessor of the total pavement acceptance device (TPAD) is the rolling dynamic deflectometer (RDD). The RDD was developed by the Center for Transportation Research (CTR) at the University of Texas at Austin (UT) with
6005 Summary [CTR] ... PSR 0-6005-S ... Project Summary Report
Full-text Link:
https://library.ctr.utexas.edu/hostedpdfs/txdot/psr/0-6005-s.pdf
349 KB
______________________________________________________________________________________________________
User's Manuals for Manufacturers' Components Integrated into the TPAD
9.
[2013] ... Ken Stokoe II, June-Su Lee · Product information and user guides for various components of the TPAD (Total Pavement Acceptance Device). · Publication date based on e-mail from CTR publication department, 2/18/2013.; Title from Texas Department of Transportation memo dated 1/10/2013.; At end of title: "Note: The
6005-P5 [CTR] ... Product 0-6005-P5
Full-text Link:
https://library.ctr.utexas.edu/ctr-publications/0-6005-P5.zip
433 MB *** large file ***
______________________________________________________________________________________________________
Developing a Testing Device for Total Pavements Acceptance. Third-Year Report
10.
2012 ... CTR: Kenneth H. Stokoe, II [and four others]; TTI: Thomas Scullion and Wenting Liu · During the third year of Project 0-6005, significant progress was made towards building the Total Pavement Acceptance Device (TPAD). The TPAD will be a multi-function pavement evaluating device that will be used to profile continuously along
6005-4 [CTR] ... FHWA/TX-11/0-6005-4
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/0_6005_4.pdf
8.2 MB
______________________________________________________________________________________________________
Developing a Testing Device for Total Pavements Acceptance
11.
2012 ... Kenneth H. Stokoe, II, CTR [and seven others]; Thomas Scullion, Wenting Liu, TTI · During the second year of Project 0-6005, significant progress was made towards building the Total Pavement Acceptance Device (TPAD). The TPAD will be a multi-function device that will be used to profile continuously along pavements at speeds
6005-2 [CTR] ... FHWA/TX-11/0-6005-2
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/0_6005_2.pdf
7 MB
______________________________________________________________________________________________________
Characterization of Highway Pavements Using the Rolling Dynamic Deflectometer
12.
[2011] ... Magdy Mikhail, Dar-Hao Chen, John Bilyeu, Kenneth H. Stokoe, Michael R. Murphy, Boo H. Nam, Jung-Su Lee · The Rolling Dynamic Deflectometer (RDD) was developed at the University of Texas at Austin by Dr. Kenneth H. Stokoe II and his colleagues. The RDD is used to continuously measure pavement deflections while
Poster 2011 CTR Symp: Mikhail
Full-text Link:
No online resource supplied by researcher
______________________________________________________________________________________________________
Progress during the First Year Towards Building the Total Pavement Acceptance Device (TPAD) -- revised August 2010
13.
2010 ... Kenneth H. Stokoe, II [and six others] (CTR); Thomas Scullion and Wenting Liu (TTI) · During the first year of Project 0-6005, significant progress was made towards developing the Total Pavement Acceptance Device (TPAD). The TPAD will be a multi-function device that will be used to survey continuously along pavements at
6005-1 [CTR] ... FHWA/TX-11/ 0-6005-1
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/0_6005_1.pdf
2.8 MB
______________________________________________________________________________________________________
Quantify the Benefits of Using Geosynthetics for Unbound Base Courses
14.
2007 ... RS: Jorge Zornberg; Researchers: Jorge Prozzi and Kenneth Stokoe · Base reinforcement results from the addition of a geosynthetic at the bottom or within a base course to increase the structural or load-carrying capacity of a pavement system. While there is clear evidence that geosynthetic reinforcements can lead to
4829 Summary [CTR] ... PSR 0-4829-s ... Project Summary Report, 0-4829
Full-text Link:
https://library.ctr.utexas.edu/hostedpdfs/txdot/psr/4829.pdf
______________________________________________________________________________________________________
Evaluation of Non-Nuclear Methods for Compaction Control
15.
2006 ... Ellen M. Rathje [and five others] · This study evaluated currently available, non-nuclear devices as potential replacements for the nuclear gauge for soil compaction control. Devices based on impact methods, electrical methods, and stiffness methods were identified and evaluated through two field studies and two laboratory
4835-1 [CTR] ... 0-4835-1
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/0_4835_1.pdf
3.4 MB
______________________________________________________________________________________________________
Assessment of Rapid Methods for Density Control of MSE Walls and Embankments
16.
2006 ... RS: Ellen Rathje; Researchers: Kenneth Stokoe, Stephen Wright · The performance of earth retaining walls and embankments is predominantly controlled by the engineering properties of the backfill. To ensure that the backfill has adequate properties, the soil is compacted to achieve a specified minimum dry unit weight and a water
4835 Summary [CTR] ... PSR 0-4835-S ... Project Summary Report, 0-4835
Full-text Link:
https://library.ctr.utexas.edu/hostedpdfs/txdot/psr/4835.pdf
______________________________________________________________________________________________________
Analysis of Hamburg Wheel Tracking Device Results in Relation to Field Performance : A Summary
17.
2006 ... Yetkin Yildirim and Kenneth H. Stokoe II · To evaluate the laboratory-field correlation for the Hamburg Wheel Tracking Device (HWTD), nine test sections were constructed on IH-20 in Harrison County. This research included a monitoring of the construction of the test sections; the collection of construction data, performance data
4185 Summary [CTR] ... PSR 0-4185-S ... Project Summary Report, 0-4185
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/0_4185_S.pdf
______________________________________________________________________________________________________
Analysis of Hamburg Wheel Tracking Device Results in Relation to Field Performance
18.
2006 ... Yetkin Yildirim, Kenneth H. Stokoe II · This project was conducted to determine the correlation of field performance to Hamburg Wheel Tracking Device (HWTD) testing results. The HWTD measures the combined effects of rutting and moisture damage by rolling a steel wheel across the surface of an asphalt concrete specimen that is
4185-5 [CTR] ... FHWA/TX-06/0-4185-5; [Product 0-4185-P1]; [Product 0-4185-P2]
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/0_4185_5.pdf
______________________________________________________________________________________________________
Pavement Performance Evaluation By Using Field Data
19.
2006 ... Yetkin Yildirim [and three others] · This project was conducted to determine the correlation of field performance to Hamburg Wheel Tracking Device (HWTD) testing results. The HWTD measures the combined effects of rutting and moisture damage by rolling a steel wheel across the surface of an asphalt concrete specimen that is
4185-4 [CTR] ... FHWA/TX-06/0-4185-4
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/0_4185_4.pdf
______________________________________________________________________________________________________
Performance Assessment by Using Nondestructive Testing
20.
2006 ... Yetkin Yildirim [and four others] · This project was conducted to determine the correlation of field performance to Hamburg Wheel Tracking Device (HWTD) testing results. HWTD measures the combined effects of rutting and moisture damage by rolling a steel wheel across the surface of an asphalt concrete specimen that is
4185-3 [CTR] ... 0-4185-3
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/0_4185_3.pdf
______________________________________________________________________________________________________
Improved Testing Speed of the Rolling Dynamic Deflectometer
21.
2006 ... Jeffrey L. Lee, Kenneth H. Stokoe II · The Rolling Dynamic Deflectometer (RDD) was developed by the researchers at The University of Texas at Austin in the late 1990s. It has been used in many project-level pavement studies in Texas. The current testing speed of the RDD is limited to 1 mph (1.6 km/hr) using first-generation rolling
4357-1 [CTR] ... FHWA/TX-06/0-4357-1
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/0_4357_1.pdf
______________________________________________________________________________________________________
Improved Testing Speed of the Rolling Dynamic Deflectometer : A Summary
22.
2005 ... Jeffrey L. Lee and Kenneth H. Stokoe · The Rolling Dynamic Deflectometer (RDD) is a nondestructive deflection testing device developed by researchers at The University of Texas at Austin in the 1990s. The developmental work was funded by Texas Department of Transportation (TxDOT) Research Project No. 0-1422.
4357 Summary [CTR] ... PSR 0-4357-S ... Project Summary Report, 0-4357
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/0_4357_S.pdf
______________________________________________________________________________________________________
Pavement Management; Monitoring, Evaluation, and Data Storage; and Accelerated Testing 2005
23.
2005 ... [various authors] · · CONTENTS: Life-Cycle Cost Analysis, and Performance-Based Specification Pay Factors--L. Whiteley, S. Tighe, and Z. Zhang -- Analysis of Long-Term Effectiveness of Thin Hot-Mix Asphaltic Concrete Overlay Treatments--S. Labi, G. Lamptey, S. Konduri, K. C. Sinha; Incorporating Variability into
TRR 1940 ... TRR 1940 ... Transportation Research Record (TRR), 1940
Full-text Link:
Ask librarian for assistance.
______________________________________________________________________________________________________
Pavement Rehabilitation, Strength and Deformation Characteristics, and Surface Properties 2005
24.
2005 ... [various authors] · · CONTENTS: Monitoring Pavement Changes in a Rehabilitation Project with Coninuous Rolling Dynamic Deflectometer Profiles--Lee, Jeffrey L. Y.; Stokoe, Kenneth H.; Chen, Dar-Hao; Garrison, Miles R.; Nam, Boo Hyun. Implementation of Cold In-Place Recycling with Expanded Asphalt Technology
TRR 1905 ... TRR 1905 ... Transportation Research Record (TRR), 1905
Full-text Link:
Ask librarian for assistance.
______________________________________________________________________________________________________
Pavement Rehabilitation, Strength and Deformation Characteristics, and Surface Properties 2004
25.
2004 ... [various authors] · · CONTENTS: Long-Term Performance of Broken and Seated Pavements / Rajagopal, Arudi; Minkarah, Issam; Green, Roger; Morse, Aric. Evaluating Potential for Reflection Cracking with Rolling Dynamic Deflectometer / Lee, Jeffrey L.Y.; Chen, Dar-Hao; Stokoe, Kennth H.; Scullion, Thomas. A Strong
TRR 1869 ... TRR 1869 ... Transportation Research Record (TRR), 1869
Full-text Link:
Ask librarian for assistance.
______________________________________________________________________________________________________
Pavement Assessment, Monitoring, and Evaluation 2003
26.
2003 ... [various authors] · · CONTENTS: Viscoelastic, Viscoplastic, and Damage Modeling of Asphalt Concrete in Unconfined Compression / Gibson, Nelson H.; Schwartz, Charles W.; Schapery, Richard A.; Witczak, Matthew W. -- Feasibility of Backcalculation of Nonlinear Flexible Pavement Layer Parameters from Nondestructive Testing /
TRR 1860 ... TRR 1860 ... Transportation Research Record (TRR), 1860
Full-text Link:
Ask librarian for assistance.
______________________________________________________________________________________________________
Geomaterials 2003 : Soils, Geology, and Foundations
27.
2003 ... [various authors] · · CONTENTS: Measuring Sulfate in Subgrade Soil: Difficulties and Triumphs / Harris, Pat; Scullion, Tom; Sebesta, Stephen; Claros, German -- Stabilization of Sulfate-Containing Soil by Cementitious Mixtures Mechanical Properties / Wang, Lan; Roy, Amitava; Seals, Roger K.; Metcalf, John B. --
TRR 1837 ... TRR 1837 ... Transportation Research Record (TRR), 1837
Full-text Link:
Ask librarian for assistance.
______________________________________________________________________________________________________
Pavement Assessment and Testing
28.
2000 ... [various authors] · The [17] papers contained in this volume were among those presented at the 79th Annual Meeting of the Transportation Research Board in January 2000. · CONTENTS: Includes: "Evaluating Runway Pavement at Seattle-Tacoma International Airport..." / J.A. Bay, K.H. Stokoe II, et al. -- "Temperature
TRR 1716 ... TRR 1716 ... Transportation Research Record (TRR), 1716
Full-text Link:
Ask librarian for assistance.
______________________________________________________________________________________________________
Geomaterials : Soils, Geology, and Foundations
29.
1999 ... [various authors] · · CONTENTS: Relating In Situ Properties of Cement-Bound Bases to Their Performance / N. H. Thom and L. W. Cheung; -- Performance and Failure Modes of Louisiana Asphalt Pavements with Soil-Cement Bases Under Full-Scale Accelerated Loading / Y. Li, J. B. Metcalf, S. A. Romanoschi, and M.
TRR 1673 ... TRR 1673 ... Transportation Research Record (TRR), 1673
Full-text Link:
Ask librarian for assistance.
______________________________________________________________________________________________________
Increased Single-Lift Thicknesses for Unbound Aggregate Base Courses
30.
1998 ... by John J. Allen [and four others] · A study was conducted to evaluate the feasibility of compacting unbound aggregate base courses in thicker lifts than currently permitted by state departments of transportation (DOTs). At present, the majority of states allow a maximum lift thickness of 8 inches or less. This project
ICAR 501-5 ... ICAR 501-5
Full-text Link:
https://repositories.lib.utexas.edu/handle/2152/35415
Web page with download option(s)
______________________________________________________________________________________________________
Prediction of Working Load Displacements Under Plate Loading Tests from Seismic Stiffness Measurements
31.
1998 ... by Michael L. Myers, Kenneth H. Stokoe, II and John J. Allen · A study was conducted to evaluate the feasibility of compacting unbound base courses in thicker lifts than currently permitted by state departments of transportation (DOTs). At present, the majority of states allow a maximum lift thickness of 8 inches or less. This
ICAR 501-3 ... ICAR 501-3
Full-text Link:
https://repositories.lib.utexas.edu/handle/2152/35411
Web page with download option(s)
______________________________________________________________________________________________________
A Study on the Feasibility of Compacting Unbound Graded Aggregate Base Courses in Thicker Lifts Than Presently Allowed by State Departments of Transportation
32.
1998 ... by Jaime L. Bueno, Kenneth H. Stokoe, II, and John J. Allen · A study was conducted to evaluate the feasibility of compacting unbound aggregates base courses in thicker lifts than currently permitted by state departments of transportation (DOTs). At present, the majority of states allow a maximum lift thickness of 8 inches
ICAR 501-2 ... ICAR 501-2
Full-text Link:
https://repositories.lib.utexas.edu/handle/2152/35398
Web page with download option(s)
______________________________________________________________________________________________________
Recent Pavement Research Issues
33.
1998 ... [various authors] · · CONTENTS: In Situ Evaluation of Layer Stiffness of Airport Pavements by Crosshole Seismic Tests / Ngar-kok James Lee, Kenneth H. Stokoe II, Michael T. McNerney, and B. Frank McCullough -- Continuous Profiling of Runway and Taxiway Pavements with Rolling Dynamic Deflectometer at
TRR 1639 ... TRR 1639 ... Transportation Research Record (TRR), 1639
Full-text Link:
Ask librarian for assistance.
______________________________________________________________________________________________________
Development of a Rolling Dynamic Deflectometer for Continuous Deflection Testing of Pavements
34.
1998 ... by James A. Bay and Kenneth H. Stokoe II · A Rolling Dynamic Deflectometer (RDD) was developed as a nondestructive method for determining continuous deflection profiles of pavements. Unlike other commonly used pavement testing methods, the RDD performs continuous rather than discrete measurements. The ability to
1422-3 F [CTR] ... FHWA/TX-99/1422-3F; 0-1422-3F ... Project Summary Report & Geotechnical Engineering
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/1422_3F.pdf
2.1 MB
______________________________________________________________________________________________________
APT Symposium, February 1997 : The First Review and Discussion of Accelerated Pavement Testing Findings in Texas
35.
1997 ... Presiding: Ken Fults · Summary proceedings and printouts of presentation slides from the symposium. · CONTENTS: APT Symposium Agenda -- APT Symposium Meeting Minutes -- APT Symposium Slide Presentations -- Overview of MLS and MMLS Tests / Fred Hugo -- Detection and Monitoring of Cracks in Asphalt Pavement Under
APT Symposium 1997
Full-text Link:
online resource not yet available
______________________________________________________________________________________________________
Aggregates, Asphalt Concrete, Bases, and Fines : 5th Annual Symposium Proceedings
36.
1997 ... ICAR Symposium · · CONTENTS: Solving the Fines Problem/C. A. Machemehl, Jr. -- Utilization of Fines in Concrete/R. R. Collins -- Increasing Amount of Minus 200 Fines in Portland Cement Concrete/J. C. Fowler -- How to Avoid Excessive Expansion of Concrete Due to Alkali-Aggregate Reaction/B. Mather -- Thermogravimetric
ICAR Symposium 1997
Full-text Link:
No online resource supplied by publisher
______________________________________________________________________________________________________
Pavement Research Issues
37.
1997 ... [various authors] · · CONTENTS: Linear Tracking Response Measurements: Determining Effects of Wheel-Load Configurations - J. Groenendijk, C. H. Vogelzang, A. A. A. Molenaar, B. R. Mante and L. J. M. Dohmen -- Detection and Monitoring of Cracks in Asphalt Pavement Under Texas Mobile Load Simulator Testing - N.-K. J. Lee,
TRR 1570 ... TRR 1570 ... Transportation Research Record (TRR), 1570
Full-text Link:
Ask librarian for assistance.
______________________________________________________________________________________________________
Analysis of Remaining Life for Runway 17R-35L, and Taxiway L at Dallas/Fort Worth International Airport. Volume 1
38.
1997 ... Michael T. McNerney [and five others] · · Publ. by: University of Texas at Austin. Aviation Research Center (ARC).
ARC-702 v.1
Full-text Link:
No online resource supplied by publisher
______________________________________________________________________________________________________
Analysis of Remaining Life for Runway 17R-35L, and Taxiway L at Dallas/Fort Worth International Airport. Volume 2
39.
1997 ... Michael T. McNerney [and five others] · · Publ. by: University of Texas at Austin. Aviation Research Center (ARC).
ARC-702 v.2
Full-text Link:
No online resource supplied by publisher
______________________________________________________________________________________________________
Analysis of Remaining Life for Runway 17R-35L, and Taxiway L at Dallas/Fort Worth International Airport. Volume 3
40.
1997 ... Michael T. McNerney [and five others] · · Publ. by: University of Texas at Austin. Aviation Research Center (ARC).
ARC-702 v.3
Full-text Link:
No online resource supplied by publisher
______________________________________________________________________________________________________
Aggregates, Asphalt Concrete, Bases, and Fines : 3rd Annual Symposium Proceedings
41.
1995 ... ICAR Symposium · · CONTENTS: Different Aggregates for Different Concretes/Bryant Mather -- The Unbound Aggregate Pavement Base/A. R. Dawson -- Mineral Fines (-200), Today's Opportunity, Tomorrow's Success/R. H. Brown -- Observations from the U.S. Tour of European Concrete Highways (USTECH)/L. W. Cole --
ICAR Symposium 1995
Full-text Link:
No online resource supplied by publisher
______________________________________________________________________________________________________
Evaluation of Stress-Wave Methods for Implementation into a Rolling System to Detect Pavement Irregularites : Final report
42.
1995 ... Brent L. Rosenblad, Kenneth H. Stokoe II and Jose M. Roesset · Experimental testing was performed to study the feasibility of implementing two stress-wave techniques, the impact-echo and impulse-response methods, into a rolling system for "on-the-fly" detection of subsurface flaws in rigid concrete pavements. These studies have
1243-5 F [CTR] ... FHWA/TX-95-1243-5F; CTR 0-1243-5F
Full-text Link:
https://library.ctr.utexas.edu/digitized/texasarchive/phase1/1243-5f.pdf
2.6 MB
______________________________________________________________________________________________________
Development and Preliminary Investigation of a Rolling Dynamic Deflectometer
43.
1995 ... Kenneth H. Stokoe II and James A. Bay · A Rolling Dynamic Deflectometer (RDD) has been developed by making modifications to a bivroseis truck. The RDD can make continuous profiles of pavement flexibility or stiffness can be measured under heavy loads. The RDD employs a servo-hydraulic vibrator to apply static hold-
1243-3 [CTR] ... FHWA/TX-95-1243-3; CTR 0-1243-3
Full-text Link:
https://library.ctr.utexas.edu/digitized/texasarchive/phase1/1243-3.pdf
1.2 MB
______________________________________________________________________________________________________
Preliminary Studies to Develop a Trailer-Mounted System to Delineate Irregularities in Rigid Pavements
44.
1994 ... by Blake E. Cotton, Kenneth H. Stokoe II, J.M. Roesset · This study involved preliminary investigation of the components needed to develop a low-cost, prototype, trailer-mounted system to nondestructively delineate irregularities and flaws in rigid pavements while rolling. The proposed system should be capable of delineating
1243-4 [CTR] ... FHWA/TX-1995/1243-4; CTR 0-1243-4
Full-text Link:
https://library.ctr.utexas.edu/digitized/texasarchive/phase1/1243-4.pdf
2.6 MB
______________________________________________________________________________________________________
Effects of Irregularities on the Dynamic Response of Pavements in Non-Destructive Testing
45.
1994 ... by Chine Chung Chiang, Jose M. Roesset, and Kenneth H. Stokoe, II · A computer program using finite elements was developed to simulate the response of pavements with horizontal delaminations, voids of different sizes and vertical cracks, to dynamic loads applied at the surface. The solution of the finite element model is carried
1243-2 [CTR] ... FHWA/TX-1995/1243-2; CTR 0-1243-2
Full-text Link:
https://library.ctr.utexas.edu/digitized/texasarchive/phase1/1243-2.pdf
3.7 MB
______________________________________________________________________________________________________
Effect of Depth to Bedrock on the Accuracy of Backcalculated Moduli Obtained with Dynaflect and FWD Tests
46.
1993 ... Chia-Ray Seng, Kenneth H. Stokoe and Jose M. Roesset · The main objective of this study is to investigate the importance of depth to bedrock in surface loading tests. Two surface loading tests, the Dynaflect and Falling Weight Deflectometer (FWD), were investigated analytically using four typical in-service Texas highway
1175-5 [CTR] ... FHWA/TX-93+1175-5
Full-text Link:
https://library.ctr.utexas.edu/digitized/texasarchive/phase2/1175-5.pdf
3.9 MB
______________________________________________________________________________________________________
FWD-DYN : A Computer Program for Forward Analysis and Inversion of Falling Weight Deflection Data
47.
1993 ... by Rafael Foinquinos, José M. Roesset, Kenneth H. Stokoe · A computer program FWD-DYN has been developed to perform forward analyses simulating the Falling Weight Deflectometer test, and to perform inversion of actual field data to estimate the Young's moduli of the surface layer, the base, and the subgrade of a pavement
1970-1 F [CTR] ... TX-94-1970-1F; CTR 7-1970-1F
Full-text Link:
https://library.ctr.utexas.edu/digitized/texasarchive/phase2/1970-1f.pdf
1.2 MB
______________________________________________________________________________________________________
Evaluation of Flexible Pavements and Subgrades Using the Spectral-Analysis-of-Surface-Waves (SASW) Method
48.
1993 ... by Marwan F. Aouad, Kenneth H. Stokoe II and Jose M. Roesset · In this research study, Spectral-Analysis-of-Surface Waves (SASW), Falling Weight Deflectometer (FWD), and compression wave (P-wave) tests were employed at flexible pavement sites at the Texas Transportation Institute's (Texas A&M University) test facility
1175-7 F [CTR] ... FHWA/TX-95+1175-7F; CTR 2/3-18-88/1-1175-7F
Full-text Link:
https://library.ctr.utexas.edu/digitized/texasarchive/phase2/1175-7f.pdf
3.4 MB
______________________________________________________________________________________________________
Deformational Characteristics of Soils at Small to Intermediate Strains for Cyclic Tests
49.
1992 ... Dong-Soo Kim, Kenneth H. Stokoe, and W. Ronald Hudson · The effects of loading frequency and number of loading cycles on deformational characteristics (modulus and damping) are investigated. Resonant column (RC) and torsional shear (TS) tests were performed in a sequential series on the same specimen. A cyclic
1177-3 [CTR] ... FHWA/TX-92+1177-3; CTR 2/3-10-8-88/0-1177-3
Full-text Link:
https://library.ctr.utexas.edu/digitized/texasarchive/phase1/1177-3-ctr.pdf
6.5 MB
______________________________________________________________________________________________________
Development of a Reliable Resilient Modulus Test for Subgrade and Non-Granular Subbase Materials for Use in Routine Pavement Design
50.
1992 ... by Rafael F. Pezo [and three others] · Many research engineers over the years have reported various problems with the resilient modulus test for soils. Some of these problems are associated with the testing setup, some with the testing procedure. In particular, researchers have observed significant differences in the estimations
1177-4 F [CTR] ... FHWA/TX-92+1177-4F; CTR 2/3-10-8-88/0-1177-4F
Full-text Link:
https://library.ctr.utexas.edu/digitized/texasarchive/phase1/1177-4f-ctr.pdf
7.7 MB
______________________________________________________________________________________________________
The Falling Weight Deflectometer and Spectral Analysis of Surface Waves Test for Characterizing Pavement Moduli : A Case Study
51.
1991 ... Kenneth H. Stokoe, W. Ronald Hudson, and B.F. minor · This report details the results of tests on newly constructed flexible pavement using a Dynatest 9000 Falling Weight Deflectometer and the Spectral Analysis of Surface Waves test. Additional types of field and laboratory tests were also undertaken and are reported in this
1123-7 F [CTR] ... Report 0-1123-7F
Full-text Link:
https://library.ctr.utexas.edu/digitized/texasarchive/phase2/1123-7f.pdf
1.2 MB
______________________________________________________________________________________________________
Experimental Study of Factors Affecting the Sepctral-Analysis-of-Surface-Waves Method
52.
1991 ... by Glenn J. Rix, Kenneth H. Stokoe II, Jose M. Roesset · Three series of seismic tests were performed to investigate factors which affect the Spectral-Analysis-of-Surface-Waves (SASW) test method. In the first series, the source of seismic waves was studied. Until recently, transient input motion has been used almost exclusively as
1123-5 [CTR] ... FHWA/TX-91+1123-5; CTR 2/3-87/9-1123-5
Full-text Link:
https://library.ctr.utexas.edu/digitized/texasarchive/phase2/1123-5.pdf
7.7 MB
______________________________________________________________________________________________________
Effect of Finite Width on Dynamic Deflections of Pavements
53.
1991 ... by Yumin Vincent Kang, Jose M. Roesset, and Kenneth H. Stokoe II · A highway has a finite width in its transverse direction, and the existence of variation in material properties between the road and the surrounding soil is not uncommon. A three-dimensional elastodynamic solution is presented to take into account the variation of
1123-6 [CTR] ... FHWA/TX-91+1123-6; CTR 2/3-18-87/0-1123-6; 0-1123-6
Full-text Link:
https://library.ctr.utexas.edu/digitized/texasarchive/phase1/1123-6-TxDOT.pdf
4.1 MB
______________________________________________________________________________________________________
Applications and Limitations of the Spectral-Analysis-of-Surface-Waves Method
54.
1986 ... Jiun-Chyuan Sheu [and three others] · The Spectral-Analysis-of-Surface-Waves (SASW) method is an in situ seismic method for nondestructively determining the modulus profiles of geotechnical, pavement, and structural systems. This method requires no boreholes and is performed entirely from the surface of the system being tested.
437-3 F [CTR] ... FHWA/TX-87/70+437-3F; CTR 3-8-85-437; Report 0-437-3F
Full-text Link:
https://library.ctr.utexas.edu/digitized/texasarchive/phase2/437-3f.pdf
3.6 MB
______________________________________________________________________________________________________
Instrumented Rigid Pavement for Multipurpose Research
55.
1986 ... A.H. Meyer, W. R. Hudson, C.L. Saraf, K.H. Stokoe, II · This report summarizes the design, construction, and use of an instrumented portland cement concrete pavement research facility. Instrumentation includes devices to monitor static deflections, temperature gradient of the slab, and moisture contents of the supporting layers.
355-2 F [CTR] ... FHWA/TX-87/61+355-2F; CTR 3-8-83-355-2F; Report 0-355-2F
Full-text Link:
https://library.ctr.utexas.edu/digitized/texasarchive/phase2/355-2F-CTR.pdf
6.4 MB
______________________________________________________________________________________________________
In Situ Determination of Elastic Moduli of Pavement Systems by Spectral-Analysis-of-Surface-Waves Method : Theoretical Aspects
56.
1986 ... by Soheil Nazarian, K.H. Stokoe II · The Spectral-Analysis-of-Surface-Waves (SASW) method is an in situ testing method for determining shear wave velocity profiles of soil sites and stiffness profiles of pavement systems. The method is nondestructive and is performed entirely from the pavement or ground surface.
437-2 [CTR] ... FHWA/TX-87/46+437-2; CTR 3-8-85-437-2; 0-437-2
Full-text Link:
https://library.ctr.utexas.edu/digitized/texasarchive/phase2/437-2.pdf
1.3 MB
______________________________________________________________________________________________________
Dynamic Interpretation of Dynaflect and Falling Weight Deflectometer Tests on Pavement Systems
57.
1986 ... by Ko-Young Shao, J.M. Roesset, K.H. Stokoe II · The Dynaflect and the Falling Weight Deflectometer are commonly used for nondestructive testing of pavements. Although in both cases a dynamic load is imparted, the determination of the mechanical properties of the pavement is normally performed by using static analyses. In
437-1 [CTR] ... FHWA/TX-87+437-1; CTR 3-8-85-437-1; 0-437-1
Full-text Link:
https://library.ctr.utexas.edu/digitized/texasarchive/phase2/437-1.pdf
676 KB
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The Falling Weight Deflectometer for Nondestructive Evaluation of Rigid Pavements
58.
1985 ... Eduardo A. Ricci, A. H. Meyer, W. R. Hudson, K.H. Stokoe II · This report presents an evaluation of the model 8000 Falling Weight Deflectometer (FWD) manufactured by Dynatest as to variability and repeatability over a nominal range from 1,500 to 24,000 pounds and several rigid pavement structures. For the tests performed in this
387-3 F [CTR] ... FHWA/TX-86/44+387-3F
Full-text Link:
https://library.ctr.utexas.edu/digitized/texasarchive/phase2/387-3F-CTR.pdf
______________________________________________________________________________________________________
A Structural Evaluation Methodology for Pavements Based on Dynamic Deflections
59.
1985 ... Waheed Uddin [and three others] · A framework for structural evaluation of pavements based on dynamic deflections is presented. A self-iterative procedure has been developed to estimate insitu Young's moduli of pavement layers by using the approach of inverse application of layered elastic theory (ELSYM5) to obtain the
387-1 [CTR] ... 0-387-1
Full-text Link:
https://library.ctr.utexas.edu/digitized/texasarchive/phase2/387-1-CTR.pdf
10.7 MB
______________________________________________________________________________________________________
Nondestructive Pavement Evaluation and Overlay Design
60.
1985 ... [various authors] · · CONTENTS: Operating Characteristics and User Satisfaction of Commercially Available NDT Equipment / Roger E. Smith and Robert L. Lytton -- Use of Nondestructive Testing in the Design of Overlays for Flexible Pavements / Robert L. Lytton and Roger E. Smith -- Comparison of Falling Weight
TRR 1007 ... TRR 1007 ... Transportation Research Record (TRR), 1007
Full-text Link:
http://onlinepubs.trb.org/Onlinepubs/trr/1985/1007/1007.pdf
40.3 MB
______________________________________________________________________________________________________
In Situ Determination of Elastic Moduli of Pavement Systems by Spectral-Analysis-of-Surface-Waves Method : Practical Aspects
61.
1985 ... Soheil Nazarian and Kennth H. Stokoe · The Spectral-Analysis-of-Surface-Waves (SASW) method is an in situ testing method for determining shear wave velocity profiles of soil sites and stiffness profiles of pavement systems. The method is non-destructive, is performed from the ground surface, and generally requires no
368-1 F [CTR] ... Report 0-368-1F
Full-text Link:
https://library.ctr.utexas.edu/digitized/texasarchive/phase2/368-1F-CTR.pdf
4.3 MB
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Factors Affecting Pavement Performance
62.
1984 ... [various authors] · · CONTENTS: Effect of Season of Year on Pavement Response / Roy F. Bibbens, Chris A. Bell, and R. Gary Hicks -- Serviceability Loss Due to Roughness Caused by Volume Change in Expansive Clay Subgrades / Brent Rauhut and Robert L. Lytton -- Expansive Pyritic Shales / Dean D. Dubbé, Mumtaz A.
TRR 993 ... TRR 993 ... Transportation Research Record (TRR), 993
Full-text Link:
http://onlinepubs.trb.org/Onlinepubs/trr/1984/993/993.pdf
49.8 MB
______________________________________________________________________________________________________
Integrity Evaluation of Drilled Piers By Stress Waves
63.
1984 ... A. Scot Harrell and Kenneth H. Stokoe · The theory of elastic wave propagation in solid rods is presented in terms of using elastic waves to evaluate the integrity of drilled piers. Equipment and instrumentation as well as experimentally determined advantages and disadvantages of previously established wave propagation methods
257-1 F [CTR] ... FHWA/TX-84/04+257-1F
Full-text Link:
https://library.ctr.utexas.edu/digitized/texasarchive/phase2/257-1F-CTR.pdf
9.5 MB
______________________________________________________________________________________________________
Design and Construction of a Rigid Pavement Research Facility
64.
1984 ... Ron White [and three others] · This report outlines the design, instrumentation and construction of portland cement concrete pavement capable of evaluating nondestructive testing (NDT) equipment such as the Dynaflect and the Falling Weight Deflectometer. To test these devices, several variables that affect their output
355-1 [CTR] ... FHWA/TX-85/16+355-1; CTR 3-8-83-355-1
Full-text Link:
https://library.ctr.utexas.edu/digitized/texasarchive/phase2/355-1-CTR.pdf
3.6 MB
______________________________________________________________________________________________________
Pavement Design, Performance, and Rehabilitation
65.
1983 ... [various authors] · · CONTENTS: Includes "Use of Spectral Analysis of Surface Waves Method for Determination of Moduli and Thicknesses of Pavement Systems" / Soheil Nazarian, Kenneth H. Stokoe II, and W.R. Hudson · "A Peer-Reviewed Publication" · Publ. by: Transportation Research Board (TRB).
TRR 930 ... TRR 930 ... Transportation Research Record (TRR), 930
Full-text Link:
http://onlinepubs.trb.org/Onlinepubs/trr/1983/930/930.pdf
52.4 MB
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Investigations Into Dynaflect Deflections in Relation to Location/Temperature Parameters and InSitu Material Characterization of Rigid Pavements
66.
1983 ... by Waheed Uddin [and four others] · This report presents a statistical analysis of Dynaflect deflection and slab temperature data to investigate different test location variables and temperature parameters that affect Dynaflect deflections measured on rigid pavement. A procedure is developed for making Dynaflect deflection
256-5 [CTR] ... FHWA/TX-83/27+256-5; CTR 3-8-80-256-5
Full-text Link:
https://library.ctr.utexas.edu/digitized/texasarchive/phase2/256-5-CTR.pdf
7.5 MB
______________________________________________________________________________________________________
Evaluation of Moduli and Thicknesses of Pavement Systems by Spectral-Analysis-of-Surface-Waves Method
67.
1983 ... Soheil Nazarian and Kenneth H. Stokoe · The Spectral-Analysis-of-Surface-Waves (SASW) method is a nondestructive method for evaluating the moduli and thicknesses of pavement systems. By means of a transient impact applied to the surface of a pavement system or soil deposit, a group of waves with different frequency
256-4 [CTR] ... FHWA/TX-83/26+256-4
Full-text Link:
https://library.ctr.utexas.edu/digitized/texasarchive/phase2/256-4-CTR.pdf
3.6 MB
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Determination of In Situ Shear Wave Velocities from Spectral Analysis of Surface Waves
68.
1982 ... Scott Heisey [and three others] · A method for determining elastic moduli at soil and pavement sites was proposed and tested. Surface receivers were utilized to evaluate the Rayleigh wave motion created by a vertical, impulsive source that could excite a wide range of frequencies with a single impact. Analysis was facilitated by
256-2 [CTR] ... FHWA/TX-82/34+256-2
Full-text Link:
https://library.ctr.utexas.edu/digitized/texasarchive/phase2/256-2-CTR.pdf
6.7 MB
______________________________________________________________________________________________________
Comparison of the Falling Weight Deflectometer and the Dynaflect for Pavement Evaluation
69.
1982 ... Bary Eagleson [and four others] · A comparison between the Dynaflect and a Falling Weight Deflectometer was made. Field testing on pavements of (1) continuously reinforced concrete, (2) jointed reinforced concrete, (3) asphalt cement concrete, and (4) continuously reinforced concrete with an asphalt concrete overlay
256-1 [CTR] ... FHWA/TX-82/33+256-1
Full-text Link:
https://library.ctr.utexas.edu/digitized/texasarchive/phase2/256-1-CTR.pdf
5.1 MB
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Determination of In Situ Shear Wave Velocities From Spectral Analysis of Surface Waves : Summary of Research Report 256-2
70.
1982 ... J. Scott Heisey [and three others] · Pavement life is usually defined as the length of service of the pavement system before maintenance or rehabilitation is required. Estimates of remaining life as well as appropriate remedial measures are based on elastic moduli of the various pavement materials. Young's elastic
256-2 Summary [CTR] ... 3-8-80-256-2 S; 0-256-2S ... Summary Report (Center for Transportation
Full-text Link:
https://library.ctr.utexas.edu/digitized/texasarchive/phase2/256-2-summary-CTR.pdf
251 KB
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Comparison of the Falling Weight Deflectometer and the Dynaflect for Pavement Evaluation : Summary of Research Report 256-1
71.
1982 ... Bary Eagleson [and four others] · Research Report 256-1 is the first report describing work done on project 3-8-80-256, "The Study of New Technologies for Pavement Evaluation." It presents the results of an analytical study undertaken to determine the best model for pavement evaluation using the criteria of cost,
256-1 summary [CTR] ... PSR 0-256-1(S) ... Summary Report (Center for Transportation Research), 256-1
Full-text Link:
https://library.ctr.utexas.edu/digitized/texasarchive/phase2/256-1-summary-CTR.pdf
207 KB
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