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Conference/Workshop Presentation Materials

1.

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:
http://library.ctr.utexas.edu/ctr-publications/5-6005-01-P4.pdf
3.3 MB
______________________________________________________________________________________________________

Data Collected on TPAD Implementation Projects

2.

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:
http://library.ctr.utexas.edu/ctr-publications/5-6005-01-P3.pdf
5.5 MB
______________________________________________________________________________________________________

Software and Manual for Recording and Analyzing RDD Rolling Sensors

3.

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

4.

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:
http://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

5.

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 PSR [CTR] ... 0-6005-S ... Project Summary Report

Full-text Link:
http://library.ctr.utexas.edu/hostedpdfs/txdot/psr/0-6005-s.pdf
349 KB
______________________________________________________________________________________________________

User's Manuals for Manufacturers' Components Integrated into the TPAD

6.

[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:
http://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

7.

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://www.utexas.edu/research/ctr/pdf_reports/0_6005_4.pdf
8.2 MB
______________________________________________________________________________________________________

Developing a Testing Device for Total Pavements Acceptance

8.

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://www.utexas.edu/research/ctr/pdf_reports/0_6005_2.pdf
7 MB
______________________________________________________________________________________________________

Progress during the First Year Towards Building the Total Pavement Acceptance Device (TPAD) -- revised August 2010

9.

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://www.utexas.edu/research/ctr/pdf_reports/0_6005_1.pdf
2.8 MB
______________________________________________________________________________________________________

Quantify the Benefits of Using Geosynthetics for Unbound Base Courses

10.

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-s [CTR] ... PSR 0-4829 ... Project Summary Report, 0-4829

Full-text Link:
http://ftp.dot.state.tx.us/pub/txdot-info/rti/psr/4829.pdf

______________________________________________________________________________________________________

Evaluation of Non-Nuclear Methods for Compaction Control

11.

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://www.utexas.edu/research/ctr/pdf_reports/0_4835_1.pdf
3.4 MB
______________________________________________________________________________________________________

Assessment of Rapid Methods for Density Control of MSE Walls and Embankments

12.

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-S [CTR] ... PSR 0-4835-S ... Project Summary Report, 0-4835

Full-text Link:
http://ftp.dot.state.tx.us/pub/txdot-info/rti/psr/4835.pdf

______________________________________________________________________________________________________

Analysis of Hamburg Wheel Tracking Device Results in Relation to Field Performance : A Summary

13.

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-S [CTR] ... PSR 0-4185-S ... Project Summary Report, 0-4185

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_4185_S.pdf

______________________________________________________________________________________________________

Analysis of Hamburg Wheel Tracking Device Results in Relation to Field Performance

14.

2006 ... Yetkin Yildirim and 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

4185-5 [CTR] ... 0-4185-5

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_4185_5.pdf

______________________________________________________________________________________________________

Pavement Performance Evaluation By Using Field Data

15.

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] ... 0-4185-4

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_4185_4.pdf

______________________________________________________________________________________________________

Performance Assessment by Using Nondestructive Testing

16.

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://www.utexas.edu/research/ctr/pdf_reports/0_4185_3.pdf

______________________________________________________________________________________________________

Improved Testing Speed of the Rolling Dynamic Deflectometer

17.

2006 ... Jeffrey L. Lee and Kenneth H. Stokoe 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] ... 0-4357-1

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_4357_1.pdf

______________________________________________________________________________________________________

Pavement Rehabilitation, Strength and Deformation Characteristics, and Surface Properties 2005

18.

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.
______________________________________________________________________________________________________

Improved Testing Speed of the Rolling Dynamic Deflectometer : A Summary

19.

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-S [CTR] ... PSR 0-4357-S ... Project Summary Report, 0-4357

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_4357_S.pdf

______________________________________________________________________________________________________

Pavement Management; Monitoring, Evaluation, and Data Storage; and Accelerated Testing 2005

20.

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 2004

21.

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:
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______________________________________________________________________________________________________

Pavement Assessment, Monitoring, and Evaluation 2003

22.

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:
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______________________________________________________________________________________________________

Geomaterials 2003 : Soils, Geology, and Foundations

23.

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:
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______________________________________________________________________________________________________

Pavement Assessment and Testing

24.

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 Internation Airport..." / J.A. Bay, K.H. Stokoe II, et al. -- "Temperature

TRR 1716 ... TRR 1716 ... Transportation Research Record (TRR), 1716

Full-text Link:
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______________________________________________________________________________________________________

Geomaterials : Soils, Geology, and Foundations

25.

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.
______________________________________________________________________________________________________

Development of a Rolling Dynamic Deflectometer for Continuous Deflection Testing of Pavements

26.

1998 ... James A. Bay and Kenneth H. Stokoe 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 [CTR] ... 0-1422-3F

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/1422_3F.pdf
2.1 MB
______________________________________________________________________________________________________

Recent Pavement Research Issues

27.

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.
______________________________________________________________________________________________________

Pavement Research Issues

28.

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

29.

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

30.

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

31.

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
______________________________________________________________________________________________________

Evaluation of Stress-Wave Methods for Implementation into a Rolling System to Detect Pavement Irregularites : Final report

32.

1995 ... Brent L. Rosenblad, Kenneth H. Stokoe II and J.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

Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase1/1243-5f.pdf
2.6 MB
______________________________________________________________________________________________________

Development and Preliminary Investigation of a Rolling Dynamic Deflectometer

33.

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

Full-text Link:
http://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

34.

1994 ... Blake E. Cotton, Kenneth H. Stokoe and Jose 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

Full-text Link:
http://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

35.

1994 ... Chine C. 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

Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase1/1243-2.pdf
3.7 MB
______________________________________________________________________________________________________

Evaluation of Flexible Pavements and Subgrades Using the Spectral-Analysis-of-Surface-Waves (SASW) Method

36.

1993 ... Marwan F. Aouad, Kenneth H. Stokoe 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 in Bryan,

1175-7 F [CTR] ... FHWA/TX-95+1175-7F

Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/1175-7f.pdf
3.36 MB
______________________________________________________________________________________________________

Effect of Depth to Bedrock on the Accuracy of Backcalculated Moduli Obtained with Dynaflect and FWD Tests

37.

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:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/1175-5.pdf
3.93 MB
______________________________________________________________________________________________________

FWD-DYN : A Computer Program for Forward Analysis and Inversion of Falling Weight Deflection Data

38.

1993 ... Rafael Foinquinos, Jose M. Roesset and Kenneth H. Stokoe, II 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

Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/1970-1f.pdf
1.20 MB
______________________________________________________________________________________________________

Deformational Characteristics of Soils at Small to Intermediate Strains for Cyclic Tests

39.

1992 ... Dong-Soo Kim and Kenneth H. Stokoe 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 threshold strain was defined

1177-3 [CTR] ... FHWA/TX-92+1177-3

Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase1/1177-3-ctr.pdf
6.5 MB
______________________________________________________________________________________________________

Experimental Study of Factors Affecting the Sepctral-Analysis-of-Surface-Waves Method

40.

1991 ... Glen J. Rix, Kenneth H. Stokoe, and 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

Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/1123-5.pdf
7.70 MB
______________________________________________________________________________________________________

Effect of Finite Width on Dynamic Deflections of Pavements

41.

1991 ... Yumin Vincent Kang, Jose M. Roesset, and Kenneth H. Stokoe 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] ... 0-1123-6

Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase1/1123-6-TxDOT.pdf
4.06 MB
______________________________________________________________________________________________________

The Falling Weight Deflectometer and Spectral Analysis of Surface Waves Test for Characterizing Pavement Moduli : A Case Study

42.

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:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/1123-7f.pdf
1.18 MB
______________________________________________________________________________________________________

In Situ Determination of Elastic Moduli of Pavement Systems by Spectral-Analysis-of-Surface-Waves Method : Theoretical Aspects

43.

1986 ... Soheil Nazarian and Kenneth 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 nondestructive and is performed entirely from the pavement or ground surface.

437-2 [CTR] ... FHWA/TX-87/46+437-2; 0-437-2

Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/437-2.pdf
1.34 MB
______________________________________________________________________________________________________

Dynamic Interpretation of Dynaflect and Falling Weight Deflectometer Tests on Pavement Systems

44.

1986 ... Ko-Young Shao, Jose M. Roesset, and Kenneth H. Stokoe 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

437-1 [CTR] ... 0-437-1

Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/437-1.pdf
676 KB
______________________________________________________________________________________________________

Applications and Limitations of the Spectral-Analysis-of-Surface-Waves Method

45.

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] ... Report 0-437-3F

Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/437-3f.pdf
3.55 MB
______________________________________________________________________________________________________

In Situ Determination of Elastic Moduli of Pavement Systems by Spectral-Analysis-of-Surface-Waves Method : Practical Aspects

46.

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:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/368-1F-CTR.pdf
4.3 MB
______________________________________________________________________________________________________

The Falling Weight Deflectometer for Nondestructive Evaluation of Rigid Pavements

47.

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:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/387-3F-CTR.pdf

______________________________________________________________________________________________________

Design and Construction of a Rigid Pavement Research Facility

48.

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; 3-8-83-355-1

Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/355-1-CTR.pdf
3.6 MB
______________________________________________________________________________________________________

Integrity Evaluation of Drilled Piers By Stress Waves

49.

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:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/257-1F-CTR.pdf
9.5 MB
______________________________________________________________________________________________________

Investigations Into Dynaflect Deflections in Relation to Location/Temperature Parameters and InSitu Material Characterization of Rigid Pavements

50.

1983 ... 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

Full-text Link:
http://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

51.

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:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/256-4-CTR.pdf
3.6 MB
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Comparison of the Falling Weight Deflectometer and the Dynaflect for Pavement Evaluation : Summary of Research Report 256-1

52.

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:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/256-1-summary-CTR.pdf
207 KB
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Determination of In Situ Shear Wave Velocities from Spectral Analysis of Surface Waves

53.

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:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/256-2-CTR.pdf
6.7 MB
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Comparison of the Falling Weight Deflectometer and the Dynaflect for Pavement Evaluation

54.

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:
http://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

55.

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(S) [CTR] ... 3-8-80-256-2S ... Summary Report (Center for Transportation Research), 256-2

Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/256-2-summary-CTR.pdf
251 KB
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