New Condition Assessment Procedure for Asphalt Pavement Layers,Using Falling Weight Deflectometer Deflections

Abstract

Nondestructive condition assessment criteria were developed for application in conjunction with the condition evaluation indicators that are estimated based on falling weight deflectometer (FWD) deflections. Data obtained from state departments of transportation and DATAPAVE 2.0 were used in developing these criteria. To account for the effects of pavement structure and temperature on FWD deflection analysis, structure and temperature correction procedures based on synthetic databases were applied. Also, a deflection prescreening procedure was established to identify and correct any irregular deflection basins potentially arising from measurement errors. All the calibrated predictive procedures, structure and temperature correction procedures, and prescreening algorithms were incorporated into the user-friendly deflection analysis program with graphical interface, Asphalt Pavement Layer Condition Assessment Program, or APLCAP.

Get full access to this article

View all access options for this article.

References

Kim

Y. R.

, Ranjithan

S. R.

, Troxler

J. D.

, and Xu

. NCHRP Research Results Digest 254: Assessing Pavement Layer Condition Using Deflection Data. TRB, National Research Council, Washington, D.C., 2000.

McCullough

B. F.

, and Taute

. Use of Deflection Measurements for Determining Pavement Material Properties. In Transportation Research Record 852, TRB, National Research Council, Washington, D.C., 1982, pp. 8–14.

Rohde

G. T.

, and Smith

R. E.

. Determining Depth to Apparent Stiff Layer from FWD Data. Research Report 1159-1. Texas Transportation Institute, Texas A&M University, College Station, 1991.

Sebaaly

B. E.

, Mamlouk

M. S.

, and Davies

T. G.

. Dynamic Analysis of Falling Weight Deflectometer Data. In Transportation Research Record 1070, TRB, National Research Council, Washington, D.C., 1986, pp. 63–68.

Hoffman

M. S.

, and Thompson

M. R.

. Backcalculating Nonlinear Resilient Moduli from Deflection Data. In Transportation Research Record 852, TRB, National Research Council, Washington, D.C., 1982, pp. 42–51.

Thompson

M. R

, and Garg

. Mechanistic-Empirical Evaluation of the Mn/ROAD Low Volume Road Test Sections. Project IHR-535. University of Illinois, Urbana-Champaign, 1997.

Stubstad

R. N.

, Irwin

L. H.

, Lukanen

E. O.

, and Clevenson

M. L.

. It’s 10 o’clock—Do You Know Where Your Sensors Are? In Transportation Research Record: Journal of the Transportation Research Board, No. 1716, TRB, National Research Council, Washington, D.C., 2000, pp. 10–19.

Johnson

A. M.

, and Baus

R. L.

. Simplified Direct Calculation of Subgrade Modulus from Nondestructive Pavement Deflection Testing. In Transportation Research Record 1406, TRB, National Research Council, Washington, D.C., 1993, pp. 133–141.

Lukanen

E. C.

, Stubstad

, and Briggs

. Temperature Predictions and Adjustment Factors for Asphalt Pavement. Report FHWA-RD-98-085. FHWA, U.S. Department of Transportation, 2000.

10.

Gabr

M. A.

, Hopkins

, Coonse

, and Hearne

. Dynamic Cone Penetrometer Criteria for Evaluation of Aggregate Base Courses. Journal of Performance of Constructed Facilities, ASCE, Vol. 14, No. 4 (November), 2000, pp. 141–148.