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Nondestructive Vibratory Testing of Airport Pavements. Volume I. Experimental Test Results and Development of Evaluation Methodology and Procedure.

ADA017511

Publication Date	1975
Personal Author	Green, J. L.; Hall, J. W.
Page Count	214
Abstract	Conventional direct sampling methods of airport pavement evaluation interfere with aircraft operations; therefore, an evaluation procedure based on nondestructive vibratory testing was developed. The procedure considers the parameters of pavement thickness and strength, soil strength, landing gear characteristics, and load repetition through correlation of FAA direct sampling procedures with the nondestructive data from termed the dynamic stiffness modulus, which is calculated from a vibratory load-deflection graph. The results indicated the need for standardized vibratory testing equipment, and specifications for a suggested model were written. Evaluation procedures were developed for rigid and flexible pavements which consider the environmental factors of temperature and frost-thaw action, the importance of test locations and quantities, and stabilized layers. Appendix A presents results of two correlations: (a) elastic deflection and pavement performance and (b) dynamic E-modulus and CBR. Appendix B presents the nondestructive testing and performance results on U. S. Army Engineer Waterways Experiment Station test sections and the effects of bound pavement thickness on the nondestructive test results in an attempt to develop overlay design. Appendix C gives procurement specifications for recommended nondestructive test equipment. (Author)
Keywords	Landing fields Pavements Nondestructive testing Airports Vibrators(Machinery) Dynamic loads Deflection Stiffness Test equipment DOT/2A DOT/4CZ/CA
Source Agency	Army Federal Aviation Commission Department of Transportation Non Paid ADAS Department of Transportation Federal Aviation Administration
NTIS Subject Category	85A - Air Transportation 94K - Laboratory & Test Facility Design & Operation
Corporate Authors	Army Engineer Waterways Experiment Station Vicksburg Miss; Federal AViation Administration, Washington, D.C. Systems Research and
Supplemental Notes	See also Volume 2, AD-A013 681.
Document Type	Technical Report
Title Note	Final rept. Oct 72-Nov 73.
NTIS Issue Number	197601
Contract Number	DOT-FA71WAI-218

Nondestructive Vibratory Testing of Airport Pavements. Volume I. Experimental Test Results and Development of Evaluation Methodology and Procedure.

Nondestructive Vibratory Testing of Airport Pavements. Volume I. Experimental Test Results and Development of Evaluation Methodology and Procedure.
ADA017511

Publication Date	1975
Personal Author	Green, J. L.; Hall, J. W.
Page Count	214
Abstract	Conventional direct sampling methods of airport pavement evaluation interfere with aircraft operations; therefore, an evaluation procedure based on nondestructive vibratory testing was developed. The procedure considers the parameters of pavement thickness and strength, soil strength, landing gear characteristics, and load repetition through correlation of FAA direct sampling procedures with the nondestructive data from termed the dynamic stiffness modulus, which is calculated from a vibratory load-deflection graph. The results indicated the need for standardized vibratory testing equipment, and specifications for a suggested model were written. Evaluation procedures were developed for rigid and flexible pavements which consider the environmental factors of temperature and frost-thaw action, the importance of test locations and quantities, and stabilized layers. Appendix A presents results of two correlations: (a) elastic deflection and pavement performance and (b) dynamic E-modulus and CBR. Appendix B presents the nondestructive testing and performance results on U. S. Army Engineer Waterways Experiment Station test sections and the effects of bound pavement thickness on the nondestructive test results in an attempt to develop overlay design. Appendix C gives procurement specifications for recommended nondestructive test equipment. (Author)
Keywords	Landing fields Pavements Nondestructive testing Airports Vibrators(Machinery) Dynamic loads Deflection Stiffness Test equipment DOT/2A DOT/4CZ/CA
Source Agency	Army Federal Aviation Commission Department of Transportation Non Paid ADAS Department of Transportation Federal Aviation Administration
NTIS Subject Category	85A - Air Transportation 94K - Laboratory & Test Facility Design & Operation
Corporate Authors	Army Engineer Waterways Experiment Station Vicksburg Miss; Federal AViation Administration, Washington, D.C. Systems Research and
Supplemental Notes	See also Volume 2, AD-A013 681.
Document Type	Technical Report
Title Note	Final rept. Oct 72-Nov 73.
NTIS Issue Number	197601
Contract Number	DOT-FA71WAI-218