Nondestructive Testing of Pavements and Backcalculation of Moduli

Nondestructive Testing of Pavements and Backcalculation of Moduli
Author: ASTM Committee D-18 on Soil and Rock. Subcommittee D-4 on Road and Paving Materials
Publisher: ASTM International
Total Pages: 528
Release: 1994
Genre: Fatigue
ISBN: 0803118651
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The proceedings of June 1993 international symposium held in Atlanta, Georgia, called specifically to develop and standardized evaluation procedures for non-destructive methods of testing pavements. The 29 papers discuss analytical models and techniques, measurement and calculation techniques in the field and laboratory, problems and errors associated with backcalculation methods and design parameters, and testing for other pavement uses. Also includes a history of the quest for a standard and the status of that effort. Reproduced from typescripts. Annotation copyright by Book News, Inc., Portland, OR

Elevated Temperature Dynamic Elastic Moduli of Various Metallic Materials

Elevated Temperature Dynamic Elastic Moduli of Various Metallic Materials
Author: W. H. Hill
Publisher:
Total Pages: 88
Release: 1961
Genre: Elasticity
ISBN:
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The dynamic elastic moduli of 40 metals and ALLOYS OF ENGINEERING INTEREST HAVE BEEN DETERMINED AT ROOM AND ELEVATED TEMPERATURES. Modulus determinations were based upon a relation between the speed of sound in a material and its elastic modulus. A specimen of the material was excited electrostatically and its resonant frequency determined. Knowing the geometry of the specimen, the dynamic elastic modulus was calculated. Room temperature comparisons of dynamic with static moduli were made in most instances using material from the same bar. The results of dynamic elastic modulus determinations are graphically presented.

Resilient Modulus Testing for Pavement Components

Resilient Modulus Testing for Pavement Components
Author: Mary Stroup-Gardiner
Publisher: ASTM International
Total Pages: 274
Release: 2003
Genre: Pavements
ISBN: 0803134614
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"Resilient modulus indicates the stiffness of a soil under controlled confinement conditions and repeated loading. The test is intended to simulate the stress conditions that occur in the base and subgrade of a pavement system. Resilient modulus has been adopted by the U.S. federal highway administration as the primary performance parameter for pavement design. We thank those who prepared these papers, the reviewers who provided anonymous peer reviews, and those who participated in the symposium. We hope this STP encourages more work to improve the testing standard and the value of the Resilient Modulus test."