Journal
NONDESTRUCTIVE TESTING AND EVALUATION
Volume 23, Issue 2, Pages 121-140Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/10589750701848697
Keywords
deflection; layer moduli; thickness estimation; backcalculation; spectral analysis
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Nondestructive testing provides ideal means to test pavement structure in a rapid and convenient manner. In last few years, significant development has taken place in this field. This paper, presents some of the major conventional as well as emerging nondestructive evaluation methods for in situ structural assessment of asphalt pavements. Discussion of methods is primarily directed towards the estimation of layer moduli and thickness values which are direct indicators of the structural strength of pavement. Estimation of density, moisture content, etc. has not been emphasised in this paper.
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