You may not remove or obscure the copyright notice or other notices contained in the ASTMĪSTM grants you a limited, non-transferable license as follows: This is not a sale all right, title and interest in the ASTM Document (in both electronic file You (Licensee) have no ownership or other rights in the ASTM Document. This document is copyrighted by the ASTM International (ASTM), 100īarr Harbor Drive, West Conshohocken, PA 19428-2959 USA.Īll rights reserved. Please click here to view License Agreement for Educational Institutions. If you do not agree to the terms of this License Agreement, promptly exit this page This License Agreement, that you understand it and that you agree to be bound by its IMPORTANT-READ THESE TERMS CAREFULLY BEFORE DOWNLOADING THIS DOCUMENT.īy downloading the ASTM Document you are entering into a contract, and acknowledge that The program has been adapted for use on handheld notebook microcomputers. Modifications have been made for the unique local soils, climate, and traffic patterns. Nondestructive laboratory measurements to determine the material strengths have included: ultrasonic pulse, resonance method, resilient moduli by dynamic compression and triaxial test, and dynamic moduli by indirect tension testing.ĭevelopment efforts have focused on modifying and adapting the ALIZE III elastic-layered program developed by Laboratoire Central des Ponts et Chaussées (LCPC) in France for local conditions in Argentina. These measurements have been made on many different types of cross-sections over numerous roadbed soils. In situ nondestructive testing measurements have included surface wave propagation methods, the Lacroix deflectograph, and a specially fabricated double Benkelman beam which allows the easy calculation of the deflection basin. Back calculation of moduli using various analytical models on microcomputers. The measurement of resilient modulus of soils and granular materials, and dynamic moduli of bound surface materials. The in situ measurement of material strengths using various NDT devices. The paper addresses three fundamental areas of engineering research concerning nondestructive testing (NDT): 1. This paper deals with experience acquired in Argentina in nondestructive testing of pavements and back calculation of moduli from 1967 to 1987 by the research group of the IMAE (Institute of Applied Mechanics and Structures).
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