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Title	COMPUTER TECHNIQUES FOR IDENTIFYING DEFICIENT AND OPTIMUM JMF SPECIFICATIONS FOR ASPHALT PAVEMENTS
Accession No	00378471
Journal Title	Better Roads Vol. 53 No. 3
Corp. Authors / Publisher	James Informational Media, Incorporated
Publication Date	19830300
Description	p. 21-22
Abstract	A new computerized technique recently has been developed and successful demonstrated by J.A. Trujillo, P.E., for establishing high-stress materials specifications for long-life pavements. His computer methodology also analyzed the deficient specifications currently in use by State agencies. Trujillo's approach differs radically from conventional Marshall and Hveem methods in that it is systematic and volumetrically defined: a new procedure for evaluating proposed aggregates when establishing initial design specifications, an adaptive mix design/plant control procedure for maintaining tightly controlled voidage testing production, and analytical testing procedures for predicting voidage of a given mix proportion after years of traffic. The computerized technique uses "particle packaging" concepts. Instead of using a multiple sieve job mix formula (JMF) and maintaining these sieves to control voidage, the methodology employs a single-sieve design and analysis of mix proportions to generate a volumetric relationship of "air voids" and "percent voids filled".
TRT Terms	Air voids ; Asphalt pavements ; Data processing ; Expansion joints ; Mix design ; Specifications
Other Terms	Air voids content; Asphalt pavement specifications; Computer applications
Subject Areas	H31 BITUMINOUS MATERIALS AND MIXES; H35 MINERAL AGGREGATES; I36 Aggregates; I31 Bituminous Binders and Materials
ISBN	Better Roads
Availability	Linda Hall Library Find a library where document is available Order Document: http://worldcat.org/oclc/1519687
Document Source	Engineering Index Source Data: EIX830700015
TRIS Files	HRIS
Database	TRIS Online

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