00602688

Component

http://onlinepubs.trb.org...trr/1990/1269/1269-012.pdf

https://scholar.google.co...+Lee&publication_year=1990

The viability of using an air meter (Type B) for determining the maximum theoretical specific gravity (MTSG) of asphalt mixtures was evaluated. The air meter normally has been used for determining the percentage of air in fresh portland cement concrete. A series of experiments were performed using this new method (herein called the "pressure method") and the current standard (Rice) method. The primary experiment involved determining MTSG by two methods on 10 asphalt mixtures with varying asphalt contents. There was good correlation and no significant difference in the performance or precision between the two methods. There was little difference in obtaining the optimum asphalt content by the two methods. The results of the additional experiments with aggregates from three different sources indicated no difference in precision between methods or operators. Suggestions were made for modifying and improving the air meter for pressure method testing, to add versatility in the options for determining the MTSG of asphalt mixtures (and other materials of a porous or water-absorbent nature).

This paper appears in Transportation Research Record No. 1269, Asphalt Mix Materials and Mixtures 1990. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

01407214

0000-0002-5204-9493

p. 101-115

1990

Transportation Research Record

0309050502

Appendices (1) ; Figures (6) ; References (4) ; Tables (14)

Accuracy; Air voids; Alternatives analysis; Asphalt content; Asphalt mixtures; Specific gravity; Test procedures

Highways; Materials; I31: Bituminous Binders and Materials

TRIS, TRB, ATRI

Dec 31 1990 12:00AM

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