Effect of fines content on dry and saturated indirect tensile strength of hot mix asphalt mixtures
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Date
2015
Journal Title
Journal ISSN
Volume Title
Publisher
Technical Journal, University of Engineering and Technology (UET) Taxila, Pakistan
Abstract
Fines and coarse aggregates play vital role in
achieving strength properties of hot mix asphalt
(HMA) mixtures. ASTM D 3515 recommends nine
types of gradations combinations to be used for HMA
with variable fractions of fines. In this research the
effect of fines in these nine gradations of HMA were
evaluated. HMA with variable fines contents were
prepared in laboratory using gyratory compactor. The
indirect tensile strength using Universal Testing
Machine (UTM HYD-25-II) of original and moisture
conditioned HMA samples were determined. Tensile
strength ratio (TSR) of the HMA samples was also
evaluated. It has been observed that with the increase in
the fines content the strength and TSR of HMA samples
initially increase then it decrease. The HMA mixes
having low plastic fines (PI = 6) should not be exceeded
beyond 10 % in order to achieve optimum strength.
Description
Keywords
Hot Mix Asphalts, Fines, Indirect Tensile Strength, Tensile Strength Ratio, Moisture Conditioning
Citation
12. Maqbool, S., Khan, A., Inam, A., Sultan, T., Rashid, M., & Rizvi, M. (2015). Effect of Fines Content on Dry and Saturated Indirect Tensile Strength of Hot Mix Asphalt Mixtures. University of Engineering and Technology Taxila. Technical Journal, 20(1), 54.