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Title: EFFECT OF FLAT AND ELONGATED COARSE AGGREGATE ON FIELD COMPACTION OF HOT-MIX ASPHALT
Accession Number: 00819990
Record Type: Component
Record URL: Availability: Transportation Research Board Business Office 500 Fifth Street, NW Find a library where document is available Abstract: It has long been believed that coarse aggregates that have a flat and elongated (F&E) shape are detrimental to the properties of hot-mix asphalt. Several attempts have been made to establish a relationship between these aggregate particles and performance. It is believed that decreased performance may result from either aggregate breakage or less than optimum particle orientation. The question of mixture performance is set aside, and the focus is on the construction effects in asphalt mixtures with high percentages of F&E aggregate. Research shows that for a given gradation and aggregate type, increasing the percentage of F&E will increase the amount of aggregate breakdown. One focus is to determine if the same relationship between percentage of F&E particles and breakdown that has been documented in laboratory settings can be observed in the field. The other focus is on a comparison of the aggregate breakdown caused by the gyratory compactor with the aggregate breakdown in the field.
Supplemental Notes: This paper appears in Transportation Research Record No. 1761, Construction 2001.
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Aho, B DVavrik, W RCarpenter, S HPagination: p. 26-31
Publication Date: 2001
Serial: ISBN: 0309072212
Features: Figures
(5)
; References
(4)
; Tables
(3)
TRT Terms: Uncontrolled Terms: Subject Areas: Construction; Geotechnology; Highways; Materials; I31: Bituminous Binders and Materials; I36: Aggregates; I52: Construction of Pavements and Surfacings
Files: TRIS, TRB, ATRI
Created Date: Nov 9 2001 12:00AM
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