|
|
|
Title: FIELD CONDITIONING OF SUPERPAVE ASPHALT MIXES
Accession Number: 00819994
Record Type: Component
Record URL: Availability: Transportation Research Board Business Office 500 Fifth Street, NW Find a library where document is available Abstract: Failing volumetric properties (low air voids and voids in mineral aggregate) have been a common occurrence in the production of Superpave mixes in Florida and nationally. There are several potential causes of this problem including the effect of asphalt absorption as related to conditioning time. Research was done to determine (a) whether the 2-h force-draft oven conditioning adequately simulates actual roadway conditions and (b) how actual roadway conditions can best be simulated when the asphalt mixture is sampled and tested immediately following production at the plant. The results indicate the following: (a) 3 h of conditioning during design best correlated with roadway conditions; (b) a 1-h conditioning time at the asphalt plant resulted in maximum specific gravity values that best correlated with roadway conditions; (c) 1 h of conditioning at the asphalt plant increased the air voids of the mix by 0.5% for absorptive materials and 0.25% for nonabsorptive materials; and (d) conditioning had minimal effect on bulk density values.
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: Musselman, J APage, G CSholar, G APagination: p. 61-69
Publication Date: 2001
Serial: ISBN: 0309072212
Features: Figures
(9)
; Tables
(10)
TRT Terms: Uncontrolled Terms: Subject Areas: Construction; Highways; I52: Construction of Pavements and Surfacings
Files: TRIS, TRB, ATRI
Created Date: Nov 12 2001 12:00AM
More Articles from this Serial Issue:
|
