Absorption in Manufactured Soil Aggregates
Publication: Journal of Transportation Engineering
Volume 109, Issue 6
Abstract
Absorption characteristics of cylindrical soil aggregates manufactured using three soils of different mineralogy and composition and fired to temperatures between 1,922° F (1,050 °C) and 2,282° F (1,250 °C) were assessed with respect to absorption of water and of bitumen. The investigation revealed that the commonly used 24‐hr water absorption value is not a reliable indicator of the absorption capacity or the bitumen absorption potential of aggregates. A 5‐hr boiling test is suggested to determine the absorption capacity. Absorption of bitumen by the manufactured aggregates shows a good correlation with the porosity if pores larger than 0.05 μm in radius are considered. Mercury porosimetry is found to be a suitable technique for determining the pore size distribution of aggregates and the data may be used to predict the absorption characteristics of aggregates.
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Information & Authors
Information
Published In
Journal of Transportation Engineering
Volume 109 • Issue 6 • November 1983
Pages: 800 - 814
Copyright
Copyright © 1983 ASCE.
History
Published online: Nov 1, 1983
Published in print: Nov 1983
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