Abstract
Foamed asphalt treated mixture is a kind of material whose properties are between semi-rigid and flexible. However, there is not enough information of strength characteristics of this material for the authors. In this study, the authors monitored the foamed asphalt treated mixture’s characteristics of strength, density and moisture content with different curing conditions to study the formation process and regularity of it’s strength character. The authors investigated the relationship between strength forming and asphalt dispersion with the help of micro-scale analysis observations and it was found that in the study that obtained strength factors for foamed asphalt mixture was directly related to the evaporation of water and there was a migration process for asphalt. In this process, asphalt blocked some of the void of test specimen, so that the opening voids decreased and the closed void increased instead. As a result, water stability of foamed asphalt concrete was improved.
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