[PDF][PDF] Relating asphalt absorption to properties of asphalt cement and aggregate
PS Kandhal, MA Khatri - Transportation Research Record, 1992 - ncat.us
PS Kandhal, MA Khatri
Transportation Research Record, 1992•ncat.usMineral aggregates used in hot mix asphalt (HMA) mixtures have some porosity and as such
tend to absorb some amount of asphalt cement. Several indirect and direct methods for
estimating or determining asphalt absorption have been researched in the past. However,
there is a need to study the asphalt absorption phenomenon as related to the physical
properties of the mineral aggregate and asphalt cement binder. Eight mineral aggregates of
different absorptive characteristics, geologic origin and mineral compositions were selected …
tend to absorb some amount of asphalt cement. Several indirect and direct methods for
estimating or determining asphalt absorption have been researched in the past. However,
there is a need to study the asphalt absorption phenomenon as related to the physical
properties of the mineral aggregate and asphalt cement binder. Eight mineral aggregates of
different absorptive characteristics, geologic origin and mineral compositions were selected …
Abstract
Mineral aggregates used in hot mix asphalt (HMA) mixtures have some porosity and as such tend to absorb some amount of asphalt cement. Several indirect and direct methods for estimating or determining asphalt absorption have been researched in the past. However, there is a need to study the asphalt absorption phenomenon as related to the physical properties of the mineral aggregate and asphalt cement binder.
Eight mineral aggregates of different absorptive characteristics, geologic origin and mineral compositions were selected from the SHRP Materials Reference Library (MRL). Four asphalt cements ranging from AC-5 to AC-30 grades were also obtained from SHRP MRL. A total of 96 HMA mixtures were prepared and tested for asphalt absorption. Physical properties of aggregates (including pore characteristics) and asphalt cements were determined.
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