A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Evaluation of the Superpave Gyratory Compactor for Low Volume Roads
There is evidence that some Kansas mixes, which have performed well in the past, will not meet the currently proposed design requirements for a Superpave level 1 mix. The major problem is low voids in the mineral aggregate (VMA). The major reasons for low VMA are high amounts of natural sand currently used and the higher compactive effort required by Superpave compared to 50-blow Marshall compaction. Cores, plant produced (field) mix, the original aggregates and asphalt cement were obtained from four low volume pavements. The cores established the in-place density of the pavements. The field mix was compacted in the Superpave Gyratory Compactor (SGC) to establish the number of gyrations required to reach the field density of the mix. The aggregates and asphalt cement were obtained and Superpave mix designs were performed. The void properties were evaluated at the original and revised N design gyrations. The effect of reducing the ram pressure from 600 kPa to 400 kPa was evaluated as well.
Evaluation of the Superpave Gyratory Compactor for Low Volume Roads
There is evidence that some Kansas mixes, which have performed well in the past, will not meet the currently proposed design requirements for a Superpave level 1 mix. The major problem is low voids in the mineral aggregate (VMA). The major reasons for low VMA are high amounts of natural sand currently used and the higher compactive effort required by Superpave compared to 50-blow Marshall compaction. Cores, plant produced (field) mix, the original aggregates and asphalt cement were obtained from four low volume pavements. The cores established the in-place density of the pavements. The field mix was compacted in the Superpave Gyratory Compactor (SGC) to establish the number of gyrations required to reach the field density of the mix. The aggregates and asphalt cement were obtained and Superpave mix designs were performed. The void properties were evaluated at the original and revised N design gyrations. The effect of reducing the ram pressure from 600 kPa to 400 kPa was evaluated as well.
Evaluation of the Superpave Gyratory Compactor for Low Volume Roads
S. A. Cross (author) / J. C. Lee (author)
2000
66 pages
Report
No indication
English
Construction Equipment, Materials, & Supplies , Highway Engineering , Aggregates , Compacts , Gyrators , Hot mixing mixtures , Road materials , Asphalt pavements , Performance tests , Pavements , Compaction , Bituminous concretes , Density(Mass/Volume) , Tables(Data) , Implementation , Highway maintenance , Kansas , Mixtures , Superpave Gyratory Compactor
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