TRR. No. 1171 Asphalt Materials And Mixtures
To examine the ability to measure the fundamental process parameters of the Marshall compaction operation, several mix specimens were compacted with a mechanical hammer instrumented with accelerometers. From the analysis of data obtained, it was concluded that technology for measuring the amount of energy delivered to the specimen during the compaction process is currently available. research and development needed for adapting this technology to the field calibration of the Marshall hammer are recommended