Ability of rotary compactor in compacting consistent slabs and effect of rotary compaction on engineering properties of stone mastic asphalt mixtures
来源期刊：中南大学学报(英文版)2013年第12期
论文作者：Ratnasamy Muniandy Hamed Haghighi Salihudin bin Hassim Danial Moazami
文章页码：3754 - 3763
Key words：stone mastic asphalt (SMA); rotary compactor; SMA compaction; asphalt mixture engineering properties
Abstract: A new automatic rotary compactor and its abilities in compacting stone mastic asphalt (SMA) are presented. Following an overview of the rotary compactor and the compaction procedure, it is demonstrated that the rotary compactor is able to produce uniform slabs with the desired thickness of 65 mm all over around. Furthermore, 132 cored samples from the rotary compactor had been compacted uniformly with approximately 4% optimum air void content. In addition, performance tests results indicate that the rotary compactor produces asphalt mixtures with the requirements of resilient modulus, Marshall stability and flow. A weight factor was introduced for each fraction of aggregates in the degradation analysis to compensate the crushing effect of aggregates during mixing and compacting.
Ratnasamy Muniandy, Hamed Haghighi, Salihudin bin Hassim, Danial Moazami
(Department of Civil Engineering, Universiti Putra Malaysia, Selangor 43400, Malaysia)
Abstract:A new automatic rotary compactor and its abilities in compacting stone mastic asphalt (SMA) are presented. Following an overview of the rotary compactor and the compaction procedure, it is demonstrated that the rotary compactor is able to produce uniform slabs with the desired thickness of 65 mm all over around. Furthermore, 132 cored samples from the rotary compactor had been compacted uniformly with approximately 4% optimum air void content. In addition, performance tests results indicate that the rotary compactor produces asphalt mixtures with the requirements of resilient modulus, Marshall stability and flow. A weight factor was introduced for each fraction of aggregates in the degradation analysis to compensate the crushing effect of aggregates during mixing and compacting.
Key words:stone mastic asphalt (SMA); rotary compactor; SMA compaction; asphalt mixture engineering properties
