A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Instrumenting an Asphalt Vibratory Compactor for Automation of Roadway Compaction
The work presented in this paper is a part of an ongoing research to predict the relative density of an asphalt mat in real-time during compaction in the field. In this paper, compaction results from a laboratory asphalt vibratory compactor (AVC) are presented. In laboratory test setup, the AVC was instrumented with tri-axial accelerometers connected to a computer equipped with a data acquisition card. Several asphalt mixes were compacted in the AVC and the vibration responses were recorded. The relationships between the vibratory response and the various process parameters such as: sample thickness, mix types, temperature vibration frequency, compaction pressure, etc. are examined. For selected mixes, the vibration properties (i.e. frequency) are evaluated using spectrogram method. The results show that the spectrogram of vibration response can represent the degree of compaction. The study results demonstrate that the similar (spectrogram) approach can be used to monitor the compaction process of asphalt pavements in real time by instrumenting the filed vibratory roller.
Instrumenting an Asphalt Vibratory Compactor for Automation of Roadway Compaction
The work presented in this paper is a part of an ongoing research to predict the relative density of an asphalt mat in real-time during compaction in the field. In this paper, compaction results from a laboratory asphalt vibratory compactor (AVC) are presented. In laboratory test setup, the AVC was instrumented with tri-axial accelerometers connected to a computer equipped with a data acquisition card. Several asphalt mixes were compacted in the AVC and the vibration responses were recorded. The relationships between the vibratory response and the various process parameters such as: sample thickness, mix types, temperature vibration frequency, compaction pressure, etc. are examined. For selected mixes, the vibration properties (i.e. frequency) are evaluated using spectrogram method. The results show that the spectrogram of vibration response can represent the degree of compaction. The study results demonstrate that the similar (spectrogram) approach can be used to monitor the compaction process of asphalt pavements in real time by instrumenting the filed vibratory roller.
Instrumenting an Asphalt Vibratory Compactor for Automation of Roadway Compaction
Tarefder, R. A. (author)
Construction Research Congress 2005 ; 2005 ; San Diego, California, United States
2005-08-01
Conference paper
Electronic Resource
English
Instrumenting an Asphalt Vibratory Compactor for Automation of Roadway Compaction
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