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Simulating the Effects of Instrumentation on Measured Pavement Response
Asphalt strain gauge installation procedures have typically used hot mix sieved through a 4.75 mm screen, hand placed over the gauges and hand compacted prior to roller compaction which has led to a high gauge survival rate. This finer mix in the immediate vicinity of the gauge could theoretically yield lower moduli and higher strains. The objective of this study was to evaluate the potential effect of using a finer mix as gauge cover on pavement response. Finite element analysis was used to simulate a three-layered pavement structure containing a patch of sieved material at the bottom of the asphalt concrete layer. Tensile strain responses were calculated at the bottom of the asphalt concrete layer under a single load for all structures with and without the finer mixture. The results were compared to a previously defined benchmark of 30 µε which was more likely tobe exceeded with layers thinner than 5 in. and moduli between 200 and 500 ksi.
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Informasi Detail
- Judul Seri
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Advances in Pavement Design through Full-scale Accelerated Pavement (R)
- No. Panggil
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- Penerbit
- London : ., 2012
- Deskripsi Fisik
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- Bahasa
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Indonesia
- ISBN/ISSN
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978-0-415-62138-0
- Klasifikasi
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NONE
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- Tipe Media
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- Info Detail Spesifik
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- Pernyataan Tanggungjawab
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