Multi-Scale Rheo-Mechanical Study of SMA Mixtures Containing Fine Crumb Rubber in a New Dry-Hybrid Technology
作者： Francesco Mazzotta , Piergiorgio Tataranni , Andrea Simone , Daniele Fornai , Gordon Airey
DOI: 10.3390/APP10113887
关键词:
摘要: Aiming to study the rheo-mechanical effects of fine crumb rubber into gap graded stone mastic asphalt (SMA) mixtures, a multi-scale experimental approach was adopted. Therefore, in perspective reuse end life tires’ layers, adopted new dry-hybrid technology have been investigated from mastic, mortar and mixture points view. The rubberized production allows use powder as filler, amount optimization being validated through performance tests. Mastics mortars’ complex modulus measured with dynamic shear torsional tests were related stiffness recorded direct tension-compression mode. rheological properties are strictly influenced by presence, consequently mixtures thermo-sensitivity connected behavior. Results consistent reveal that technology, overcoming wet dry limits, it seems be possible obtaining more durable eco-friendly bituminous pavement layers.
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