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Showing 1 to 4 of 4 for “"Unbound Aggregates"”.
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Performance-based evaluation of unbound aggregates affecting mechanistic response and performance of flexible pavements
Unbound aggregates are widely used in road construction to replace unsuitable soil, prepare pavement working platform or construct pavement foundation layers. Their primary function in flexible pavements is to distribute wheel loads and provide adequate protection of the subgrade. However, the …
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Targeting aggregate marginality from a chemical and materials perspective to improve pavement performance
Unbound granular aggregates, due to a comparatively lower cost in comparison to bound pavement layers, are extensively used in the construction of road pavements. Thus, it is not surprising that a careful testing and selection of these materials is required to ensure a longlasting pavement life …
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Three-Dimensional Finite Element Analysis of Flexible Pavements Considering Nonlinear Pavement Foundation Behavior
… i.e., fine-grained subgrade soils and unbound aggregates used in untreated base/subbase layers, due to repeated wheel loading. This nonlinear behavior is commonly characterized by stress dependent resilient modulus material models that need to be incorporated into finite element based …
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Aggregate characteristics affecting response and performance of unsurfaced pavements on weak subgrades
… involves covering the prepared subgrade with an unbound aggregate layer of sufficient thickness such that traffic-induced wheel loads are adequately distributed and stresses on the subgrade can be tolerated. Aggregate gradation and field-density requirements are commonly the only considerations …