The constant demand for high-performing and more reliable roads has led to an increasing use of complex bituminous binders such as polymer-modified binders, which become a widespread practice asphalt pavement. As result, specification testing have evolved better distinguish between quality materials. In recent years, focus been devoted evaluating the rutting resistance binders. multiple stress ...

Crumb rubber modified bitumen (CRMB) can be regarded as a binary composite system in which swollen particles are embedded the matrix. Previous study has successfully implemented micromechanics models predicting complex moduli of CRMB binders using more representative constituent parameters. In regime master curves, while used predicted well high-frequency range, they underestimated modulus low-...

Semi-Flexible Pavement (SFP) is a composite type of pavement produced by manufacturing porous asphalt mixes using open graded aggregate gradation to create 20-35% voids filled with grout (cement paste, cement mortar, etc.….). The resulting has the flexibility and some strength concrete pavement. current study focused on investigation widely available (in Iraq) waste material namely Rice Husk As...

Bitumen in asphalt pavements reacts slowly with atmospheric oxygen, resulting oxidative ageing. This reaction is strongly dependent on the physical diffusion of oxygen into bitumen. study aims to use molecular dynamics (MD) simulation investigate bitumen film and analyse effects anti-ageing compounds (AACs) diffusion. The MD simulations using a Polymer Consistent Force Field (PCFF) were conduct...