Kuna, KAirey, GThom, NK. Kuna, G. Airey, and N. Thorn, "Laboratory mix design pro- cedure for foamed bitumen mixtures," Transportation Research Record, vol. 2444, pp. 1-10, 2014.Kuna K, Airey G, Thom N (2014) A laboratory mix design procedure for foamed bitumen mixtures (FBM). Transport R...
Therefore, the BSM mix design procedure typically involves optimization in terms of compaction characteristics, mechanical properties and/or durability parameters. Sign in to download hi-res image Fig. 12. Change in weight and volume constituents per unit of BSM – (a) immediately after compaction,...
Mix formulation also comes into play, the bitumen thickness and the mix porosity being important parameters. It finally depends on the local climate and all these involved parameters make it quite complicated to accurately describe in-situ ageing. Simulation of in-situ ageing is therefore more ...
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Clay/silica was prepared with hydrothermal syntheses method using a procedure adapted from Yang et al.51 and Cheraghian et al.30,52. The size distribution of materials and X-ray diffraction (XRD) pattern were evaluated with dynamic light scattering (DLS) (Malvern ZEN 3600, UK) and X-ray po...
Over the last years, the use of warm mix asphalt (WMA) in asphalt industry allows important reductions in production and compaction temperatures guarantying relevant environmental benefits. However, the most proper laboratory procedure for short-term ageing of WMAs must still be defined. This study ...
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lnμmix=(1−αVBαVB+Vs)lnμs+(αVBαVB+Vs)lnμB0<α<1 μs represents the viscosity of the solvent, μB stands for the pure bitumen viscosity, VB represents the volume of pure bitumen, VS stands for the volume of pure solvent, and xs and xB denote solvent and bitumen...
Therefore, as long as the stability of the mixture is not compromised, in BSMs the bitumen properties are not as crucial as in HMA mix design. For this reason, some agencies like Caltrans [23] do not specify the required properties of the virgin bitumen. Alternatively, the bitumen selection...