PAVEMENT DESIGN FOR THIN BITUMINOUS LAYER AND GREENHOUSE GAS BENEFIT
DOI:
https://doi.org/10.11113/mjce.v29.15592Keywords:
Region of interest (ROI), Speed-up Robust Features (SURF), Hue Saturation Value (HSV), Pavement, bituminous layer, fatigueAbstract
Bituminous layer thickness is determined based on fatigue life and granular layer thickness is determined based on rut life. Higher bituminous thickness is required for increasing the fatigue life in pavement design thus increasing the project cost as well. In order to reduce project cost in some cases and places, fatigue life is not considered and pavement is allowed to design for rut life only and minimum bituminous layer is provided for protecting granular layer to avoid early distress. It depends on country practices and local experience. Cement treated sub base with granular base may be provided with thin bituminous surfacing of 40 - 90 mm to economize the project cost. This paper presents the development of Pavement design chart for thin surfacing and compare with conventional thickness and cost for few hypothetical case studies. Carbon credit is also compared for both cases. It is found from the case study that thin surfacing entails 20 % less cost and 28 % reduction of greenhouse gas (GHS) emissions compared to conventional pavement design.References
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