Mechanistic Design Pavement Stresses Due to Tire Load Types of Pavement Design Approaches 4 Empirical methods based on РІР‚вЂњStrength test (CBR) РІР‚вЂњClassification (soil classification) 4 Limiting shear failure methods 4 Limiting deflection methods 4 Regression methods based on Road Tests РІР‚вЂњAASHTO road test 4 Mechanistic-Empirical methods РІР‚вЂњMechanistic model predicts stresses, strains, deflections РІР‚вЂњRegression models to predict pavement life humidity) РїР‚Т‘ Materials РїР‚Т‘ Failure criteria РІР‚вЂњDistress types, functional failure level of distress РїР‚Т‘ Reliability needed for the pavement РїР‚Т‘ Pavement management system РІР‚вЂњLife cycle cost (costs of construction & maintenance) РІР‚вЂњPavement design life Pavement Design Criteria РїР‚Т‘ Traffic & loading (axle loads, # of load applications, contact area of load, vehicle speed) РїР‚Т‘ Climate (temperature, precipitation, rel. Pavement Design РїР‚Т‘ A pavement consists of a number of layers of different materials 4 Pavement Design Methods РІР‚вЂњAASHTO Method РІР‚вЂњThe Asphalt Institute Method for Flexible Pavements РІР‚вЂњPortland Cement Association (PCA) Method for Concrete Pavements РІР‚вЂњTexas DOT Method РІР‚вЂњOther methods Presentation on theme: 'Pavement Design РїР‚Т‘ A pavement consists of a number of layers of different materials 4 Pavement Design Methods РІР‚вЂњAASHTO Method РІР‚вЂњThe Asphalt Institute Method.'- Presentation transcript:

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