Pavement Materials (Under Pavement Engineering)

ABOUT THE COURSE:The course on Pavement Materials will deal with the basic and fundamental understanding about the behavior of various materials used in the construction of pavements. Characterization, tests and engineering properties of these materials will be elaborated in context with its field application. Current practices and future trends in the area of pavement materials will be discussed. It is envisaged that this course will help in training students/engineers/faculty members in the domain of material engineering related to pavement application.INTENDED AUDIENCE: Students (B.Tech/M.Tech/PhD); Engineers; Practitioners; Faculty MembersPREREQUISITES: Any B.Tech (Civil), M.Tech (Transportation) or PhD (Pavement Materials) student can take this classINDUSTRY SUPPORT: Industries/Stakeholders related to Highway Construction: NHAI, MoRTH, IRC, PWD, PMGSY etc.

1. Soil: Introduction to soil as a highway material; Classification of soils; Consistency Limits; Soil compaction and role of moisture; Mechanical properties of soil (Shear strength, Unconfined compressive strength, Resilient modulus, California bearing ratio, Modulus of subgrade reaction etc.); Introduction to expansive soils, relevant tests, and soil stabilization techniques. 2. Aggregates: Aggregate origin, types, production, and quarrying operation; Classification of aggregates; Aggregate gradation and gradation parameters; Theories of aggregate blending; Minerology of aggregates and its importance; Aggregate shape and texture: quantification and importance; Aggregate strength properties, and relevant tests. 3. Bitumen, Modified bitumen, Bitumen emulsion and Cutback bitumen: Bitumen as a binding agent; Production of bitumen; Physical and rheological properties of bitumen; Introduction to viscoelasticity; Chemistry of bitumen; Ageing of bitumen; Grading of bitumen, and relevant tests: Penetration grade, Viscosity grade, Performance grade; Bitumen modification: Need, Types and Importance; Introduction of bitumen emulsion: Theory of emulsification, Uses, Grading of emulsions, and Relevant tests; Introduction to cutback bitumen: Types, Uses, and relevant tests. 4. Bituminous Mixtures: Production of bituminous mixtures: Laboratory and Plant; Role of bituminous mixture and desirable properties; Volumetrics of bituminous mixture; Mix design of bituminous mixture: Marshall and Superpave methods; Mechanical tests and characterization of bituminous mixtures; Introduction to performance based mix design concepts; Mix design of cold bituminous mixtures; Mix design of hot recycled mixtures 5. Cement: Production of cement; Theory of hydration and importance of different hydration products; Physical and chemical properties of cement; Types of cement; Pozzolanic and geopolymer materials as alternate cement. 6. Concrete Mix Design: Concrete proportioning and importance of various constituents; Introduction and mix design of pavement quality concrete, Dry lean concrete and Pervious concrete 7. Alternative Pavement Materials: State of the art on various alternative materials for construction of flexible and rigid pavements.