JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Course Objectives:

• 1. This course focuses on planning of rural roads as well as design of pavements.
• 2. Various specifications for construction of rural roads is discussed
• 3. The importance of quality control construction and maintenance of rural roads is discussed

Course Outcomes

At the end of the course, students will be able to

• 1. Understand the concepts of planning and alignment of rural road networks.
• 2. Gain knowledge of the materials and pavement design for rural roads.
• 3. Understand the construction and specifications for rural roads.
• 4. Understand the importance of waste materials for pavement construction.
• 5. Understand the importance of quality control in construction and maintenance of rural roads.

UNIT - I

Planning and Alignment: Planning of Rural Roads, Concept of Network planning, rural roads planning, road alignment and surveys, governing factors on route selection, factors considered for alignment.

UNIT - II

Materials and Pavement Design: Introduction, Soil ,material surveys, embankment and subgrade materials, stabilized Soils, Road aggregates, aggregate for base courses, new materials as stabilizers, materials for desert areas, materials for bituminous constructions and surfacing; materials for rigid pavements, special pavement, climatic suitability of concrete materials. Introduction, design procedure, pavement components, design of flexible and rigid pavements, special pavements design, types of drainage, and general criteria for road drainage, system of drainage, surface and subsurface systems.

UNIT - III

Construction and Specifications: Introduction, selection of materials and Methodology, Embankment and subgrade, sub – base (granular), base(granular), shoulder, bituminous concrete, semi- rigid pavements, construction, concrete pavements, construction of special pavements, equipment required for different procedures.

UNIT - IV

Waste material for pavement construction: Introduction, fly ash for road construction, design & construction, design &construction of fly ash embankment lime fly ash and stabilized soil, lime fly ash pavements, control of compaction, concrete stabilized fly ash with admixtures.

UNIT - V

Quality Control in Construction and Maintenance: Introduction, Pre-requirements, organizational setup, specification and code of practice, Laboratory equipment, Earth and granular layers, bituminous courses, semi- rigid and rigid pavements, special requirements, recovered of quality control data. Distresses/Defects in rigid and flexible pavements, Maintenance and evaluation, inventory roads and inspections, types of Maintenance Activities, Maintenance.

R19 M.TECH HIGHWAY ENGG.

REFERENCE BOOKS:

• 1. IRC manual for rural roads. Special publication – 20(2002)
• 2. HMSO, Soil Mechanics for rural Engineers in, London
• 3. IRC related code books
• 4. NRRDA – guidelines and code books R19 M.TECH HIGHWAY ENGG. M.TECH.- I YEAR- II SEMESTER HIGHWAY ENGINEERING