IRF Road Maintenance Practices
Select Other "city & date"
IRF Road Maintenance Practices Course
Introduction:
Course Objectives:
By the end of this course delegates will be able to:
- Identify common maintenance problems and causes
- Know about traffic control during maintenance
- Learn about crack repair in asphalt pavement
- Repair of depressions, rutting, and corrugations
- Crack repair in asphalt pavement
- Single and multiple surface treatments
- Understand the concrete bridge deck repair techniques & Follow IRF health and safety policies and procedures
Who Should Attend?
Construction Engineers, Senior Construction Engineers, Construction Supervisors, Construction General Supervisors, Construction Project Managers, Engineering Technologists, Supervision Engineer, Inspection Engineers, Civil Inspectors, Foremen.
Course Outlines:
Common Maintenance Problems and Causes
Common maintenance problems occurring on pavement surfaces, road bases, and sub-bases, earth and gravel roads, shoulders, drainage facilities, bridges and roadside, the main causes of most road maintenance problems
Traffic Control during Maintenance
Protection of maintenance workers and equipment, basic principles for selection, placement, maintenance and removal of traffic control devices, typical applications of traffic controls for maintenance works, International Road Signs
Pothole Repair in Asphalt Concrete Pavement
Potholes repair, a procedure using proper materials, tools and equipment, the proper shaping of the repair and the compaction of the mix
Pothole Repair in Surface Treatment Pavement
Correct procedures for use of granular material for filling the pothole, proper equipment, and materials used for repair, placing the traffic control devices, marking the damaged area, cutting out and removing all damaged material, compacting the granular material, sealing the surface with liquid asphalt and cover aggregate, cleaning the worksite and removing the traffic control devices
Crack Repair in Asphalt Pavement
Repair procedures for linear and alligator cracks from three to twelve millimeters wide, proper hand tools and equipment designed to do the job, materials for filling and sealing the cracks
Repair of Depressions, Rutting and Corrugations
The basic repair method for depressions, rutting, and corrugations, the proper procedures to perform this repair method with a motor grade, special considerations for placing and compacting each layer in a deep depression, how to place and compact a thin overlay over the leveling course
Base and Sub-base Repair
Correct procedures for the repair of base and sub-base, placing the traffic control devices, marking the limits of repair and cutting the pavement, removing all unsuitable material, installing required sub-drainage, restoring the sub-grade, replacing the sub-base and base, replacing the pavement surface, cleaning the worksite and removing the traffic control devices
Single and Multiple Surface Treatments
Good construction practices, preparation of the surface to be treated, testing of the asphalt distributor, and checking the weather, materials required for surface treatments, proper procedures for applying the asphalt, spreading the aggregate and compacting the aggregate, construction of smooth transverse and longitudinal joints
Slurry Seal
Useful and cost-effective method of maintaining paved surfaces, resources needed to perform a slurry seal job including materials, equipment, and manpower slurry seal operation steps: storage and loading of materials, traffic control, surface preparation, slurry application, curing, rolling and clean-up
Patching Unpaved Roads
Maintenance for repairing surface defects such as potholes, ruts, gullies and soft spots on unpaved roads, maintenance practices for preparing the hole, filling it with granular material and compacting the material is shown in detail
Smoothing and Reshaping of Earth and Gravel Roads
Smoothing, and reshaping: equipment requirement, an overview of work steps, work step summary, considerations for planning and preparing for the work are treated, procedures for checking the road cross slope at straight and curved road sections
Regraveling
Necessary repairs of the road and drainage system before graveling, equipment, materials, and procedures for regraveling: traffic control, reshaping and compacting the sub-grade, hauling, and placing the granular material, and compacting the granular material. Methods for checking the road cross slope and quick testing of the material’s moisture content
Reshaping Earth and Gravel Shoulders
the proper procedures for reshaping earth and gravel shoulders (without adding material) to correct shoulder drop-off, rutting, the buildup of material and excessive weed growth and to maintain a safe shoulder with proper cross slope. A nine-step maintenance procedure is clearly presented step-by-step and the equipment and hand tools required are also discussed.
Replenishing Earth and Gravel Shoulders
Nine maintenance work steps to restore the unpaved shoulder by adding new material are shown in the Module. Proper procedures are fully presented for preparing the existing shoulder surface before adding additional material, placing and spreading additional material, and compacting the material. Equipment and material required to do the job best are discussed, as well as the proper use of equipment.
Mechanical Cleaning of Unlined Ditches
Mechanical cleaning procedures with a motor grader and with an excavator are presented. The tape reviews ditch structure and function, and selection of the appropriate type of equipment to be used depending on ditch design and condition. Proper work step details include planning the job, traffic control, cleaning the ditch, cleaning adjacent culvert inlets and outlets and outfall ditches, disposing of unwanted material, cleaning up the job site, inspecting the finished job.
Cleaning of Lined Ditches, Culverts and Catch Basins
Proper procedures for manual cleaning of lined ditches, culverts and catch basins are demonstrated, the procedure includes traffic control, assigning the work, removing and disposing of all debris and obstructions, inspecting for damage, making minor repairs, cleaning up the worksite
Cleaning and Clearing of Bridges
Procedures for cleaning bridge decks, drain holes, downspouts, expansion joints, all signs, and reflectors, removing unauthorized writing or painting, cleaning bearing assemblies, pier caps, and abutments, and removing debris and waterway obstructions
Concrete Bridge Deck Repair
Procedures for permanent repair of partial and full depth bridge deck holes with cement concrete, proper procedures and proper use of equipment and tools for cutting the concrete, cleaning out the hole and the reinforcing steel, building the form, preparing the concrete, and placing and finishing the concrete