How to Produce Safe and Durable Utility Reinstatments
- Course focuses on excavation, backfill, sub base, asphalt terminology, and aggregate properties.
- It covers bitumen grades, laying asphalt, ancillary activities, and assessment of finished job.
- Practical asphalt laying session is included in closed courses.
- Participants learn about material properties, identification, and laying techniques.
- The course emphasizes importance of compaction, skid resistance, and surface regularity.
Overview
This one-day course focuses on providing in-depth knowledge and practical skills related to asphalt construction and maintenance. Participants will learn about excavation, backfill, sub base, asphalt terminology, aggregate properties, bitumen grades, laying techniques, ancillary activities, and assessment of finished jobs. The course aims to enhance understanding of asphalt materials and their applications, as well as improve the quality and durability of asphalt construction projects. Practical sessions are included for hands-on experience in asphalt laying.
Who should attend
Civil Engineers
Course Content
Course duration: 1 Day
Cost: £295 + VAT
Course Outline
Session 1
Excavation, Backfill and Sub base.
o Classification and re-use of excavated material.
o Sub base options.
o Placement and compaction of backfill and sub base.
o Foamed concrete, recycled products and other ‘Alternative’ materials.
Asphalt terminology update, material properties and identification.
o Hot Rolled Asphalt, Stone Mastic Asphalt and Asphalt Concrete.
o Differences between the materials
o Where each asphalt mixture should/may be used.
o Specifying and ordering.
Session 2
Aggregate properties.
o PSV – polished stone value and AAV – aggregate abrasion value, why they are important.
o Basics of skid resistance.
o Why similar asphalt mixtures, from different suppliers, may handle differently.
Bitumen grades
o Grades available and terminology, what the ‘penetration’ value means.
o Implications of using different grades.
Laying asphalt.
o Edge and base preparation, trimming back.
o Temperatures.
o Laying techniques, surcharge.
o Lift/layer thickness.
o Compaction, why it’s so important.
Session 3
Ancillary activities.
o Road markings, High Friction Surfacing, coloured surface treatments.
Assessment of the finished job.
o Surface regularity, crowning and depression.
o Texture Depth.
o Core sampling, air void measurement and compliance judgment.
Practical asphalt laying session (Closed courses only)
