Chipseal Design
Civil
A course by
WITT
An applied course covering the design and practical implementation of chipseal surfacings for roads, focusing on local condition factors, design methods, and NZTA P17 specification.
In-person study
Face-to-face learning in a physical classroom setting
Core skills this course teaches
Assess chipsealing needs
Learn to evaluate when and where chipsealing is required based on road conditions and performance needs.
Undertake and understand chipseal design steps
Develop skills to carry out the complete design process for chipseal surfacings, including calculations and treatment selection.
Determine pretreatments and appropriate surfacing treatments
Identify necessary surface preparations and select appropriate chipseal treatment types for specific situations.
What You're Signing Up For
This course provides in-depth knowledge of chipseal surfacing design, drawing from the 'Chipsealing in New Zealand' textbook and NZTA P17 specification. Participants will gain practical skills in evaluating, designing, and implementing chipseal treatments for roads, understand fault analysis, plant selection, quality assurance, and contractual procedures. The course is suitable for both new practitioners and experienced professionals seeking to update their skills.
Course Content
- Understanding stresses on a road surface
- Skid resistance basics
- Assessing chipsealing needs
- Preseal treatments
- Addressing adhesion issues
- Chipseal design processes and options
- Worked design exercises
- Plant used in chipsealing construction
- Construction of first coats and reseals
- Analysis of faults, failures, and fixes
- Quality assurance
- Contractual responsibilities and procedures for NZTA P17
What you need to know first
Sound knowledge of the nature and properties of road surfacing component materials (can be obtained via NZIHT 'Chipseal Materials' preparatory course)
Bitumen - Basic Safety course recommended within last five years
Recommended: Mathematical ability of at least NCEA Level 1
What sort of industry will this job lead to
Civil Engineering
Roading
Infrastructure
Construction
Future employment opportunities might be
Civil engineering roles focused on road construction and maintenance
Transport infrastructure specialist
Roading contractor or consultant
Local government infrastructure management