Factors affecting the design and the field performance of chipseal surfacings are complex. Local conditions can significantly affect seal design and performance.
A detailed knowledge of the materials, treatment selection, design procedures and construction processes is essential to any understanding of chipseal performance on the road.
The design procedures from the recently-published textbook "Chipsealing in New Zealand" provide the basis for this course including worked examples. In addition, the practical application of the NZTA P/17 performance-based specification will be covered in detail, including worked examples.
Topics include:
- Understanding the stresses
- Skid resistance basics
- Assessing chipsealing needs
- Preseal treatments
- Bitumen, emulsions additives, polymers
- Adhesion
- Chip materials and specifications
- Design processes & options
- Worked design exercises
- Types of plant used in chipsealing construction
- Construction of chipseal and reseals
- Analysis of faults, failures & fixes
- Sampling and testing
- Quality assurance
- Contractual responsibilities and procedures for P/17
- Determination of acceptance criteria for P/17
- Acceptance testing for P/17
- Worked P/17 examples
On completion of this course participants will have the knowledge to:
- Assess chipsealing needs
- Understand design steps required
- Determine pretreatments required
- Determine appropriate surfacing treatments - including binder and chip application rates
- Calculate hot binder spray rates
- Identify essential spray preparation/spraying control, traffic control/compaction checks to ensure quality of seal
- Select plant for production requirements and job type
- Understand the contractual frameworkfor P/17 contracts
- Determine P/17 acceptance criteria
- Carry out acceptance measurements and apply acceptance criteria to completed chipseals.
National Qualification information:
This course will address theoretical and knowledge requirements related to the below unit standards. It will not cover assessment and practical requirements unless specifically stated under course costs. 8021 Demonstrate knowledge of chipseal construction plant
21664 Design chipseal surfacings and pretreatments
1496 (expiring)Demonstrate knowledge of bitumen materials, their modification and handling on chipsealing works
1499 (expiring) Design chipseal surfacings
Who Should Attend:
People with limited knowledge of chipseal design and experienced practitioners wishing to update their skills in line with the new approach in the "Chipsealing in New Zealand" textbook and in the application of the P/17 specification. Personnel from Local Authorities, contractors and consultants will find this course particularly useful.
Cost:
$620.00 per person + GST (Minimum numbers apply before a course is confirmed)
Presenter Information:
Presenter Profile: Barry Gundersen has over 38 years engineering and management experience in the road surfacing industry on both sides of the Tasman. He was National Technical Manager for Bitumix (NZ) for 15 years before setting up his own consultancy in 1995, specialising in road surfacings. Barry has been a visiting lecturer at Auckland University for 12 years and also runs training courses for the Australian Asphalt Pavement Association.
Entry recommendations:
- It is recommended that attendees should also attend or have completed the Bitumen Safety Course within the last 5 years.
- For maximum benefit it is recommended that participants have the mathematical ability of at least NCEA Level 1 (old School Certificate).
Participants to bring to course:
Participants are recommended to bring a copy of the 'Chipsealing in New Zealand' textbook released by Transit NZ (NZTA) in 2006. The cost is $160.00 including GST postage and handling. One copy per two comany attendees should be sufficient. To order a copy of this textbook please follow these instructions. Visit the Transit NZ website www.transit.govt.nz, choose Technical Information and then Manuals, Manual Amendments and Technical Documents. Scroll down until you see 'Chipsealing in New Zealand.' Fill in your details and Transit will send you the invoice and book.
Further Information
For further information please contact Jan Kivell | 
