AGGREGATE & QUARRY ASSOCIATION
Technical & Planning
TECHNICAL
The AQA engages with local and central government on planning issues, specifications and sustainability issues; and it works and cooperates with other industry organisations on behalf of the quarrying and aggregate sector. The Technical Committee includes members from the wider industry and is also represented on several external committees in the roading, asphalt and concrete sectors.
The Technical Committee’s role is to improve the technical knowledge of New Zealand aggregates for our members and users of our products and assist members to attain best practice in complying with operational, environmental and regulatory requirements.
- AQA guidance – Liquid limit
- NZTA T10 explanation
- Aggregates for asphalt
- Hi-Lab information notes – September 2022
- Sand Grading Exponent MC
- ASR impacts of concrete aggregates
- Minerals forum quarry stats 2019
- M04 moving average
- Ethylene Glycol flowchart
- Guidance on pipe bedding materials and their usage
- Ethylene Glycol Testing Position Statement
Aggregate Testing Resources
Access our collection of aggregate testing videos below created to help members confidently carry out and understand essential product quality tests. From Aggregates Sampling and Crushing Resistance to Plasticity Index and Particle Size Distribution, each video provides clear, practical instruction to support accurate testing and consistent results. Use these resources as part of your training, quality assurance, and continuous improvement programs.
Aggregates Sampling
Crushing Resistance
Weathering Quality Index
Clay Index Test
Plasticity Index
Particle Size Distribution
If you have any questions about the testing methods, procedures, or results, please feel free to contact a member of the AQA Technical Committee. We are here to help and support our members in achieving the best possible outcomes.
Mike Chilton – AQA Techinical Advisor – [email protected]
Issues often arise when specifications are developed, especially on a local level, and incorporated into tenders and agreements that are just not workable. Technical fact sheets are available below in the download section. If you have any concerns or questions of a technical nature call one of the members of the AQA Technical Committee listed below, or contact [email protected].
| Technical Committee | |||
| Chair | Clare Dring | Fulton Hogan | 021 115 3244 |
| Deputy Chair | Jayden Ellis | Stevensons (FH) | 0292 882 921 |
| Technical Advisor | Mike Chilton | AQA | 021 594 225 |
| Committee | David Morgan | Green Vision Recycling | |
| Stacy Goldsworthy | HIWAY | ||
| Stacey Walker | Winstone Aggregates | ||
| Paul Donoghue | ConcreteNZ | ||
| Arne Corrie-Johnston | Civil Contractors NZ | ||
| Wayne Scott | AQA | ||
Manufactured Sand
Aggregate (crushed rock, gravel, and sand) is an essential resource for the construction sector, housing, transport infrastructure and climate change adaption. Due to unprecedented levels of construction and infrastructure development activity, there is growing demand for aggregate which is in short supply in many parts of New Zealand. Where resources are scarce or consenting time frames impact supply, it is important to utilise quarry products effectively.
Sand is currently the second most used raw material on the planet, it is used across several sectors, is easy to obtain and suitable for many purposes. The demand for its use in construction, microchips, glass and in cosmetics has been rapidly increasing with the increase of urbanisation and it is becoming less readily available because of this growth, and the closure of unsustainable sand extraction operations in many parts of the world.
Read the full manufactured sand paper here.
PLANNING
The purpose of the Planning Committee is to provide advice to members and the AQA Board on policy and planning issues relating to the establishment, consenting and operation of quarries and the production of aggregates, lime and other materials.
AQA submit on all regional and district plans and encourage all of our members to submit on those plans that affect them.
If you require any assistance with submissions, development applications or general resource consent advice please contact [email protected].
| Planning Committee | |||
| Chair | Don Chittock | Fulton Hogan | |
| Committee | Wayne Scott | AQA | 021 944 336 |
| Ian Wallace | Winstone Aggregates | ||
| Tyler Sharrat | Winstone Aggregates | ||
| Dudley Clemens | J Swap Contractors | ||
| Jo Young | Stevenson Aggregate | ||
| Steve Riddell | Kaipara Ltd | ||
| Jeremy Harding | AQA | ||
MORE LIKE THIS
ABOUT QUARRYING IN NEW ZEALAND
USING AGGREGATE
Aggregates are the most consumed bulk product in the world after water. New Zealand uses 9-10 tonnes of aggregate every year for each adult and child.
BUILDING NZ
To build an average house, you need about 250 tonnes of aggregate - for use in concrete, asphalt, mortar and building products.
OUR COMMUNITY
The quarry industry is committed to working alongside local communities and follows stringent planning, environmental and operating conditions.
AFFILIATED ORGANISATIONS
