Kaipara Quarries laboratory operates in accordance with NZS/ISO/IEC 17025, General Requirements for the Competence of Testing and Calibration Laboratories and provides high-quality materials testing and technical services to its clients.  The laboratory is equipped to carry out quality control testing for aggregates used in the concrete, asphalt, and wider construction sectors.

Source property testing for quarry materials is carried out by external IANZ-accredited laboratories.

The team is led by the Marketing and Sales Manager and includes a Quality Assurance Supervisor and Quality Assurance Technician, with additional support from an independent QA Consultant. With the investment in new equipment and staff we have production testing results available on the same day. Previously using outside laboratories results took five to seven days to be received.

Production testing capabilities include:

• Wet and dry sieving

•  Specific gravity & Unit weight

• Sand equivalent

• Flow cone testing

QICPIC Dynamic Imager

The laboratory has also recently invested in a QICPIC Dynamic Image Analysis system, which uses high-speed imaging technology capturing up to five hundred images per second with thousands of particles in motion and advanced algorithms to measure their size and shape in real time. This approach eliminates the need for lengthy sieving, providing rapid, accurate particle size distribution and shape characterization. The QICPIC system will dry and analyse samples in fifteen minutes and results will be reported within an hour of getting a sample from stockpile

Our team delivers quality by:

• Meeting or exceeding customer expectations

• Supplying materials that are consistent and of a high standard

• Investing in technology, equipment, and process improvements

• Supporting ongoing development of team skills and capability

• Maintaining simple and effective quality management systems

• Building strong working relationships with clients, subcontractors, and the wider community

Commitment to Kaipara Values:

We are committed to strengthening our internal capability to provide impartial, high-quality material testing, investigation, and development services. This includes in-process testing to control and verify quality, as well as final production testing to demonstrate compliance with specified requirements.