Aggregates

The Hastings Quarry produces a range of basecourses for the tightly specified products used in highway construction down to the non-specified basecourses suitable for use as site access metal or in general construction. High quality materials are produced to rigid specifications set by the New Zealand Transport Agency including TNZ 40 or 65mm products.

The Hastings Quarry specialises in providing sealing chip that consistently meet the specifications required of this product. With the benefit of our Barmac crushers we are able to supply sealing aggregates with exactly the right angular shape to maximise skid resistance and stay locked into the binder material.

Natural sand is becoming an increasingly depleted resource. Holcim has a sustainable solution in the form of manufactured sands. The result is a high quality fine aggregate that is an ideal solution for all concrete  and asphalt applications.

The Hastings Quarry is able to produce asphalt aggregates with the consistent particle size and angular shape to ensure the end product knits together tightly, fills all the voids and creates a smooth, even surface.

By removing much of the variability that accompanies natural products, we enable our customers to optimise their mix designs to get the best from the materials and, consequently, cost-effective concrete.

Holcim can provide a wide range of general quarry aggregates  for the market in order to match the specific requirements of our customers.  Products include non specified basecourse and drainage aggregates.

Mercer Sand is able to produce natural sand products to a range of grades in order to match the specific requirements of our customers.

Holcim can provide general quarry aggregates including non-specified drainage and landscaping aggregates including:

• Pumice sand which is ideal for mixing with soils or garden mixes to help with drainage
• Paving sand, a clean washed fine river sand suitable for paving finished levels prior to paver placement and for children's sand pits