The northern aggregate quarries are capable of producing material in substantial volume. The newest and largest quarry, Bombay, has a 13 million tonne deposit of high grade basalt 70 metres thick. Its primary production is about 400 tonnes per hour and its aggregate production around 250 tonnes per hour. Our products and locations...

Products
Roading Aggregate
Asphalt Aggregate
Concrete Aggregate
Sealing Aggregate
Specialised Products
Bluestone

Locations
Bombay Quarry
Waikato Quarry
North Shore Distribution Centre
Technical Department
Head Office

Shared Knowledge
Through our Holcim connections, we can not only take advantage of the experience gained by other aggregate operations around New Zealand we can also tap into the accumulated knowledge of aggregate producers in over seventy countries worldwide.

Quality Control
Holcim Aggregate’s fully equipped, IANZ accredited laboratory at Bombay Quarry provides the technical support for both the company aggregate production facilities (Bombay and Waikato quarries) and our external customers. The laboratory undertakes pre-production and in-process testing to support aggregate production process control, and finished product verification testing to ensure each product meets the desired specifications.

Customers have the added security of a product traceability system. Under our lot management procedure, each product stockpile is allocated a unique lot number which allows us to supply customers with a complete product test history.

In the case of Bombay Quarry, sophisticated computer technology controls the total production process, and aggregate blends can be made to precise individual specifications by simply keying in the required recipe.

Supply Continuity
For larger contracts in particular having an assured supply is essential. Holcim Aggregate works closely with customers to ensure that sufficient product is continuously available through its comprehensive sales forecasting and planning systems.

Convenience
In addition to the quarries, Holcim Aggregate operates a distribution centre on the North Shore. The site, conveniently located at Albany, can store temporary stockpiles for maintenance or minor construction and also handles specialist aggregate.

Products to Suit
While the range of products offered by Holcim Aggregate covers the majority of usages, we do have the ability to develop products to meet particular specifications for clients, where they are viable.

Environmental
Holcim Aggregate is careful to mitigate the effects of its operations on the surrounding environment. Measures taken within the quarry include re-cycling of waste oil, protective pads for vehicle servicing, inceptors for waste material and avoidance of spillage and weekly safety and environmental site inspections.

Product Overview
Holcim Aggregate’s extensive crushing, screening and associated plant enables us to produce high volumes and a wide variety of aggregate, especially for roading and concrete applications. Our range of products usually includes the following:

Roading Products
Subgrade	AP100 AP200 AP300 Clay Fill AP100 Crushed Concrete Basefill 20 Basefill 40 Basefill 65
Subbase	GAP20 GAP40 GAP65 GAP100 WHAP65 WHAP40
Basecourse	PAP40 PAP20 TNZ40 TNZ20
Sealing Chip Products
Impervious road chip coating which acts as the sacrafitic wear layer. Encompasses varying properties such as skid resistance, tyre wear, road noise reduction dependant on traffic load and road location.	Grade 2 Sealing Chip Grade 3 Sealing chip Grade 4 Sealing chip Grade 5 Sealing chip Grade 6 Sealing chip
Asphalt Material
Coating roads, footpaths and driveways to create an impervious layer	PAP7 GAP7 Grade 5 Chip 4mm washed Manufactured Sand
Concrete Material
Driveways, roads, bridges, houses, drainage systems …	PAP7 10mm Concrete Aggregate 20mm Concrete Aggregate Easycrete Quikcrete Mortar Masonry air vents Coastal resources sand East coast sand River sand Dune sand
Builders Mix	BM20 BM10
Drainage Material
	20-40 Drainage metal 40-60 Drainage metal TNZ F2 Scoria 25-7 Scoria 50-20 SAP7
Landscaping/ Decorative Rocks
	Basalt Boulders Scoria Boulders Walling Stone Pallet Stone Feature Stone
Sundry
	Topsoil Bark Masonry blocks