Normal Class Concrete
For every-day applications:
Manufactured to AS1379
20MPa, 25MPa, 32MPa, 40MPa and 50MPa
10mm and 20mm
A simple measure of concrete workability:
80mm +/- 15mm as standard.
Can be specified to suit your job.
Special Class Concrete
Manufactured for specific applications or properties:
Kerb and Gutter
- Manufactured specifically for slip form machine placement.
- Adheres to local council and RMS specifications.
Early Strength Concretes
Generally specified at slumps of 140mm+ to achieve a high quality off-form finish, precast concrete can be designed to achieve early age strength to meet specific lifting requirements.
Post Tensioned Concrete
Generally used in suspended slab work to meet early age strength requirements. The concrete is generally ordered at 22MPa @ 4 days or 5 days.
Concrete can be specified with a flexural requirement as well as a compressive strength. Most often specified for high load, high wear applications.
Fibre Reinforced Concrete
Steel fibres or poly fibres can be added to the concrete mix design to assist with minimising early age concrete cracking and to reduce the permeability of the concrete.
No Fines Concrete
Made for drainage applications the concrete is designed without fine aggregates to make the concrete permeable so fluids can flow through the concrete.
- Includes concrete designed for applications such as Piling, Stabilised Thermal Backfill for encasing power cables, filling Masonry blocks, Tremie work and structural concrete for bridge work
- The concrete is usually designed to be super flowable through the addition of specialised super-plasticising admixtures generally in combination with low water binder ratios to achieve high early compressive strength and good off form finish characteristics.
Sprayed Concrete / Poolmix
Commonly used to form the shell of a concrete swimming pool and the walls and ceiling of underground tunnels. Commonly specified as a high strength concrete using small aggregates (e.g. 32MPa 7mm), the desirable traits include adhesiveness, the ability to stand-up on contact and to achieve its initial set more quickly than normal class concretes
Coloured oxide is added at the concrete batch plant and mixed through the concrete in the manufacturing process.
If you are considering coloured concrete it is advisable to talk to our staff who can provide advice on getting the best results for your project.
Exposed Aggregate Concrete
- The concrete paste on the surface of the concrete is washed off before the concrete is fully set to “expose” the course aggregate on the surface.
- Decorative aggregates, such as Basalt, Marangaroo Quartz, Rhyloite and round river gravel can be used either straight or in combination to achieve a desired effect.
- Coloured oxide can be added to the mix to pigment the concrete paste to create different effects.
- Some exposed aggregate concretes, particularly those using crushed rock, are used to improve slip resistance, particularly in driveways and paths.
- The process of polishing concrete involves diamond grinding the concrete to allow the stone to show on the surface of the concrete.
- Surface densifiers and sealers are used to improve the durability and wear properties. The finished product generally has a smooth glossy surface.
- If you are considering a polished finish we recommend you contact our Technical and Quality Manager for advice.
- A pattern is literally stamped into the concrete while is still workable using moulds.
- The moulds often are shaped to look like pavers, rock work, masonry or timber.
- An oxide colouring is used to make the finished product look more natural.
- A pattern is taped onto the surface of the concrete while is still workable.
- Colouring oxides are then applied to the concrete which provides a contrasting pattern when the stencil is removed.
- The patterns are often take the form of brick work or pavers, and are often used to highlight driveway edges or create detailed centrepieces.