Precast concrete is a high quality and extremely versatile product manufactured in a controlled factory environment using advanced production techniques.
Precast concrete is available in a vast range of different sizes, shapes and finishes and it is used in a variety of applications, including buildings, bridges, infrastructure and landscaping.
To produce precast concrete components reinforcement is placed into re-useable and adjustable moulds, and concrete is poured, vibrated and cured. If specified, architectural finishes (such as honing, polishing or staining) may then be applied while still
in the factory. The finished precast components are then transported to site and then craned into position at site.
Why Use Precast?
Precast concrete provides significant benefits in terms of Quality, Design, Construction, Strength, Safety
and Sustainability. It doesn’t matter what angle you are coming at it from, precast offers substantial benefits to everybody involved in a project. The benefits available include:
- Dimensional accuracy – ability to achieve tight tolerances
- Speed of construction
- Reduction of on-site labour and on-site waste
- Reduction of on-site activity, noise, and disturbance
- Better life cycle cost
- Minimal maintenance
- Fire rated and non-combustible
- Acoustic insulation
- Thermal properties reduces lifetime energy costs
- Large spans available from pre-stressing
Precast’s many advantages are best incorporated into a project when an experienced precast designer is used from an early stage in the process.. This is normally undertaken by qualified
and experienced engineers, familiar with the relevant New Zealand Standards. Concrete NZ Precast members may also offer design input.
Precast concrete products are manufactured in specially-equipped factories, which are established in permanent locations.
Finished precast products are transported to site, ready for installation.
Products are then craned into place. Final products can range from sophisticated polished reconstructed granite wall facades to functional storm water drainage pits.
All design, manufacture, transportation, and construction activities must comply with relevant legislation.