Benefits of Precast

Applications

Significant cost savings are realised through areas such as:

  • Manufacture of precast elements concurrent with commencement of early site work.
  • Expedited construction
  • Reduce time on site
  • Reduces site defects
  • Reduces propping and scaffolding costs
  • Lower site labour cost
  • Reduce plant, amenities, tools and materials storage on site.
  • Minimise finance cost resulting from reduced build time.
  • Earlier revenue receipts because of shorter project times.
  • Once precast installation starts, on-site construction and off-site manufacturing can be overlapped, thereby reducing overall site construction time.
  • The continued, uninterrupted erection of precast structural components lends itself perfectly to fast track construction schedules.
  • Installation incorporates the latest in connection technology, and can proceed swiftly and safely in almost any weather by expert erectors.
  • Concrete curing time will not affect project time. Most precast products are trafficable after installation.

Meeting OH&S Requirements and Contribute to On Site Safety

  • Most precast products are accessible and trafficable providing safe access to the next part of the construction site.
  • Less onsite labour
  • Onsite trades, labour and their associated activities are minimised
  • Fire resistant
  • Most precast products are installed directly from the truck into position without the need for scaffolding
  • Safety can be improved onsite with less workers, equipment and material reducing site congestion.

Durable

  • Precast concrete allows increased accuracy and consistent placement of reinforcement when compared to insitu construction. The accurate placement of reinforcement in precast concrete provides the same level of durability with nominal covers 5-10 mm less than are required with insitu construction.
  • Precast offers the advantage of placing mature concrete into its in-service environment and loading. This benefit ensures that the concrete is at its best when exposed to aggressive loads. This is in comparison to insitu concrete which ages in the aggressive environment and is unable to immediately carry design loads. Insitu concrete therefore requires propping and time to age to avoid creep under design load at early age causing permanent deflection in the structure.

Reduced Environmental Impact

  • Recycled supplementary cementitous materials such us fly ash and blast furnace slag, silica fume, recycle aggregates and grey water can be incorporated into precast concrete. This diverts materials from landfill, reducing use of virgin materials and the overall environmental burden.
  • On site, precast construction reduces air pollution, noise and debris.
  • The high-quality finish of precast concrete means that it can be left untreated and exposed, maximising concrete’s thermal mass benefits and to contribute to green energy-management solutions.
  • Controlled management of waste with production of precast concrete. Tight control of quantities of constituent material and precise mix proportions mean optimum use of material.
  • Standard precast building elements are manufactured in moulds that are re-used many times.
  • Any waste materials are more readily recycled because production is in one location.
  • Site waste is also reduced as only the finished elements are delivered to the construction site.

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