Precast products can de divided into 10 main types:
- Architectural cladding
- Cast stone and other decorative items
- Drainage - including pipes, culverts and manholes
- Flooring - including beam and block and hollowcore
- Masonry - including blocks and walling
- Paving, landscaping and street furniture
- Piles and foundations
- Railway-specific products
- Roof tiles
- Structural - including beams, columns and panels.
Concrete Credentials: Sustainability, MPA - The Concrete
||Recycling systems capture virtually all process water, slurry,
aggregates or cement and these are re-used in the production
process. 85% of the water produced by the precast sector is
recycled or re-used.
||25% of aggregates used in the precast sector are recycled or
from secondary sources. The sector has set a target to increased
the use of additional cementitious materials to 25% Precast
products can often be re-used in thier entirety.
||The precast concrete sector uses more water than it produces. A
tonne of precast product uses 218 kilogrammes of secondary
materials and by-products and produces only 6 kilogrammes of waste
that goes to landfill. Concrete buildings can be designed with less
finishes, reducing the associated material waste.
||Dependency on mains water supplies is being drastically reduced
across the industry as companies adopt recycling systems and
alternative water sources, such as rainwater harvesting. 180 litres
of water are used per tonne of precast concrete product, 36% of
which is from licensed non-mains sources. Water-reducing admixtures
also minimise water use.
||Companies with factories in more rurual areas are increasingly
committed to protecting and enhancing the natural environment. A
site in Yorkshire was the first manufacturing site to attain The
Wildlife Trust's 'Biodiversity Benchmark'.
|Health and safety
||The comprehensive British Precast health and safety scheme
(CT2010) has helped members reduce their overall incidence rates by
two thirds, compared to 2000. Admixtures are used to produce
self-compacting concrete which does not require vibration, leading
to quieter working environments.