High recycled-content cements for insitu concrete applications.
Contains supplementary cemetitious materials (SCM) made from post
industrial waste from steel manufacture and coal-fired electricity
BFS (Boral Formwork & Scaffolding) typically contributes to
the structural strength of the finished concrete. Applications
(normally 60MPA and below) may contain 15-20% of a combination of
BFS and flyash (or just flyash) as a default. This has been
industry practice for many years.
Recent experience has demonstrated that much higher quantities
of SCM (Supplementary Cementitius Materials) may be substituted
into concrete mixes. On the 60 Leicester St ' Green Building' up to
60% SCM displaced virgin cement in the insitu concrete without
adversely affecting stripping time or developed strength.
It has been demonstrated that the embodied energy of a slab can
be reduced by over 50% by partial substitution of cement with SCM
combined with the use of recycled steel reinforcement.
For optimal environmental outcome and further reductions to
embodied energy consideration should also be given, where
available, to the use of recycled aggregate.
The product is available in a number of
states - refer to website for details.
Information last verified 25th