Lower carbon, lower cost:
the future of concrete
By Robyn Grimsley
As one of the most widely used materials on the planet, concrete presents an ideal opportunity for the
industry to minimise its environmental impact.
The Portside Tower is Cape Town’s tallest — and ‘greenest’ — building,
with up to 85% substitution of cement with slag waste.
24 _ QUARRY SA | SEPTEMBER 2017