Australian Living has recently laid the first Australian residential concrete slabs to use Envirocrete with 60 per cent cement reduction.

Recycled steel reinforcement was supplied by OneSteel Reinforcing.

"It's fantastic that, through Australian Living's Eco-Challenge project, Boral is able to showcase and promote Envirocrete as a sustainable concrete that can be adapted to suit different customer requirements," says Bob Bornstein from Boral Concrete.

The Envirocrete that Boral supplied uses over 60 per cent cement replacement and over 20 per cent aggregate replacement with waste/recycled materials. When combined with recycled water there is over 30 per cent total recycled content in the concrete.

For every 10 cubic metres of Envirocrete supplied to Australian Living's Eco-Challenge development, greenhouse gas emissions are reduced by over 1.2t, compared to regular cement.

Australian Living also decided not to use bricks in constructing the walls for the four Eco-Challenge homes at Rose Bay, instead preferring to use Ritek's sustainable wall system.

"We decided to proceed with the Ritek Wall System because we could design the homes with a single skin structural wall that when combined with Boral Envirocrete and One Steel Reinforcing we would achieve a new solution that has a high content of recyclability," says Cameron Rosen, owner of Australian Living.