Just watched this week's episode, where the eco-punters were using environmentally friendly materials to build their dream house... when I tuned in, their builders were busy learning how to use 'limecrete' (lime-based concrete) to make the slab, and making a complete balls of it since it took weeks to set, in the middle of a freezing Welsh winter...
I'm just curious (having missed the start) - why is it so much more environmentally friendly to use lime-based concrete? I think they said the floor slab cost a whopping £15K MORE than the equivalent in conventional concrete. Wow, is all I can say.
David