Hi

If you use fibre flakes in the concrete mix it will reduce cracking and you can use much less concrete. - around 15 -25% less.

Also look at Limecrete / Lime Crete.

Ric

So far looking into those has revealed a couple of mayor issues with them;

Only useful for slabs laying slabs flat on something, not any good for ones needing to support themselves, or on their side, as they are prone to collapse! (Suggestion has been to use them along with steel rebar.)

Reports of them rotting in the concrete and turning to mush.

Thanks very much bringing limecrete to my attention, that looks (Yet another!) one to research into.

(For anyone else interested, some info here about it.)
http://www.oldhousestore.co.uk/tech_ohs/limecrete.html

It reminds me in part of Roller Compacted Concrete, I wonder how if it can be made waterproofed ?

Hi

the fibre that people are now using is plastic - polyetherlene I think - check plastic type. Polyethelene is a non toxic -goodish /greenish plasic

Check out Famescape and Profiile 6 for interesting concrete and plastic fibre roof sheeting as well.

I'm leaning as much as u are, so your links and thoughts are also v useful for me

thx

ric

Finding it difficult to locate Famescape, any links to it ?

I also find the forum here a useful source of information. (Even though its based in the US.)
http://bbs.monolithic.com

These are the manufacturers of Farmscape and Profile 6 roof sheeting.

It got an A rating on a BRE eco test despite being made from cerment - seems quite impressive
http://www.marleyeternit.co.uk/
http://www.marleyeternit.co.uk/products/Products/ProductDetails.aspx?pcat=2&pcatname=Profiled+Sheeting&rangeid=11&rangename=Farmscape&pid=10&prodname=Farmscape



I liked the monolith website - I've looked at it before, their building system and style are definately not for me however I really liked their water filter:-
http://static.monolithic.com/edcircle/waterfilter/backorder/index.html

It looks like the best and cheapest solution I've ever seem.

Ric