I have been looking at concrete walls for my new home and come across the foam form blocks like zego and eco bloc which loo ok as they are quick & easy to lay and you fill them with concrete and end up with a nice solid wall. I also came across the boral connex blocks which are similar except the form blocks are masonry and also filled with concrete so in my mind they seem stronger.
Does anyone have any experience with the cost of these, ease of build and the thermal properties of having such a wall? good thing is i can also use them for the retaining wall in the house (one story front 2 story rear house) and then create a concrete floor between levels which will help with reducing noise.