Recent content by HiHo1

It's what the engineer specced - probably OTT, not fair faced but is reinforced. But even if it is over engineered, surely there's a very big difference between 200kg opc/tonne and 400kg opc/tonne? Can't have it delivered (economically) as it has to be poured in stages as the blockwork...

Thanks, but I was talking about the numbers type tables....I can't seem to find any to help. With your 1:4 example, isn't that going to produce something more like C20? And also need the sand/aggregate ratios. I'm building a cantilever retaining wall, and the spec calls for C50 so need to...

Hello, could anyone point me in the direction of these? I need to mix up some C50/RC50. I think it's 400kg opc/tonne, but not sure about sand/aggregate ratios. And it would be useful too if there are any calculators or tables so I can work back from volume of castings required to weight of...