I'm not sure if this is in the correct forum, it seemed the best one for the subject!
I am building a brick barbie and I want to cast a slab over the top of it. I'll then build another few coarses of brickwork to take the grill etc. I really need to know how to go about it. I know I need to build a wooden frame to cast the slab into, but I need to know exactly what I need to with regards to concrete mix etc. What ratio of cement/sharp sand/balast to use, what king of re-bar to use inside, if any etc. The approximate dimensions it needs to be is 600mm x 1600mm and it probably needs to be about 80mm thick.
Thanks in advance!
Here's a pic of the base I want to cast it onto:
I am building a brick barbie and I want to cast a slab over the top of it. I'll then build another few coarses of brickwork to take the grill etc. I really need to know how to go about it. I know I need to build a wooden frame to cast the slab into, but I need to know exactly what I need to with regards to concrete mix etc. What ratio of cement/sharp sand/balast to use, what king of re-bar to use inside, if any etc. The approximate dimensions it needs to be is 600mm x 1600mm and it probably needs to be about 80mm thick.
Thanks in advance!
Here's a pic of the base I want to cast it onto: