Questions about: rebar

Once the fabrication of the structure is finished we can now move onto the foundations. This is when marking out becomes a fine art. Good plans
just bought a house where we've got an existing concrete slab porch that is 12" above the adjoining sidewalk and it does not have a step. We want to add in a large 6" tall x 3' wide x 11' long slab that will act both as the new step to the porch and
Most inspectors will allow 3" dobbies, but really you should use 3" chairs to keep the rebar 3" clear off the bottom and sides. (The reason your engineer specified 3" is because of moisture protection and chairs allows less moisture than dobbies. ) I
Install your fence posts. Use a long string to mark a straight line for your posts and use a post-hole digger to set them securely in the ground. As a general rule of thumb, there should be as much post in the ground as there is to the top of the top
Suspended slab under construction, with the formwork still in place. Suspended slab formwork and rebar in place, ready for concrete pour. On reinforced concrete blockwork supporting walls