Rebar in Circular Slab: Computes the length and weight of rebar in a circular slab based on the dimensions, spacing, number of mats, rebar size, rebar stick length and lapping factor.
Semi-circle Slab Volume: Computes the volume of concrete in a semicircular shaped slab based on the radius and the depth.
Semi-Circle Slab Weight: Computes the weight or mass of a semicircular shaped concrete slab based on the radius, the depth and mean density of concrete.