Forming arches over doors and windows. We first apply a 2 inch shell of light weight concrete on the form work and then pour a hard layer on top of this with 2 X 3/8" bar in the arched shape. |
Catenary garage in Mexico. This is being built with pumice blocks laid against movable formwork. No rebar or iron reinforcing is being used above floor level. The building is self supporting without vertical concrete columns. |
