Description:
Curiosa rule for calculating reinforced concrete beams. It is a rule of the brand L. Soldevila. It consists of a single movement inside vernier. It is designed to calculate the height in cm of a concrete beam and its corresponding section of iron in cm2. He includes the table of the most common iron rods, the widths of cm. On the back of the rule it included a list of 48 types of concrete cement, classified into four groups: dry, plastics, soft and fluid. Similarly it has done with eight types of cement mortars. It comes complete with a table of square columns of reinforced concrete and the resulting tension hormigón.Datos personal opinions provided here are not proven.
882 - Pair rule calculating reinforced concrete beams. L...