Spread footing is called as isolated or column footing. They are used to support individual columns. They can be of stepped type or provided with projections in the concrete base. Main reinforcement is placed at the bottom. In case of heavily loaded columns reinforcement is provided in both the directions in the concrete bed. The concrete mix is based on the strength requirement. In general 1:2:4 mix is used. Generally 15 cm offset is provided on all sides of the concrete bed. In case of brick masonry columns an offset of 5 cm is provided.
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