In black cotton soil, quality work in building the foundation can be realized when soil investigation is conducted and the trail pits results can determine the foundation design which shall be in accordance to the soil capability
The recommended typesof foundation designs for black cotton soil include – the reinforced concrete
with slab for shallow, strip or raft foundations and Pile foundation for deep
foundations.
The swelling and
shrinkage in black cotton soil around the built foundation walls can be
isolated by consolidating a 20cm wide space at either sides of the foundation
walls with hard core and 30cm space from the bottom.
Quality is achieved by
the building practitioner through competency and sequential process in applying
procedures of work.
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