Durability of Igbokoda Clay and Silica Sand as a Synthetic Moulding Sand
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Mechanical test experiments have been
performed on the synthetic mould sand made
from the clay and silica sand obtained from
lgbokoda in Ondo State, Nigef1a, to determine
its durability of use. The synthetic moulding
sand was further admixed with sodium
carbonate, cassava flour and coal dust
additives in an attempt to enhance the clay
bonding properties. After each casting, the
synthetic moulding sand was re-used and this
was repeated several times. This paper reports
the result of the mechanical properties obtained
and hence the durability of the synthetic
moulding sand. The results showed that the
lgbokoda clay-bonded-silica sand has very good
durability up to five times re-use. There was
improved mechanical properties/durability when
the additives were used. Castings made during
the experimental period were sound. The
additives gave improved bonding property
Keywords
TJ Mechanical engineering and machinery