This work investigated the effects of bentonite, cassava starch,
and yam starch binders on foundry moulding sand. The three
binders were applied separately to River Niger bank silica sand
in different proportions. The effects of these various additions
on foundry moulding sand were investigated by conducting
out various tests as permeability, moisture content, green
compressive strength, dry compressive strength, mouldability,
shatter index as well as the AFS of the sand. The results showed
that bentonite had better binding characteristics as compared to
cassava starch and yam starch. The green and dry compressive
strength of the three binder’s increases as the percentage binder
addition increased. Mouldability of the three binders on the sand
equally increases as the percentage binder additions increases.
Permeability and shatter index for the three binders decreased as
the quantity of binder increased. The sieves analysis results with
AFS number 45 shows that the grain fineness index falls within
the acceptable range which is suitable for foundry application.
Real Time Impact Factor:
Pending
Author Name: TO Joshua, OSI Fayomi*, FH Olatuja
URL: View PDF
Keywords: Bentonite, Cassava starch, Yam starch, Moulding properties, Silica sand
ISSN: 2059-5026
EISSN:
EOI/DOI: https://doi.org/10.24218/jnat.
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