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Utilization of poorly graded aggregates in concrete mixes, by B. K.
Sengupta & F.E Phiri, Zambia Journal of Science and Technology, Vol.2, no.4,
October 1997, Pg. 8-16.
Properly graded aggregates are not likely to be available in many areas of
Zambia and therefore the possibility of utilizing poorly graded aggregates for
concrete was investigated. Poorly graded aggregates were used in designing
concrete mixes by extrapolating on the mix design data of the American Concrete
Institute and, in general, concrete with satisfactory strength and workability
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