EFFECT OF USED GROUND COPPER SLAG IN PROPERTIES OF CONCRETE DESIGN

Application of mineral, agricultural and industrial wastes in concrete manufacturing are
being popular and most have proved to be beneficial in enhancing the characteristics of
concrete. Used Copper Slag is an industrial waste that is hazardous in nature and its safe and
legal dispose is an issue. The earlier research found that used copper slag on concrete was
quite encouraging and behaves as a good pozzolan and as a cement replacement. For this
project, 5% to 30% of copper slag had been tested as cement replacement up to 120 days to
obtain the behavior and effect of the copper slag in strength and durability due to percentage
of copper used and ages. Compressive and split tensile tests are tested to define the strength,
while porosity is tested to defme the durability. Result shows that it develops strength over a
longer period, leading to reduce porosity and better durability. The reliability and consistency
of the three (3) tests shows that 10% of copper slag as cement replacement is the maximum
value for optimum strength and durability of concrete can be achieved.