if 100 cubic meters of concrete plus retarder requires a retarding time of 6 hours, how much retarder should be used?
the dosage of retarder should be determined based on experiments. for example: calculated based on four ten thousandths of the cementitious material, assuming 400*0.0004=0.16kg/m3then 100 cubic meters of concrete requires 0.16*100=16kg p>four ten thousandths? what kind of cement, what kind of retarder, what kind of mix ratiocan you draw conclusions without even knowing it? i…
