Optimal Amount of Flag and Fly Ash in Steel Fiber Reinforced Concrete

Qingfang ZHANG


This experiment research adopts ordinary portland cement with the strength grade of 42.5, mixed it with slag, fly ash and water reducing agent to prepare C40 steel fiber reinforced concrete (SFRC). Via observing the compressive strength changes of steel fiber reinforced concrete when different amount of steel fiber, slag and fly ash were mixed, reasonable amount of steel fiber was determined with the maximum compressive strength of concrete. As a result, as concentrations of minerals and sand ratio changed, the compressive strength of concrete varied regularly. In addition, when the strength was maximum, the amount of steel fiber proved to be constant with the value of 1.4%.


Slag; Fly ash; Water reducing agent; Compressive strength; Reasonable amount of steel fiber

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DOI: http://dx.doi.org/10.3968/4351

DOI (PDF): http://dx.doi.org/10.3968/g6147


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