Abstract
In order to study the mechanical performance of Engineered Cementitious Composites (ECCs) mixed with carbon black (CB), manufactured sand (MS), and polypropylene fiber (PPF), response surface methodology (RSM) was used to design the experiment, and three process variables including PPF content, fly ash content (FA), and CB content were selected as factors. The flexural strength, compressive strength, flexural-compressive ratio, and splitting tensile strength were used as four responses to study the mechanical performance. The prediction model indicates that there is a good correlation between the factors and the responses. Multiobjective optimization results show that the optimal content of the three factors is 2.4%, 58.48%, and 1.09%, respectively, for the carbon black, and manufactured sand of polypropylene fiber reinforced ECC development laid a foundation.
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