Performance of concrete prepared with cp iv and cp v portland cements using the IPT/EPUSP dosage method: a case study

Abstract

The performance of concretes is strongly affected by the preparation methodology and by the constituent materials, so that an inadequate combination of processing parameters and materials can affect the performance of the concretes. The compositional variables include the type of cement and additions (such as slags and pozzolans), as well as the proportion of other constituents, such as coarse and fine aggregates, and the water/cement ratio. In this sense, mix design methodologies appear as tools to guide laborers in obtaining concretes with better physical-mechanical performance. Among the main Brazilian mix design methodologies, the IPT/EPUSP method has been well-accepted due to its versatility and simplicity. Thus, this work seeks to evaluate the influence of two types of Portland cement, CP IV (pozzolanic) and CP V ARI (high initial strength), on the mechanical properties of concrete dosed according to the IPT/EPUSP method. The results reveal that the obtained mix design diagrams allow correlating, succinctly, and effectively, the proportion of the materials with the desired mechanical properties for a specific application.