Abstract
The main purpose of this research was to compare the mechanical and durability characteristics of different self-consolidating concretes (SCC) produced with no fine materials nor viscosity-modifying agents with the respective properties of normally vibrated concretes (NVC) currently being in production. SCCs are manufactured with a high volume of sand containing a large proportion of fines. Eight concretes of the categories C20/25, C25/30, C30/37, and C45/55 were produced. The mechanical properties measured were the compressive strength, the splitting tensile strength, and the static modulus of elasticity. Durability of all concretes was assessed by measuring the water absorption, the carbonation coefficient, and the chloride diffusion coefficient. The results indicated that SCCs presented slightly increased compressive strength values when compared to the NVCs of the same class. Modulus of elasticity and splitting tensile strength measurements showed similar values in both SCC and the respective NVC. SCC performed better than NVC regarding their water absorption. Carbonation resistance and chloride diffusion resistance were similar among SCC and NVC.
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