Proposed Formulas for Estimating Splitting Tensile, Shear and Flexural Strengths, and Long Term Deflection Assessment of Self-Compacting Concrete Elements

摘要

This paper investigated the splitting tensile and shear strengths and the modulus of rupture of Self Compacting Concrete (SCC) elements with fly ash, micro silica and polycarboxylate ether superplasticizer for various grades and water-to-binder ratios. The immediate and long term deflections of SCC beams were also studied. Finally, the experimental values of the mechanical properties of SCC elements were compared to those computed using ACI-318 design code equations that were formulated for Normally Vibrated Concrete (NVC). The novelty of this study lies in the proposal of alternatives to ACI-318 design code formulas to account for the use of SCC in place of NVC. Moreover, the paper provides an assessment of the long term deflection of SCC beams.