2019 CSCE Annual Conference - Laval (Greater Montreal) Conference
Dr. Ahmed Soliman, Concordia University
This study investigates the effect of single, binary and ternary combinations of slag, fly ash and silica fume precursor materials on workability and mechanical properties of various alkali-activated self-consolidating concrete (AASCC) mixtures. Fresh and mechanical properties including L-Box, inverted slump test, compressive and tensile strengths, and modulus of elasticity were evaluated for all mixtures. Moreover, representative samples from optimal mixtures were examined using differential scanning calorimetry (DSC), scanning electron microscope (SEM) and X-ray diffraction (XRD). Results indicated that AASCC can be produced with high-volume composite binders and achieved an acceptable fresh and hardened characteristics.
Keywords: Alkali-activated concrete, self-consolidating concrete, workability, SEM