Shear behavior of full-scale high volume fly ash-self consolidating concrete (HVFA-SCC) beams: Fid-Bau Portal

Shear behavior of full-scale high volume fly ash-self consolidating concrete (HVFA-SCC) beams

Alghazali, Hayder H. / Myers, John J.

Highlights•Concrete mixtures with different cement replacement levels were developed.•Full-scale beams were constructed with HVFA-SCC and tested under shear.•Behavior was investigated in terms of cracking and ultimate shear, deflection, crack pattern, and mode of failure.•Analytical prediction was compared with the experimental results.•Experimental results were compared to conventional concrete test results study and database.

AbstractAn experimental test was carried out to investigate the shear behavior of full-scale beams constructed with high volume fly ash self-consolidating concrete (HVFA-SCC). HVFA-SCC is a new concrete grade of HVFA concrete with the rheology of self-consolidating concrete that satisfies the quality of construction work, environment aspects, and concrete sustainability. Mixes with different cement replacement levels of fly ash and hydrated lime [50%, 60%, and 70% (by weight)] were used. Twelve full-scale reinforced concrete beams were cast and tested using a four-point load test setup. This study focused on observing the effect of factors such as cement replacement level, longitudinal reinforcement ratio, and shear reinforcement ratio on the beam shear behavior. All beams were 4000mm (13ft) in length, 457mm (18in.) in thickness, and 305mm (12in.) in width. Rheological and mechanical properties of the mixes were monitored. During testing, cracking and ultimate shear, deflection, crack pattern, and mode of failure were recorded. Furthermore, test results were compared to conventional concrete study, finite element modeling, and database of conventional concrete and self-consolidating concrete.