Abstract: To explore the significance and shortcomings of an environment-friendly binder using powder typed activators, 16 alkali-activated (AA) cementless mortars and a control ordinary Portland cement (OPC) mortar were mixed, cured ...

Abstract: A simplified strut-and-tie model including size effect based on the crack band theory is proposed to evaluate the shear capacity of deep beams. Concrete struts are idealized as uniformly tapered prismatic members with a ...

Abstract: This study examined the effects of the unit weight of concrete (ωc) on the flexural performance of shear walls with different amounts (Ash) of transverse reinforcement in the boundary elements. Six shear wall specimens ...

Abstract: Fifteen hwangtoh-based alkali-activated concrete mixes were tested to explore the significance and limitations of the development of cementless concrete without carbon dioxide emissions while maintaining various beneficial ...

Abstract: The objective of this study is to propose reliable models to assess the unrestrained and restrained shrinkage strains of lightweight concrete prepared using bottom ash aggregates and air foam (LWC-BF), on the basis of the ...

Abstract: Sewer concrete structures are vulnerable to acidic corrosion due to the biological oxidation of sulfide in the wastewater to sulfuric acid. The use of photosynthetic bacteria in the coating layer on the sewer concrete is ...

Abstract: The water content and lightweight aggregate proportions in lightweight alkali-activated (AA) concrete need to be carefully managed to control the quick slump loss of fresh concrete and to meet the mechanical properties ...

Abstract: To evaluate the effects of beam specimen depth and aggregate size on the fracture energy of lightweight concrete (LWC), different beam specimens designated into 32 notations were tested under three-point bending. In each ...