1. ACI 211.1-91, 2002. Standard practice for selecting proportions for normal, heavy weight and mass concrete, American Concrete Institute.
2. ACI 211.3R-02, 2009. Guide for selecting proportions for no-slump concrete, American Concrete Institute.
3. ACI 318-14, 2014. Building code requirement for structural concrete, American Concrete Institute.
4. Hollow concrete columns: review of structural behavior and new designs using GFRP reinforcement;AlAjarmeh;Eng. Struct.,2020
5. Structural behavior of prestressed SCC hollow core slabs;Al-Negheimish;Constr. Build. Mater.,2018