1. 1) ACI 318M-08, (2008). “Building code requirements for structural concrete (ACI 318M-08) and Commentary.” Reported by ACI Committee 318. American Concrete Institute. Farming Hills, MI 48331, U.S.A.
2. 2) Adam, A. A., (2009). “Strength and durability properties of alkali-activated slag and fly ash-based geopolymer concrete.” Dissertation. School of Civil, Environment and Chemical Engineering, RMIT University, Melbourne, Australia.
3. 3) ASTM C597-02, (2003). “Standard test method for pulse velocity through concrete.” ASTM International, USA.
4. 4) ASTM C642-97, (2003). “Standard test method for density, absorption, and voids in hardened concrete.” ASTM International, USA.
5. 5) AS 1012.9, (1999). “Methods of testing concrete. Method 9: Determination of the compressive strength of concrete specimens.” Australian Standard Association, Australia.