1. ASCE
(2013). ASCE Report Card American Society of Civil Engineers Reston VA.
2. ASTM C33 (2016a). Standard Specification for Concrete Aggregates West Conshohocken PA: ASTM International.
3. ASTM C39 (2016b). Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens West Conshohocken PA: ASTM International.
4. ASTM C150 (2016c). Standard Specification for Portland Cement West Conshohocken PA: ASTM International.
5. ASTM C494 (2015a). Standard Specification for Chemical Admixtures for Concrete West Conshohocken PA: ASTM International.