1. ASTM C 39-12 Standard, ASTM, (2012).
2. ASRM C 1609-10 Standard, ASTM, (2010).
3. Abid A. Shah and Y. Ribakov, The journal of Material and Design, (2011).
4. P.S. Song and S. Hwang, Construction and Building Materials, (2004).
5. Y.I. Kim et al, Journal of the Korea Institute of Building Construction, (2008).