WASET
    O. M. Omar and  G. D. Abd Elhameed and  A. M. Heniegal H. A. Mohamadien,  Effect of Crashed Stone on Properties of Fly Ash Based-Geopolymer Concrete with Local Alkaline Activator in Egypt.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    October 2015, vol. 106(10). 1357 - 1366
    [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/10002928.