Kar, Arkamitra, Udaya B. Halabe, Indrajit Ray, and Avinash Unnikrishnan. 2013. “NONDESTRUCTIVE CHARACTERIZATIONS OF ALKALI ACTIVATED FLY ASH AND/OR SLAG CONCRETE”. European Scientific Journal, ESJ 9 (24). https://doi.org/10.19044/esj.2013.v9n24p%p.