As previously mentioned, there are six requirements that a material has to reasonably satisfy in order for it to qualify as an effective GIM. Bentonite can bind together huge amount of soil in the presence of moisture which is why it was extensively used for soil stabilization by means of grouting. Therefore, the first requirement was fulfilled. Bentonite is also insignificantly corrosive even for a long period of time [2], [13]. In fact, Bentonite is even used in cathodic protection of steel in concrete [50].