**3.2 Initial and final setting time**

Generally, Initial & final setting time tests will be performed as per standard procedure IS 4031. Upon testing, bentonite displays 68 and 190 minutes where shown OPC 43 and 125 minutes after expansion with water [15]. Beginning and last setting times expanding by expansion bentonite to solidify. The expansion of bentonite to the concrete mortar upgrades the yield pressure of new concrete mortar [22].
