**6. Bentonite modified reinforced cement concrete**

Mirza et al. [14] played out a test on the R.C.C beam having a design load of around 40 kN with a three-point loading, load versus deflection plots shown in **Figure 11**. R.C.C beams were cast by using 20% bentonite, 25&40% (warmed at 150°C for 3 hours) bentonite with OPC. They detailed those lower ultimate strengths were seen in bentonite mixed cement beams.

**Figure 11.** *Load vs deflection curve of concrete and bentonite modified concrete.*
