The average UCS strength for three samples of treated soil for different curing times is shown in Table 4 and Figure 3. Comparison of the compressive strength data for 7, 14, and 28 days of curing times shows that the compressive strength increases. At 7 D, the control strength of CBA0 (only OPC content) produced the greatest soil strength and this decreased with an increase in the BA substitution content. At 28 d, some mixtures with an BA content (CBA20 and CBA30) had a higher strength than CBA0, with CBA20 producing the highest compressive strength whereas the CBA50 sample had the lowest. The proposed equations for strength prediction with curing time had high coefficients of determination and are presented in Table 5.