The modulus of elasticity (E50) is the essential parameter in the soil settlement calculation as shown in Table 6. The results showed that E50 for all stabilized soil samples increased with curing time and CBA10 had the highest modulus of all the mixtures and all curing time. At 28 D, the mixtures CBA10–CBA50 had a E50 value greater than CBA0 had the lowest. This result was similar to the strength characteristic development and relationship between UCS and E50 as shown in Figure 3.