Research

Stabilized road gravel was tested to compare with that of unaltered raod gravel. " California bearing ratio (CBR), resilient modulus (M_r) , and unconfined compression (q_u) tests were conducted on road surface gravel alone and the fly-ash stabilized road surface gravel samples prepared in the field to evaluate how addition of fly ash improved strength and stiffness.  After 7 days of curing, the stabilized road surface gravel compacted in the field from a field-mix sample had CBR ranging between 48 and 90, M_r between 96 and 125 MPa, and q_u between 197 and 812 kPa, whereas the road surface gravel alone had CBR of 24, and M_r of 51 Mpa."