Effect of sand gradation and fines type on the liquefaction behaviour of sand-fines mixtures
Equivalent granular void ratio and equivalent granular steady state line was used as the common basis for synthesizing test results. In isolating the influence of host sand, two sand-fines mixes with different host sand, but the same fines type and content, were tested. The influence of fines type was then investigated by testing Sydney sand mixed with three different types of fines. Scanning Electron Microscope (SEM) photography was also used to elucidate the role of angularity of fines. This led to the finding that the angularity of fines may need to be considered in determining equivalent granular void ratio.