“…In the second approach, the effects of cementation are quantified indirectly through the analysis of the mechanical behaviour. In this case, the behaviour of the untreated soil is usually taken as a reference (e.g., [36,37,38]). For example, the results from triaxial tests were interpreted using the stress-dilatancy theory [39,40] by Wang et al [41] to compare the mechanical behaviour between biocemented and cement-treated sand.…”