Norte state (RN). What differed from one result to another was the value of the adjustment coefficient (x). Rios et al. (2013) showed that parameter x depends on the grain size and mineralogy of the soil. Baldovino et al. (2018) studied the treatment of the Guabirotuba geological formation soil (Paraná Basin, Brazil) by lime addition for improve its usability in pavement construction, in protection of hillsides and slopes, or as shallow foundation support. It was observed that the q t /q u ratio is between 0.17 and 0.2 in relation to the curing time, and an exponential relation exists between them. Baldovino et al. (2020b) optimized and compared the behavior of soil-cement compacted blends against several molding and climate conditions under optimum compaction and non-optimum compaction parameters. The results show an increase in strength and durability properties of the blends when cement Abstract Soil behavior is influenced by the void ratio and bonds between grains. The aim of this study was to describe the strength behavior of an aeolian sand from the dunes of Natal, Brazil, artificially cemented in unconfined compression tests. The influence of cement content and moisture on molding and the validity of using the void/cement factor in estimating unconfined compression strength (UCS) were assessed. Tests were conducted with samples using three molding moisture contents (6, 9 and 12%), four cement contents (2.5, 5.0, 7.5 and 10%) and a void ratio of 0.6 (D r = 95%). The results showed that unconfined compression strength rises with increase in cement content and decreasing in molding moisture. The void/cement factor proved to be a reliable parameter in predicting the behavior of sand from Natal for the dosage of soil cement.