The standardized requirements recommend carrying out durability tests after 7 and 28 days of the binding process. The research conducted on concretes showed that durability strength increases even in the length of a few years. As far as soil-cements are concerned, the increase in compressive strength after 28 day binding can be the cause of the sensitivity of road foundation without dilatations to contractile cracking. The aim of the research in focus was evaluating the compressive strength of soil stabilized with different types of cement at standardized period and after a year-period of binding. The research proved a significant increase of soil-cements after a year of binding as compared with standardized durability values.

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