The aim of this paper is to analyze the influence of loading rate on the observed soil behaviour. To this aim, a series of suction-controlled triaxial tests has been performed on reconstituted specimens of pyroclastic silty sand, including isotropic compression stages and deviator stages performed at different stress-rate and strain-rate, respectively. During the isotropic compression stages the loading rates of 2, 8, 32, 128 kPa/h have been applied under several suction values (i.e. 15, 45 and 300 kPa). The drained deviator stages have been carried out at the same suctions levels under strain rates of 0.25 and 2.50 %/h. No effect of loading rate was registered during isotropic compression stage at low suction values (i.e. 15 and 45 kPa). At higher suction (i.e. 300 kPa), as the loading rate is increased the stiffness of the soil also increases, however, a loading rate value was identified from which an opposite trend was observed. For the strain rates studied on deviator stage, no effect was observed on the soil behaviour.