Abstract

The authors have carried out an international collaborative study on the influence of different molding techniques for preparation of specimens since the DM2009 Okinawa conference. As part of this international collaborative study, it was designed a new laboratory test program aim-ing to study the effects of soil type and binder type in various regions and countries on stabilized soil strength. This collaborative study has been undertaken in five organizations, where the la-boratory mix tests were carried out on regional soils with regional and no regional binders, i.e., some of the regional binders were exported to the other organizations for the tests. The soil and binder mixtures with different initial water content and amount of binder were subjected to un-confined compression tests to investigate the effects of soil and binder types on stabilized soil strength. It can be found that the unconfined compressive strength decreases rapidly with the W/C ratio irrespective of types of soil and binder and the SAC ratio of binder seems to be a factor on the binder type effect on the stabilized soil strength. In this paper, the laboratory tests results are briefly presented.