Abstract

The primary objective of the present study was the investigation of the usefulness or not of two-component water-soluble epoxy resin, alone or in combination with different quantities of bentonite, to improve the static and cyclic behavior of medium-fine sand. The effect of these resins on soil strengthening has not been properly investigated yet. The conduction of the experiments took place with the use of resin solutions having varying epoxy resin-to-water ratios. The impact of grouting on the static behavior of grouted sand was evaluated by performing unconfined compression tests on specimens prepared at different curing ages. Stress control mode at level of frequency of 1 Hz with varying load amplitudes was used to investigate the behavior of grouted sand subjected to cyclic type of loading. The study herein shows that the epoxy resins, especially when combined with bentonite, significantly improve the mechanical properties of the sand. In case successful grouting takes place, the foundation material could be stabilized using the resins above.

Keywords:

Bentonite, epoxy resin, grouting, strength,

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Competing interests

The authors have no competing interests.

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