Influence of fibre type on unconfined compressive strength of fibre-reinforced cemented soil under freeze-thaw cycling
by Lina Xu; Lei Niu
International Journal of Materials and Product Technology (IJMPT), Vol. 65, No. 3, 2022

Abstract: In order to study the influence of the fibre type on the unconfined compressive strength of fibre-reinforced cemented soil under the freeze-thaw cycling, several experiments on freeze-thaw cycling and unconfined compressive strength were carried out, using fibre-reinforced cemented soil as the object. Specifically, basalt fibre and glass fibre with the content of 0.5% respectively by weight of soil, and the lengths of 3 mm, 6 mm, and 20 mm respectively were added to the cemented soil, which was cured for 28 d. The result shows that the unconfined compressive strength of these samples increased at first stage and then decreased as the length of fibre increased. Fibre in the cemented soil mitigated its strength loss under the freeze-thaw cycling. During the experiments, the glass fibre-reinforced cemented soil had a smaller strength loss, a higher peak strength and a smaller failure strain than the basalt fibre-reinforced cemented soil. Those findings can provide reference for the selection of reinforcing fibres for cemented soil under the freeze-thaw cycling.

Online publication date: Tue, 13-Sep-2022

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