Application of Glass-Reinforced Alkali-Activated Olivine in Soil Stabilization
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The DOI number for this article will be assigned as soon as the final version of the IRECE Vol 15, No 4 (2024) issue will be available
Abstract
This research aims to determine if it is possible to use Olivine as a precursor in alkali activation procedures and mineral glass fibers as isolated reinforcing. Unconfined compressive strength tests were performed in order to determine the shear strengths of the treated and untreated soil samples. Furthermore, to assess the specimens’ strength and flexural strengths, indirect tensile tests were conducted in addition to the flexural strength testing. The results of this study has showed that adding mineral glass fiber reinforcement to alkali-activated blends made the fiber an effective candidate for the process, increases peak stresses and changes the post-peak behavior into one that is more ductile. Microstructural test results have revealed that while the surfaces of the glass fibers were rougher, the interaction between the surfaces of the glass fibers and alkali activation products increased and the mineral glass fibers did not completely disintegrate in the alkali media. After 90 days of being without reinforcement, reinforced mixes demonstrated an increase in compressive strength by 2.5 times in the Unconfined Compressive Strength (UCS) test findings.
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