TY - JOUR AU - Jonathan R. Dungca, AU - Kimberly D. Ang, AU - Aila Mae L. Isaac, AU - John Joshua R. Joven, AU - Ma. Beatrice T. Sollano, PY - 2019/01/10 Y2 - 2024/03/28 TI - USE OF DRY MIXING METHOD IN FLY ASH BASED GEOPOLYMER AS A STABILIZER FOR DREDGED SOIL JF - GEOMATE Journal JA - INTERNATIONAL JOURNAL OF GEOMATE VL - 16 IS - 57 SE - Articles DO - UR - https://geomatejournal.com/geomate/article/view/2791 SP - 9-14 AB - <p>This study aims to improve the properties of dredged soil obtained from a river in the Philippines. <br>Different percentages of fly-ash based geopolymer, namely 10%, 20%, 30% were used using a dry mixing <br>method to determine the optimum mix. The procedures based on the ASTM standards were conducted to <br>determine the index properties namely Grain Size Distribution Curve (ASTM D422), Specific Gravity (ASTM <br>D854), Atterberg’s Limits (D4318), and CBR Test (ASTM D1833) and UCS test (ASTM D2166) of untreated <br>soil. While only the California Bearing Ratio Test and UCS test were conducted on the treated soil. The <br>experimental results showed that the fly-ash based geopolymer improved both the CBR index and the <br>Unconfined Compression Strength of the dredged soil. The optimum mix for the soil-geopolymer mix was <br>30% because it displayed the largest increase in the CBR index (50.23%) and Unconfined Compressive <br>Strength (912.88 Kpa).</p> ER -