EFFECT OF FLY ASH GEOPOLYMER CONTENT AND ALKALI RATIO ON SILTY SUBBASE SOIL COMPACTION AND STRENGTH. INTERNATIONAL JOURNAL OF GEOMATE [Internet]. 2026 Aug. 17 [cited 2026 Aug. 18];131(144):173-82. Available from: https://geomatejournal.com/geomate/article/view/5602