Fiber and Fly Ash Stabilization Methods to Treat Soft Expansive .Apr 26, 2012 . Fly ash and polypropylene fibers were evaluated in these studies. Two different expansive soil types were used as control soils. Both methods.fly ash propylene,A Comprehensive Study of the Polypropylene Fiber Reinforced Fly .Jan 25, 2016 . A comparison of an alkali activated fly ash and a Portland cement based mortars indicated a high shrinkage stability of the fly ash based.
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