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Lime-fly ash or lime-cement-fly ash combinations can be made use of to stabilise any type of sand, crushed rock, or combination of sand/gravel soil. These soils shouldn't consist mini piling contractors of greater than 12 percent penalties, and also their Plasticity Index shouldn't be greater than 25%. So stabilisation using LF or LCF is frequently acceptable for base as well as subbase course materials. Stabilization of dirt may be accomplished via mechanical, chemical, electrical, or thermal processes.