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Lime-fly ash or lime-cement-fly ash combinations can be utilized to secure any kind of sand, gravel, or mix of sand/gravel soil. Take a look at the site here These dirts should not consist of more than 12 percent fines, and also their Plasticity Index shouldn't be more than 25%. So stabilisation making use of LF or LCF is often acceptable for base and subbase training course materials. Stablizing of soil may be attained via mechanical, chemical, electrical, or thermal processes.