Lime Treatment of Coal Bottom Ash for Use in Road Pavements: Application to El Jadida Zone in Morocco.

摘要: Industrial waste causes environmental, economic, and social problems. In Morocco, the Jorf Lasfar Thermal Power Station produces two types of coal ash with enormous quantities: fly (FA) Bottom (BA). FA is recovered in cement while BA stored landfills. To reduce effects disposal landfills, several experimental studies have tested possibility their recovery road construction, especially as a subbase. first phase this study, underwent physicochemical geotechnical characterization. The results obtained show that should be treated to improve its mechanical properties. most commonly used materials are lime cement. selected low-cost treatment, which subject second low pozzolanicity calcarenite sand increase compactness. Several mixtures containing BA, lime, were prepared. Each these was compacted modified Proctor molds then subjected series tests study following characteristics: compressive strength, dry wet California Bearing Ratio (CBR), density swelling. composition each mixture based on an design approach. values density, CBR index increased after potentially leading valorization for use