Wipula, W. k. Improvement of engineering characteristics of poor quality soil by mixing with bottom ash - Galle University of Ruhuna, Department of Civil and Environmental Engineering 2022 - [xi], 68 p. University Of Ruhuna Subjects--Topical Terms: MASTERS THESISSOIL MECHANICSCIVIL ENGINEERINGSOIL ENGINEERINGSOIL QUALITYBOTTOM ASH