Using pond ash in place of sand, this study assesses concrete's compressive strength and resistance against acid, chloride and sulphate attacks. The pond ash replacement levels were 10%, 20%, 30%, 40% and 50%. The compressive strength of different grades of concrete was tested at 7, 28, 56 and 90 days using cubical specimens. The resistance of concrete against chemical solutions such as hydrochloric acid, magnesium sulphate and sodium chloride was evaluated at 28 and 56 days. The results obtained from the specimens with pond ash were compared with a specimen without pond ash. As expected, the concrete's compressive strength increased with age and its performance against adverse environmental conditions was satisfactory.