ABSTRACT

The concrete specimens are immersed in a solution of sulphuric acid in water and in a solution of acetic and lactic acid. The mass loss as well as the strength loss of the specimens is measured. The following para meters are studied: SCC versus TC, type of filler (fly ash and two types of limestone filler with a different grading curve), type of coarse aggregate (river gravel and calcareous rubble), the type of cement, cement/powder ratio, water/cement ratio, water/powder ratio and the amount of powder.