Microstructural changes in self-compacting concrete by sulphuric acid attack Ghent University
Five different Self-Compacting Concrete (SCC) compositions, composed of three different types of mineral additions (limestone powder, quartz powder and fly ash) and two types of cement (CEM I 52.5 R HES and CEM III/A 42.5 N LA), were exposed to a continuous immersion in a H2SO4-solution (pH ~ 1.7) for 26 weeks. Rate of attack was estimated by means of mass variation versus time. Microstructural degradation was investigated using polarizing light ...