The document summarizes research on monitoring corrosion-induced cracking in cement-based materials. X-ray computed tomography was used to study how corrosion products migrate into pores and cracks. Nanoindentation tested the mechanical properties of rust, finding it has a lower Young's modulus that decreases with damage. Energy dispersive X-ray spectrometry identified differences in rust composition. The study showed superior crack resistance in steel fiber reinforced concrete compared to normal concrete.