An accelerating voltage and current of 12 kV and 80 mA, respectively, was used during SEM (XL 30 Phillip). CCR and CCR-GFA pastes were gold-coated before observation. These techniques were used to study the microstructure and fracture surface of CCR and CCR-GFA pastes at 60 days. Paste structures of CCR, GFA, and CCR-GFA at 60 days were examined using xRD (D8000 with CuKa radiation generated at 40 mA and 40 kv). The specimens were scanned at 20 from 2 to 800 in 0.02° steps at a rate of 0.1 s per step. Chemical features of the samples were analyzed by infrared spectrometry (IR). Infrared spectra were used to record the molecular absorption and transmission, creating a molecular finger- print of the samples at 60 days. Experiments were done with a Perkin-Elmer 1600 series FTIR spectrometer using the KBr pellet technique.