Eleven unique core samples from the National Radioactive Waste Repository of Hungary, Bátaapáti were studied in this work. The samples all cross the granite–concrete interface and have been drilled from around 275 m depth from the surface, 1–15 months after concrete injection. Phase analytical techniques, optical microscopy, SEM-EDS and Raman-spectroscopy were used for the analysis of interactions between granitic rock and cementitious building material. Newly formed phases, Ca-carbonates and titanite, were observed at the interface. Carbonation may reduce the porosity and permeability in the contact zone. The presence of titanite indicates the changing geochemical and thermodynamical constrains along the reaction front of granite–concrete, furthermore, it may help in the validation of future geochemical models. The cementitious material is seen to penetrate among the sheets of biotite mineral in granite which process is probable to cause the attachment of granite and concrete.

在这项工作中，研究了来自匈牙利巴塔阿帕蒂国家放射性废物处置库的十一个独特的核心样品。所有样品都穿过花岗岩-混凝土界面，并在注入混凝土1-15个月后从地表深275 m处钻出。相分析技术，光学显微镜，SEM-EDS和拉曼光谱法被用于分析花岗岩和胶结建筑材料之间的相互作用。在界面处观察到新形成的相，碳酸钙和钛酸盐。碳化可能会降低接触区的孔隙率和渗透率。钛铁矿的存在表明花岗岩-混凝土反应前沿沿地球化学和热力学约束的变化，此外，它可能有助于验证未来的地球化学模型。