Stereo pair imaging in a scanning electron microscope was used to document the details ofthe topography of fracture surfaces at various degrees of magnification. The fracture surfaces had been produced by fracture testing of chevron-notched beam specimens according to ISRM Method I. The surfaces examined included the fracture surfaces of dolomite and andesite rocks, cement pastes with and without silica fume, the fracture surfaces from specimen prepared by casting cement paste on previously fractured rock specimen faces, and the fracture surfaces of mortars prepared using the same rock types and cement pastes. The principal topographic features of the various fracture surfaces are described.
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Mindess, S., Diamond, S. Fracture Surfaces of Cement Pastes, Rocks, and Cement/Rock Interfaces. MRS Online Proceedings Library 370, 295–307 (1994). https://doi.org/10.1557/PROC-370-295