Roughness and fractality of fracture surfaces as indicators of mechanical quantities of porous solids |
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| Authors: | Tomá? Ficker Dalibor Marti?ek |
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| Institution: | (1) Civil Engineering Department, N.S.S. College of Engineering, Palakkad, India;(2) Building Technology and Construction Management Division, Department of Civil Engineering, Indian Institute of Technology Madras, Chennai, 600 036, India; |
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| Abstract: | The 3D profile surface parameter H
q
and fractal dimension D were tested as indicators of mechanical properties inferred from fracture surfaces of porous solids. High porous hydrated
cement pastes were used as prototypes of porous materials. Both the profile parameter H
q
and the fractal dimension D showed capability to assess compressive strength from the fracture surfaces of hydrated pastes. From a practical point of
view the 3D profile parameter H
q
seems to be more convenient as an indicator of mechanical properties, as its values suffer much less from statistical scatter
than those of fractal dimensions. |
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| Keywords: | |
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