Abstract
This paper presents a study of the surface height irregularities of cement pastes subjected to fast dynamic fractures. The height irregularities are quantified by the values of the three-dimensional profile parameters. The studied dynamical irregularities show a similar analytical behavior to those obtained by static fractures.
Highlights
We have recently published several studies [1,2,3] on the surface morphology of fractured specimens made from hydrated cement pastes
This material shows a high value of porosity, which has been proved to be an influential factor governing the irregularities of fracture surfaces
The three-dimensional profile parameter Ha was used to characterize the roughness of the fracture surfaces of the hydrated cement pastes
Summary
We have recently published several studies [1,2,3] on the surface morphology of fractured specimens made from hydrated cement pastes This material shows a high value of porosity, which has been proved to be an influential factor governing the irregularities of fracture surfaces. For practical surface analyses of porous materials, it would be valuable to know whether the surface height irregularities are influenced by the method of fracture. For this purpose we performed a large series of experiments with cement pastes. Correct knowledge of the dependence of surface roughness on the fracturing method may be useful for further surface studies of fractured porous materials
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