Synchrotron-radiation X-ray tomography: a method for 3D imaging of cement microstructure and its evolution during hydration
| Authors | |
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| Year of publication | 2004 |
| Type | Article in Proceedings |
| Conference | Proceedings of XIV. International Symposium SANACE 2004 |
| MU Faculty or unit | |
| Citation | |
| Web | http://www.sci.muni.cz/~mikulik/Publications.html#BaumbachHelfenMikulikDahn-SANACE-2004 |
| Field | Solid matter physics and magnetism |
| Keywords | cement; concrete; hydration; microtomography; synchrotron radiation |
| Description | New possibilities opened up by synchrotron radiation present x-ray tomography as an experimental imaging method to study the microstructural evolution during cement hydration. The present work demonstrates the potential of synchrotron-radiation microtomography for the investigation of cement structure after solidification. Quantitative determination of the spatial absorption- coefficient distribution due to the use of monochromatic radiation and the achieved high spatial resolution allows us to characterise the hydration process of cement volume on a micrometre scale in three dimensions. In particular, effects as the formation of microcracks and pores related to autogeneous shrinkage involved with the hydration process could be observed for the first time with down to one micrometre resolution. |
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