document: The visible cement data set With advances in x-ray microtomography , it is now possible to obtain three-dimensional representations of a material 's microstructure with a voxel size of less than one micrometer . The Visible Cement Data Set represents a collection of 3-D data sets obtained using the European Synchrotron Radiation Facility in Grenoble , France in September 2000 . Most of the images obtained are for hydrating portland cement pastes , with a few data sets representing hydrating Plaster of Paris and a common building brick . All of these data sets are being made available on the Visible Cement Data Set website at http://visiblecement.nist.gov . The website includes the raw 3-D datafiles , a description of the material imaged for each data set , example two-dimensional images and visualizations for each data set , and a collection of C language computer programs that will be of use in processing and analyzing the 3-D microstructural images . This paper provides the details of the experiments performed at the ESRF , the analysis procedures utilized in obtaining the data set files , and a few representative example images for each of the three materials investigated
doc_bio_tags: O O O O O O O O O O O O O O O O O O O O O O O B O O B I O O O O O O O O O O O O O O O O O O O O O B I I I O O O O O O O O O O O O O O O B I I I O O O O O O O O B I I O O O B I O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O B I O O O O O O O O O O O O B O O O O O O O O O O O O O O O O O O O O O O O O O
extractive_keyphrases: microstructure voxel size european synchrotron radiation facility hydrating portland cement pastes plaster of paris building brick microstructural images esrf
abstractive_keyphrases: x-ray microtomography 3d representations cement hydration two-dimensional images