TY - DATA T1 - Characterization of test specimens produced in reduced size for X-ray microtomography (µ-CT) tests PY - 2017/12/05 AU - E. E. BERNARDES AU - A. G. DE MAGALHÃES AU - W. L. VASCONCELOS AU - E. V. M. CARRASCO AU - E. H. M. NUNES AU - L. B. DE LIMA UR - https://scielo.figshare.com/articles/dataset/Characterization_of_test_specimens_produced_in_reduced_size_for_X-ray_microtomography_-CT_tests/5668969 DO - 10.6084/m9.figshare.5668969.v1 L4 - https://ndownloader.figshare.com/files/9905350 L4 - https://ndownloader.figshare.com/files/9905353 L4 - https://ndownloader.figshare.com/files/9905359 L4 - https://ndownloader.figshare.com/files/9905365 L4 - https://ndownloader.figshare.com/files/9905371 L4 - https://ndownloader.figshare.com/files/9905374 L4 - https://ndownloader.figshare.com/files/9905380 L4 - https://ndownloader.figshare.com/files/9905383 L4 - https://ndownloader.figshare.com/files/9905386 L4 - https://ndownloader.figshare.com/files/9905389 L4 - https://ndownloader.figshare.com/files/9905392 L4 - https://ndownloader.figshare.com/files/9905395 KW - X-ray microtomography[/kwd], [kwd]fractionation of samples[/kwd], [kwd]test specimen[/kwd], [kwd]pycnometry[/kwd], [kwd]pore structure N2 - Abstract The need to use reduced sample sizes, in order to attain improved spatial resolution in (µ-CT) tests applied in Portland cement composites, makes researchers perform the fractionation of materials to obtain samples with dimensions compatible with the capacity of the scanning equipment, which might cause alterations in the microstructure under analysis. Therefore, a test specimen (TS) with dimensions compatible with the scanning capacity of a microtomography system that operates with an X-ray tube and voltage ranging from 20 to 100 kV was proposed. Axial compression strength tests were made and their total porosity was assessed by an apparent density and solid fraction density ratio, which were obtained by means of mercury and helium pycnometry and µ-CT technique, respectively. The adoption of that TS has shown to be viable for providing a sample with a higher level of representation. ER -