Studies of Fractal Aspects of Cement

• Authors: J. Janik , W. Kurdowski , R. Podsiadły , J. Samseth
• Languages of publication: EN

Abstracts

EN

Small angle neutron scattering can be used to reveal the fractal nature of matter. The problems of fractal aspects of the structure of cement are related to those of fractal aspects of silica aerogels. Natural cement, when mixed with water, transforms after a series of chemical reactions (in a large part) into an amorphous phase called C-S-H. It is believed that the cationic sublattice composed of CaO_{6} octahedrons constitutes the C-S-H structural basis, to which the SiO_{4} tetrahedral chains are attached. It is a layer structure in which the cation sublattice determines the way of SiO_{4} condensation. It is natural to expect that in this way one may obtain a really amorphous substance, since some tetrahedrons may be lacking, which leads to defects. We present here the results of a small angle neutron scattering and X-ray diffraction study of several samples with the pure C-S-H phase for which during the process of chemical synthesis various ratios of molar contents of CaO and SiO_{2} were used (various C/S ratios). We obtained a gradual change of fractal characteristics with the change of C/S ratio.

Keywords

EN

61.12.Ex; 82.70.Gg

Discipline

• 82.70.Gg: Gels and sols

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1996
• Volume: 90
• Issue: 6
• Pages: 1179-1184

Dates

published

1996-12

received

1996-05-22

(unknown)

1996-10-22

Contributors

author

J. Janik

• H. Niewodniczański Institute of Nuclear Physics, Radzikowskiego 152, 31-342 Kraków, Poland

author

W. Kurdowski

• Mining Academy, Mickiewicza 30, 30-059 Kraków, Poland

author

R. Podsiadły

• Faculty of Chemistry of the Jagiellonian University, Ingardena 3, 30-060 Kraków, Poland

author

J. Samseth

• Institutt for energiteknikk, 2007 Kjeller, Norway

Identifiers

DOI

10.12693/APhysPolA.90.1179