Abstract
Tensoactive agents may decrease water absorption in clay products like adobes. They modify the characteristics of the surface of clay particles. Characterization of water diffusion through the pores of modified clays is important to apply appropriate surface modifiers and to improve their performance. We established a simple model for water diffusion in test samples of defined dimensions to estimate real physical parameters and their effect on water absorption. Adsorption mechanisms are examined based on experimental results. The fitting of the experimental data to the model provides a deep understanding of water adsorption in chemically modified clays. A better agreement between the model and the experimental data is achieved for complex molecules.
Original language | English |
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Article number | 035 |
Pages (from-to) | 4991-4997 |
Number of pages | 7 |
Journal | Journal of Physics D: Applied Physics |
Volume | 40 |
Issue number | 16 |
DOIs | |
State | Published - 21 Aug 2007 |
Externally published | Yes |