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RHEOLOGY AND SCALING BEHAVIOR OF SWELLING CLAY DISPERSIONSKeywords: rheology , scaling behavior , clay Abstract: The microstructure and scaling of rheological properties of colloidal gels of bentonite investigated as a function of volume fraction and strength of interparticle interaction over a range of volume fractions, elastic modulus is well described with a scaling law functions of volume fractions, while the role of interparticle attractions can be accounted for by expressing these rheological properties as ( / g-1)n, where g captures the strength of particle interaction and n the microstructure.The scaling variable ( p/ pc-1), suggested in percolation theory to describe rheological behavior near percolation transition, acts to collapse G’ data suggesting that along lines of constant ( / g-1) these gels are rheologically identical.
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