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WHY TOOTHPASTE AND CEMENT HARDEN OVER TIME

Informed a week ago

UD engineer part of international collaboration that explains aging in paste materials.
Many paste materials, also known as dense colloidal suspensions, stiffen as they age. Structural dynamics, or changes in the loads the materials undergo over time, are partly responsible for this change, but for decades, experts have suspected that there’s more going on inside these materials.

Now, University of Delaware chemical and biomolecular engineering professor and chair Eric Furst and a team of researchers from the Ecole des Ponts and University Paris-Est in France have discovered a process called contact-controlled aging that explains some age-related changes in paste materials.


Source:  © University of Delaware







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