Sep 05, 2011 22:13
Okay, flist. I need something in science that's clingy to use as an analogy. As in, she clung to him like.... My character is smart and a soil scientist, so even obscure things are okay.
I used to think I was smart and I'm definitely not a soil scientist, so I need your help!
help_a_writer
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Comments 10
Similar to many other clays, montmorillonite swells with the addition of water. However, some montmorillonites expand considerably more than other clays due to water penetrating the interlayer molecular spaces and concomitant adsorption. The amount of expansion is due largely to the type of exchangeable cation contained in the sample. The presence of sodium as the predominant exchangeable cation can result in the clay swelling to several times its original volume. Hence, sodium montmorillonite has come to be used as the major constituent in non-explosive agents for splitting rock in natural stone quarries in order to limit the amount of waste, or for the demolition of concrete structures where the use of explosive charges is unacceptable.
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