tag:blogger.com,1999:blog-6638497050839732163.post2395413630030770336..comments2023-11-15T22:25:18.188-05:00Comments on North Carolina Clay Club: Processing LimestoneAmy Wallerhttp://www.blogger.com/profile/04965597757961207665noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-6638497050839732163.post-33468468056771130352008-12-04T19:53:00.000-05:002008-12-04T19:53:00.000-05:00Thanks for the correction Julie! I will check it o...Thanks for the correction Julie! I will check it out.<BR/><BR/>JohnJohn Britthttps://www.blogger.com/profile/17496106721092541557noreply@blogger.comtag:blogger.com,1999:blog-6638497050839732163.post-33266300907782041602008-12-04T14:42:00.000-05:002008-12-04T14:42:00.000-05:00Almost... The calcined limestone is CaO, commonly ...Almost... <BR/><BR/>The calcined limestone is CaO, commonly known as quicklime. Dangerous stuff. :) You got that right.<BR/><BR/>When slaked, you get hydrated lime, calcium hydroxide. Not so dangerous. Slake it long enough and you get a nice thixotropic putty.<BR/><BR/>Calcium carbonate is much farther down the timeline. The hydrated lime reacts with the carbon dioxide in the air to bring you back to calcium carbonate. That process takes a relatively long time, though. Couple years. <BR/><BR/>Back in the day, before Portland cement, all masonry structures were made with lime based mortar. Some 18th century Scottish castles still have unset mortar buried deep in the walls... the carbonation hasn't made it that far. If you're curious to learn more, I'd suggest wikipedia's article on lime mortar... I learned all this by attending a workshop on lime putty mortar at U.S.Heritage group. They are materials geeks there.Juliehttps://www.blogger.com/profile/08348646515514731361noreply@blogger.comtag:blogger.com,1999:blog-6638497050839732163.post-88899374935078233202008-12-02T18:30:00.000-05:002008-12-02T18:30:00.000-05:00Hell yes,And we will smoke Jimson Weed in a peace ...Hell yes,<BR/><BR/>And we will smoke Jimson Weed in a peace pipe too!<BR/><BR/>JohnJohn Britthttps://www.blogger.com/profile/17496106721092541557noreply@blogger.comtag:blogger.com,1999:blog-6638497050839732163.post-52335085466562989322008-12-02T12:31:00.000-05:002008-12-02T12:31:00.000-05:00"All Natural," glaze material!You HIPPY!Is there g..."All Natural," glaze material!<BR/>You HIPPY!<BR/>Is there going to be a drum circle at your workshop as well?<BR/>;)Clay Clubhttps://www.blogger.com/profile/12803432318311820987noreply@blogger.com