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Fireclay based mortar is very good in heat. Mix dry ingredients first, and then add gradually water while mixing - all by hand. After it's mixed leave the mud untouched for 10 minutes and then give it a quick remix - at this second mixing stage you might need to add just a little water in to improve consistency.
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www.traditionaloven.com/wwwboard/messages/3189.html
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we are at the dome building stage and i wonder about the sand/cement/fireclay mix you suggest. you seem to use quite a bit more cement and fire-clay ... we are at the dome building stage and i wonder about the sand/cement/fireclay mix you suggest. you seem to use quite a bit more cement and fire-clay to sand ratio than...
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www.fornobravo.com/forum/f8/fireclay-mortar-ratios-20.h...
www.fornobravo.com/forum/f8/fireclay-mortar-ratios-20.html
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Calcined fire clay and grog are essentially the same but of varying mesh sizes. ... Re: Jenny Dubats & Cone 5 B-Mix -- As with most Laguna Cone 5 bodies (one exception being Cone 5 Porcelain), Cone 5 B-Mix should fire well at Cone 6 or even Cone 7 or 8. Most of our bodies have a wide range, but we designate them at...
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www.potters.org/subject16214.htm
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You can mix "heat resistant" mortar yourself. Buy a bag of mortar clay (sometimes called fire clay) and mix that into the mortar mix. The bag will usually have a suggested ratio of cement, sand and clay.
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ths.gardenweb.com/forums/load/firepl/msg1021301831381.h...
ths.gardenweb.com/forums/load/firepl/msg1021301831381.html
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This page provides free information about Fire clay ... 2 definitions for Fire clay ... Fire clay, a variety of clay, entirely free from lime, iron, or an alkali, and therefore infusible, and used for fire brick. Porcelain clay, a very pure variety, formed directly from the decomposition of feldspar, and often called kaolin.
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www.wkonline.com/d/Fire_clay.html
www.wkonline.com/d/Fire_clay.html
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Many fireplace masons are not familiar with refractory mortar, or they confuse it with fireclay mortar. Masonry fireboxes are often laid in ordinary Portland cement mortar, sometimes with a little extra cement in it or perhaps with some fire-clay added to make it "fire-clay mortar".
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www.rumford.com/articleRefmortar.html
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Clay, Dig Your Own Clay; & Fire Without A Kiln ... Commercial clays can be added to balance the mix. Commercial ball clay adds plasticity (so it is less apt to crack when bending it). On the other hand, crude ground fireclay, china clay (kaolin) fine sand, and/or grog reduce plasticity (make it less sticky and shrink less).
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www.goshen.edu/art/DeptPgs/rework.html
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Manufacturing of refractory bricks from fire-clay is an interesting feature. The clay mined is stacked in the factory yard and allowed to weather for about a year. For daily production of different types of refractories, this weathered clay is taken and mixed in different percentages with grog.
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www.mineralszone.com/minerals/fire-clay.html
www.mineralszone.com/minerals/fire-clay.html
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Within LAGUNA HIGH FIRE CLAY CONE 5 & 10 50 LBS you can currently find some of the following products: a box of b-mix cone 5 clay 50lbs., a box of laguna b-mix cone 10 50lbs., ms2, clay cutters, clay gun large with plastic cap & comes with 5 dies included tube 9", diameter 2\" ... CLAY LOW FIRE/HIGH FIRE...
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www.ceramicartspace.com/ceramics79_149/ceramics187/stor...
www.ceramicartspace.com/ceramics79_149/ceramics187/store.html
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