https://wiki.opensourceecology.org/index.php?action=history&feed=atom&title=Cement_Impregnated_CanvasCement Impregnated Canvas - Revision history2026-05-16T10:35:40ZRevision history for this page on the wikiMediaWiki 1.39.13https://wiki.opensourceecology.org/index.php?title=Cement_Impregnated_Canvas&diff=212084&oldid=prevEric: Created Page + Added Basic Sections/Info2020-02-28T01:37:47Z<p>Created Page + Added Basic Sections/Info</p>
<p><b>New page</b></p><div>=Basics=<br />
*[[Cloth Canvas]] that has been Coated/Enfused (AAAAA NEED A WORD) with cement or concrete with only VERY FINE aggregate<br />
*Can go from a dense, yet flexible cloth to a semi structual componet via just water<br />
*The literal "Just Add Water" material<br />
*May present health issues and enviromental issues if not handled/used/disposed of properly<br />
*Main use is temporary structures for [[Disaster Relief]] , [[Refugee Camps]] , or [[Construction Material Storage]]<br />
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= [[User: Marcin]] 's Bit =<br />
http://www.concretecanvas.com/<br />
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A fabric/twine 1/4" matrix is printed in rolls and sewn to arbitrary shape. It is coated on one side with PVC (or bioplastic) and then impregnated with a concrete mixture to create thin flexible fabric panels that harden into solid concrete after wetting. Inflation makes for quick prefab buildings. I feel a derivative of such a flexible technology (sans inflation) could be a good pairing for CEB and strawboard for creating roofs and other structural components ... A similar thing could be done with agriculturally derived resins instead of concrete. Something to think about for the long term.<br />
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=Potential Health Issues=<br />
*Main is dust inhalation<br />
*Most likely a non issue, but encourage people all along the use chain to wear at least minor respritory protection as this is essentially cloth coatred with a fine powder<br />
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=Enviromental Issues=<br />
*In using [[Use Predictive Enviromental Design Considerations]] you can see that this could lead to increaased concrete use if it were to replace [[UN Disaster Relief Tents]] and other similar products<br />
*Unless using [[Solar Lime Kiln]] or [[Charcoal Fueled Lime Kiln]]s this could leave a LARGE [[Carbon Footprint]]<br />
*Thus this must be considered in design and use case choices<br />
*Other issues may be water use, as well as potential alkalization and dust pollution of area of use once demolished<br />
*Using a [[Silt Fence]] and [[Dilute and Dispose]] practtices, as well as taking most rubble/dust gatherd away should help<br />
*Could potentially be reused in either [[Cement/Concrete Recycling]] or as a [[Wave Barrier]] or [[Rubble Road]]<br />
*Yet again consider the [[Full Product Cycle]] when designing, and considering the use of these<br />
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=Research Needed=<br />
*How to impregnate canvas and other cloth with cement<br />
*How long it can be stored for<br />
*If it needs to be stored with [[Dessicants]] or other [[Dry Storage Methods]] , or if this increases shelf life<br />
*Structual Properties [[Mechanical Stresses]] simply test samples made in a [[Universal Test Machine]]<br />
*Chemical Properties (How it does agains acids and solvnets, may be neccisary in some use cases<br />
*Longevity tests (Make a tent, and check on it on a daily or monthly basis and reccord changes until total structual failure<br />
*How to patch leaks/if they can be patched (Does tape work like it does on canvas, also can cement impregnated canvas sheets be added, and wetted to bond and repair holes<br />
*HOW does it fail? Elastically? Explosively? Small Holes due to Erosion?<br />
*Can it be painted/does paint help<br />
*Does fine aggregate do anything<br />
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=See Also=<br />
*[[Open Source Cement Impregnated Canvas]]<br />
*[[Open Source Cement Impregnated Canvas Tent]]<br />
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=Useful Links=<br />
*[https://phys.org/news/2011-05-hour-deployable-concrete-tents-news.html A Phys.org article on the use of this material in disaster relief tents]</div>Eric