FreeShip- CSA Cement & Accelerator - (Prompt rebate on orders with 3 or more FreeShip items!)

$8.35

Shipping to United States: $3.50
grams
Quantity

(3)

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CSA Cement & Accelerator

Please note: Not all sizes pictured.

This is a another cement used like portland cement. It's distinct from portland cement by its chemistry, properties, and usage. The full name is "calcium sulfoaluminate cement". One of its primary uses is as an accelerator and strengthener for portland cement mixes (note that calcium chloride is another material used as a portand cement accelerant). The CSA in this listing is just the generic form, made by several manufacturers. There are a couple of varieties which differ somewhat, one being a version that's intended to be used by itself alone, and another intended to be primarily an additive to portland cement. This is expensive cement compared with portland cement so its use is mostly restricted to high performance concretes used for 'smaller' objects like concrete countertops, and decorative floors.
There is a lot of information on the internet about how to use it, its properties, and recommended percentages when used with portland cement.
Here's a great webpage on them:
http://www.concretecountertopinstitute.com/csa-explained-csa-cements-csa-additives-pozzolans-citric-acid-and-ice/
Here's the type Blue Concrete sells:
http://www.blueconcrete.com/csa-cement-additive-buzzi-unicem-csa/
"Buzzi Unicem CSA is a cement additive, high in Calcium Aluminum Sulfate Crystals. When used with Portland cement concrete, Buzzi Unicem CSA generates a strong cementitious matrix that enhances the physical and chemical properties of the mix. This is the basis for rapid setting mix designs. Buzzi Unicem CSA is a accelerates the curing time, particularly in cooler temperatures. Typical dosage range for Buzzi Unicem CSA at between 5% - 20% replacement of cement. Buzzi Unicem CSA may be used as a replacement to Qwix®.
Buzzi Unicem CSA will alter final color outcome"
Here's the Wiki article on calcium aluminate cements:
https://en.wikipedia.org/wiki/Calcium_aluminate_cements
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This is one of a series of listings I'm making for materials that can be used to enhance concrete and other cementitious mixes. I decided I wanted to migrate away from using polymers like epoxy, urethane, polyester, and other 'resins' for making castings. One reason was the high cost of resins and another was nuisance/safety factor of using them and inevitably the organic solvents you have to use to clean up drips and spills.
Over the years I'd already used gypsum cements as casting materials, but their physical properties (when cured) weren't always to my liking. Their surfaces are kind of 'dead' unless you add a coating, and they are brittle (low tensile strength). I'd also tried using concrete/mortar mixtures and was even more unhappy with their cured properties.
The properties I wanted from a casting material were: high hardness and tensile strength (above any existing cement), whiteness (so I could add pigment to make it any color I wanted), and a degree of translucency (about like marble). I started researching and discovered some things that led me to believe I could formulate my own casting material. Here are some of those things:
New gypsum cements that I wasn't familiar with, refractory cements I'd forgotten about, a casting system already formulated that was close to what I wanted: Forton MG, the fact that you can use elements of Forton outside the Forton MG system, new concrete types I wasn't familiar with, new concrete additives I wasn't familiar with, the concrete countertop industry, pozzolanic materials I wasn't familiar with.

I was aiming for a very specific results (some translucency, etc) and because the ingredients chosen for the particular results you're after can be very different from mine, it's impractical to go into any more detail because the interactions between ingredients are just too complex. If what you're trying to do varies by even a little from what I was trying to do, it's too difficult to predict what will work and what won't. I spent 6 months making hundreds of test mixes. I almost finished, but something else intervened and I had to put the project on hold. I haven't done anything further with this project for 5 or 6 months. What I want to do is leave you with the links I've provided to information on particular materials, so you'll have a handy means of doing the research into whichever material I'm listing yourself. And there is a wealth of sources about these materials on the internet above and beyond what I'm citing. (Please note that I have other materials in my shop which could fit into this 'cementitious mixes' category. To locate them do a shop search on "Colloidal", "Thixo", "Cab-o-sil", "Cement", "Kaolin", and "Calcium": Calcium Chloride is a cement accelerator and Calcium Sulfate Dihydrate (raw gypsum) is a pozzolan).-

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  • North America : 3 - 5 business days

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Reviews

Reviews (3)

Average:

Lightening fast delivery. Excellent communication. I will be back. Thank you.


Just learning how to make lightweight rocks for a fish pond/garden. Cement recipe called for only 5% to 10% additives of Metakaolin and CSA (fast-setting concrete) but all I could find were huge, 50lb bags that I simply couldn't afford. I believe it was a miracle that I found NorthernWestStuff and could order small quantities of this stuff - exactly what I needed! Thank you Mister West - I'll be back :-)


Item was as expected; seller was sensational--providing information and guidance; really appreciated the experience!


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