Aragocrete Portland Type I Cement

The type I/II works great too, In fact under identical conditions it will achieve higher strength with less free lime than the type I. But if you really want the white it can be had at concrete solutions, 3596 so. 500 w.

You can get pigments there too if you're interested in trying color.

Thanks for finding and reposting that, I'd been looking for a way to put the recipe out there in a simple form. I had forgotten that I'd done that once already.

That recipe is still pretty much the ratios I work with. I sort of cook by feel, adding cement, sand, and coarse aggregate till it has the texture I'm going for, and a good coating of cement on all particles.

The easiest way to cast and get interesting forms, I find, is to use a bucket or suitable container and put a little of my wetted aggregate in the bottom. Then drop in some clumps of aragocrete mix, then pour more wetted aggs. around it, then more 'crete lumps so that they touch the others, then more fill, more 'crete, and so on till youve formed a layered, random, shape you like. Try not to pack the 'crete as you do this, other than a bit of squishing into the other lumps, so as not to press out desireale voids. Then tap the bucket or whatever rapidly but lightly to create vibration which will better bond the particles of cement together and to the aggregates. The more you do this the stronger your casting will be but you will start shaking out bubbles (read: voids) so don't overdo, thirty seconds or so should give a solid piece.

Start with small batches and experiment with it to get what you like out of it. You'll quickly get a feel for it I'm sure, but if you'd like a demonstration, or just a casting buddy to B.S. with while we mix, You're welcome to come by and see what I do, I cast whenever I can get an excuse to.