Hi Neotech,
After I received a copy of Thomas Zietz GradingCurve.XLS, I had a look at what my local hardware store had which would be useful aggregate. From the garden section I got 4x 25 Kg bags as follows:
5-8mm pebbles -
http://www.quarzwerke.at/datenblaetter/Quarzkies_ME_5,0_-_8,0.pdf2-4mm crushed rock - (No data sheet - this stuff is sharp edged crushed rock for spreading on the icy footpath)
0.5-2mm quarz sand for improving your grass -
http://www.quarzwerke.at/datenblaetter/Quarzsand_ME_0,5_-_2,0.pdf0.1-0.3mm quarz sand for grout -
http://www.quarzwerke.at/datenblaetter/ME23-Beschichtung.pdfCool that the local quarry which supplies them publishes the datasheets with the screen sizes. Total cost of that 100kg was about €13.
I still have some very fine alumina from making a furnace, so that will be my finest filler. It cost €16,50 for 5kg from a pottery supplier.
So without even driving the 50km to the quarry, I could pick up a ton of aggreate for about €130 five minutes from home, although the alumina would get pricy for that amount.
Using the grading spreadsheet, it gives me the following recipe to make up a liter of Polymer concrete:
Grain 5 6,35 mm 100,00 26 % 259 ml 399 gr
Grain 4 3,00 mm 74,09 26 % 263 ml 403 gr
Grain 3 1,00 mm 47,74 20 % 203 ml 350 gr
Grain 2 0,25 mm 27,42 16 % 157 ml 243 gr
Grain 1 0,03 mm 11,74 12 % 117 ml 197 gr
100 %1000 ml 1592 gr
The two largest aggregates are wet, so I am drying some in the oven. I read that moisture has a very detrimental effect on E/G strength.