Browse Forums Landscape & Garden Design 1 Jun 04, 2018 3:57 pm I have a potting mix recipe that calls for sharp sand. Can't find it anywhere. Could zeolite be classified as sharp sand? Or does anybody know what sharp sand is called in Australia & where to get it? there is only 20% difference in concrete strength between 20 mpa and 25 mpa, so check with your engineer first if it fits his calculation tolerances. There are ways to… 6 14620 Thanks for your reply. I will just wait and see I guess. Trying to get some more information from our builder. 9 11741 I am not sure whether Perth has its own way of doing things in regards to this. Most of Perth has class A (sandy soil), except for some areas near rivers or hills. 2 8276 |