bonsaiTALK Community - View Single Post - lightweight concrete as a pot/slab material?

Yes, similar equivalent, notably lighter yet than the thermalite. Thermalite was still 730kg/m3, chunks I have are 500kg/m3 and I even have one from a different mix that's only 300 kg/m3 (ie. water is 1000kg/m3 for reference). Anything I did with it would have a pure flat base for full bearing etc. May work OK just as base medium for carving a pseodo terrain/mountainous piece that I can actually move in the future. Application of a sealer would help prevent frost damage and root ingress I suppose.

Will see, with minor flyash it could be a very fun/handy/workable and strong enough material if brewed from scratch. At a minimum it's making cool boulders at present.

The other day on a site I came across a wicked granite slab that had just spalled off a cubic plus metre boulder, very cup shaped etc for great soil depth without visually thinking as much with curled rising edges, but was close to a metre in diameter and likely some 200 lbs so was immobile at the time for myself and hence later hauled with other contruction spoils from the works.

16-Oct-2004	#8
Happy Gilmore bonsaiTALK Expert Join Date: Oct-2003 Location: Vancouver, BC Country: Canada USDA Zone: 8 AHS Heat Zone: ? Posts: 159	Yes, similar equivalent, notably lighter yet than the thermalite. Thermalite was still 730kg/m3, chunks I have are 500kg/m3 and I even have one from a different mix that's only 300 kg/m3 (ie. water is 1000kg/m3 for reference). Anything I did with it would have a pure flat base for full bearing etc. May work OK just as base medium for carving a pseodo terrain/mountainous piece that I can actually move in the future. Application of a sealer would help prevent frost damage and root ingress I suppose. Will see, with minor flyash it could be a very fun/handy/workable and strong enough material if brewed from scratch. At a minimum it's making cool boulders at present. The other day on a site I came across a wicked granite slab that had just spalled off a cubic plus metre boulder, very cup shaped etc for great soil depth without visually thinking as much with curled rising edges, but was close to a metre in diameter and likely some 200 lbs so was immobile at the time for myself and hence later hauled with other contruction spoils from the works.