4 [Documentary + Focused Discussion] The Revelation of the Pyramids - what were the ancient builders of these “impossible” structures trying to tell us? (vimeo.com) posted 63 days ago by Graphenium 63 days ago by Graphenium +5 / -2 53 comments share 53 comments share save hide report block hide replies
No idea. CIP (cast in place) is how concrete is poured.