Content
@
0 reply
0 recast
0 reaction
Sara AWA
@khoda
In 1824 Joseph Aspdin invented Portland cement by burning finely ground chalk and clay until the carbon dioxide was removed. Aspdin named the cement after the high-quality building stones quarried in Portland, England. In the 19th Century concrete was used mainly for industrial buildings.
14 replies
12 recasts
58 reactions
adrina🎩
@adrinaadrian
He has done a really useful job 👌👌 19 $DEGEN
0 reply
0 recast
0 reaction
