Content
@
1 reply
0 recast
3 reactions
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.
0 reply
3 recasts
18 reactions
Mandana
@mandana
Wow what a great invention 👌🏻 15 $DEGEN
0 reply
0 recast
0 reaction
