Foundation
Sidewalk
Castles
Bridges
Curbs
Streets
well kind of you can make concret whitch goes on the road to make one but it might be a natural resouce.
C : refer to concret 20 : its Resistance of concret cube when we make test on it after 28 days measuring by N/mm2.
with metal and concret
what rate of trimix concret
Water+cement
concret
common noun
The ancient Romans developed concrete.
Concrete is a mixture not a chemical compound.
water+cement=concrete
1.5 meters
very thick concret fortifications