W t f n i g g a
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
concret
what rate of trimix concret
Water+cement
common noun
Concrete is a mixture not a chemical compound.
water+cement=concrete
The ancient Romans developed concrete.
Usher's full name is Usher Terry Raymond IV
its called 'yeah' by usher or papers
very thick concret fortifications