concrete [Noun] + hard [Adjective]

Strength Strength Dispersion
A:
7
CHISQ:
25.19
AWT:
9,242,625
TTEST:
2.16
G2:
15.75
FAWT:
5.88
MI:
2.44
LOGLOG:
6.84
JD:
0.63
MI3:
8.05
DICE:
0.09
RANGE: