Table 7: Concrete properties under varying dosages of clay.

SamplesClay (%)Compressive strength (MPa)Splitting tensile strength (MPa)Elastic modulus (GPa)Elastic modulus and compressive strength ratioTensile strength (MPa)
14 d28 d90 d14 d28 d90 d14 d28 d90 d14 d28 d90 d28 d90 d

Xq509.211.116.71.001.101.401.974.027.322133624380.951.28
Xq6205.68.213.30.550.801.192.483.535.144424303870.751.10
Xq7403.14.26.30.200.400.600.831.573.582683745680.400.55