3D tomographic image ABAQUS C-shape magnetic probe test CO2 curing CSA expansive additive GGBFS History of engineering & technology Ms (SiO2/Na2O) Na2O content SIFRCC Split Hopkinson Pressure Bars (SPHB) Technology: general issues X-ray CT analysis abrasion agglomeration alkali-activated material alkali-activator alternative alkali-activated material aspect ratio attenuation factor autogenous shrinkage basalt fibers bio-slime brittle materials calcined zeolite sand calcium sulfoaluminate-based expansive additive carbon nanotubes casting method cement-based material cement-based materials