3D concrete printing 3D printing Back Propagation Neural Network History of engineering & technology NMR Random Forest Technology: general issues aging kinetics anisotropy asphalt binder and mixture asphalt mixture asphalt mortar asphalt pavement beetle antennae search bio-oil asphalt/water emulsion building demolition waste carbonation cement stabilized soil cement-based aggregate cement-based materials cement-stabilized coarse aggregate compatibility composite modification corrosion curing conditions diversion tunnel dredged sediment expansion experimental study