Clay Micromechanics and Bottom-up based Multiscale Simulations (Atomistic/Coarse-grained MD) Low-carbon Bio-geo-technologies (Self-assembly/healing/cleaning/Bacterial Robot/MICP) Sustainable and Emerging Geomaterials (Biopolymers/Geopolymers/Nano/Hybrid-soils/composites) Fundamentals of Soil Behaviors