Abstract: Provided here are hemp-based concrete compositions and methods of production of these compositions. These compositions contain an aggregate containing coarse hemp hurd and an alkali-activated binder including a hemp powder derived from a woody core of a hemp plant.

Abstract: A magnetizable concrete wireless power transfer pad can include a base, an inductive coil and a pillar. The base can comprise a magnetizable base concrete including concrete and first magnetizable particles, the first magnetizable particles having a magnetic permeability and a magnetic saturation. The inductive coil can be positioned directly adjacent and centered over the base, the inductive coil forming an inductive coil gap at its center inner perimeter between a conductive wire that form the inductive coil, the inductive coil having an outer perimeter, a lateral width, and a longitudinal length.