Concrete is very versatile, inexpensive, literally hard, and can be cast into almost any shape. It consists, in principle, only of sand, gravel, water, and the binder cement. The latter is made by the ...

PyroGenesis Inc. signed a $1.3M contract with a European cement industry customer for the supply of a plasma torch system for the electrification of a calcination furnace. MONTREAL — PyroGenesis Inc.