This EPD reports environmental transparency information for four cement products produced by CalPortland at its Oro Grande, CA plant. These cements are hydraulic binders and are manufactured by grinding cement clinker and other main or minor constituents into a finely ground, usually grey colored mineral powder. When mixed with water, cement acts as a glue to bind together the sand, gravel or crushed stone to form concrete, one of the most durable, resilient and widely used construction materials in the world. The Table below set out the products, their constituents and applicable standards.