Mixing drum

A mixing drum includes a body defining a discharge aperture, a head coupled to the body opposite the discharge aperture, and a mixing element. The body includes an inner layer defining an interior surface of the body and an outer layer defining an exterior surface of the body. The head includes a connecting flange extending between the inner layer and the outer layer of the body. The head and the body define a volume. The mixing element is positioned within the volume and coupled to the body.