OO-C-2840, FEDERAL SPECIFICATION, CONCRETE PLANT, MOBILE, SEMITRAILER MOUNTED, VOLUMETRIC PROPORTIONING AND CONTINUOUS MIXING (27 DEC 1993)

OO-C-2840, FEDERAL SPECIFICATION, CONCRETE PLANT, MOBILE, SEMITRAILER MOUNTED, VOLUMETRIC PROPORTIONING AND CONTINUOUS MIXING (27 DEC 1993)., This specification covers mobile, semitrailer mounted concrete plant, consisting of a volumetric proportioning concrete mixer and material transporter with sufficient volume to deliver and mix the specified amount of concrete at the job site.