Machinery and component parts thereof for use in the production, distribution, transportation, formation, application and use of concrete, namely, truck mixers and booster truck mixers, agitator bodies, drum rollers, drum tracks, chutes, trailerized haul units, steel pressurized storage vessel machines, storage and feed units, booster axle carriages for trailing axle truck mixers, front discharge mixers, dust collectors, slip form paving machines, belt placers, texture spray cure machines, track fine graders, screening plants, permanent and portable concrete plants, dry holding hopper plants, portable paving plants, permanent and portable tilt mixers, permanent and portable horizontal mixers, slurry mixers, concrete batching controls, curb and gutter paving machines, median barrier paving machines, soil cement and roller compacted concrete portable central mix plants, twin shaft central mixers, pugmill mixers, hot water systems for ready mix plants, truck mixers, concrete tunnel equipment, canal concrete paving equipment, concrete mixer blade components, spiral tilt mixer blade systems comprised of an outer housing with internal mixing blades or paddles that can be rotated from the vertical position to the horizontal position for loading and unloading of concrete, and paddle tilt mixer blade systems comprised of an outer housing with internal mixing blades or paddles that can be rotated from the vertical position to the horizontal position for loading and unloading of concrete