A controller for a concrete mixer vehicle includes a base, an elongated shaft extending from the base, and a control portion positioned at free end of the elongated shaft. The control portion has a grip portion and a button interface providing at least one of a plurality of controls. The plurality of controls facilitate selectively operating (i) a hopper actuator to reposition a charge hopper between a first position and a second position, (ii) a first chute actuator to pivot a chute about a lateral axis to raise and lower a distal end of the chute, (iii) a second chute actuator to pivot the chute about a vertical axis to move the distal end left and right, (iv) a drum driver to control at least one of a speed or a rotational direction of a mixing drum, and (v) a transmission of the concrete mixer vehicle in one of a plurality of modes.

Compositions and methods are provided for a system in which liquid carbon dioxide, or a mixture of liquid and gaseous carbon dioxide, is converted to solid carbon dioxide by exiting an orifice at a sufficient pressure drop, e.g., for delivery of carbon dioxide to a concrete mixture in a mixer.

The present invention relates to a new method and system for reclaiming and recycling the concrete residue that remains on key components of a concrete mixing truck in a safe and environmentally responsible manner. Any slurry aggregate remaining on the chutes or other parts of the concrete mixing truck is collected by a concrete collection system that is attached to the concrete mixing truck and includes an augur conveyor enclosed in a housing, whereby the augur conveyor is hydraulically extended either behind or in front of the chutes of the concrete mixing truck depending on a type of mixing truck. The augur conveyor can be raised to a maximum height in order to discharge any collected slurry aggregate from the chutes or other parts of the truck back into a top hopper of the concrete truck to be directed back into the mixing drum of the concrete mixing truck.

A method and apparatus for producing liquified Alternative Supplemental Cementitious Material (ASCM) from an uncured concrete slurry. Uncured concrete slurry is received into a receiving hopper, diluted with water, and pumped upward through a slurry discharge conduit to an aggregate separator that screens the gravel and sand for separate discharge. The remaining ASCM entrained water flows into a holding tank. The ASCM settles to the lower portion of the holding tank. The holding tank stores the remaining water for re-use diluting uncured concrete slurry. The ASCM is liquified and moved towards the ASCM discharge port by an agitator system located in the bottom of the holding tank. From the discharge, a pump delivers the liquified ASCM through a conduit for discharge. The discharged ASCM can be used as a partial replacement for Ordinary Portland Cement and as an ingredient in flowable fills.

A mixing drum assembly includes a frame, a mixing drum rotatably coupled to the frame, and a charge hopper coupled to the frame and positioned to direct material into the mixing drum. The charge hopper includes a hopper frame and a liner extending along an inner surface of the hopper frame and at least partially defining a passage extending between an inlet and an outlet. The hopper frame includes a first material and the liner includes a second material different from the first material. The liner is removably coupled to the hopper frame.

A concrete mixer system includes a washout system and a controller. The washout system includes a tank configured to store a fluid, a plurality of electronically controllable valves in fluid communication with the tank, and a plurality of nozzles. One or more of the plurality of nozzles are fluidly coupled to a respective one of the plurality of electronically controllable valves. Each of the plurality of nozzles is configured to be positioned to facilitate washing a respective component of a concrete mixer vehicle. The controller is configured to (i) receive an indication that the washout system is coupled to a continuous fluid source and (ii) operate the washout system in a continuous wash mode in response to receiving the indication.

Provided herein are methods, apparatus, and systems for delivering carbon dioxide as a mixture of solid and gaseous carbon dioxide to a destination.

A concrete mixer vehicle includes a chassis, a cab coupled to the chassis, a drum assembly coupled to the chassis, and a module coupled to the chassis and positioned rearward of the drum assembly. The module includes a prime mover, a cooling system, and a hood. The hood has a first end positioned proximate the drum assembly, an opposing second end positioned proximate a rear end of the chassis, and a top surface. The hood defines an internal cavity within which the prime mover and the cooling system are disposed. The first end defines an inlet airflow cavity. The inlet airflow cavity has a bottom surface and an air inlet positioned between the top surface and the bottom surface. The air inlet connects the inlet airflow cavity to the internal cavity.

A concrete transport vehicle has a vehicle chassis, a concrete drum unit and a drum lift apparatus. The vehicle chassis carries the concrete drum unit and the drum lift apparatus. The concrete drum unit has a concrete drum, wherein the concrete drum is adapted to discharge concrete. The drum lift apparatus is adapted to lift the concrete drum unit with reference to the vehicle chassis from a transport position to a discharge position, wherein a vehicle height of the concrete transport vehicle is lowered in the transport position compared to the discharge position and wherein a drumrear and a drumfront of the concrete drum unit each is lifted in the discharge position compared to the transport position.

A material delivery apparatus for delivering foam into a mixer of a ready-mix truck comprising an elongated bar, a support arm, a guide tube and a delivery tube is disclosed. There is a foam tube having one end mounted to the delivery tube and another end mounted to a foam generator. The delivery tube slides within the guide tube. There is a cable mounted to the delivery tube and to a motor reel on an opposite end. Included is a control panel communicatively coupled to the motor reel and the foam generator. The mixer of a ready-mix truck is aligned underneath the delivery tube. The controller is operated to control volume and rate at which foam is to be delivered by the foam generator. The delivery tube is positioned to accurately delivery the foam in the mixer to mix the foam with concrete to produce foam concrete.