A mixer vehicle system includes a mixer vehicle and a remote management system. The mixer vehicle includes a chassis and a vehicle body. The vehicle body comprises a plurality of subcomponents. The plurality of subcomponents includes a cabin, a mixing drum, a charge hopper, and a chute. The mixing drum is movable relative to the chassis to agitate a mixture. The charge hopper is movable relative to an aperture of the mixing drum. The chute is pivotally coupled to the mixer vehicle. The remote management system is configured to monitor and adjust a property of the mixture. The remote management system includes a sensor and a device. The sensor is configured to detect information corresponding to the property of the mixture and generate an input signal. The device is configured to recover a signal from the remote quality management system and cause at least one mixture property to change.

A concrete mixer vehicle includes a mixer drum, a chute, and a controller. The mixer drum has an inner volume configured to hold a mixture for transportation and placement. The chute is configured to receive mixture exiting the mixer drum and direct the mixture. The controller is configured to receive a selected mode of operation of the mixer drum and the chute. The selected mode of operation is selected from a set of multiple modes of operation of the mixer drum and the chute. The controller is configured to adjust an operation of at least one of the mixer drum or the chute to cause at least one of the mixer drum or the chute to operate according to the selected mode of operation.

A washout system for a concrete mixer vehicle includes a plurality of valves, a plurality of nozzles, and a controller. The plurality of valves are configured to (i) be fluidly coupled to a pump and a fluid tank and (ii) receive a fluid from the pump. One or more of the plurality of nozzles are fluidly coupled to a respective one of the plurality of valves. Each of the plurality of nozzles are configured to provide the fluid to a respective target when the respective one of the plurality of valves is selectively activated to an open position. The controller is configured to monitor a plurality of washout parameters during operation of the concrete mixer vehicle and initiate one of a plurality of washout modes in response to a subset of the plurality of washout parameters being satisfied for the one of the plurality of washout modes.

In accordance with one embodiment, a method is provided that includes providing a liquid nitrogen storage system configured to cool a supply of liquid nitrogen to a temperature below the vapor point of liquid nitrogen; coupling a piping system with the liquid nitrogen storage system to convey a portion of the supply of liquid nitrogen from the liquid nitrogen storage system; coupling the piping system with a liquid nitrogen control valve configured to control a flow of liquid nitrogen to at least one liquid nitrogen dispensing head; disposing the at least one liquid nitrogen dispensing head above a conveyance device operable to convey an aggregate stream of a concrete batching plant during use; and disposing the at least one liquid nitrogen dispensing head in a position to dispense an output flow of liquid nitrogen onto the aggregate stream of the concrete batching plant during use.

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.

An apparatus and method for producing fluid concrete include a first mixer configured to mix at least water and cement so as to make a low fluidity concrete having consistency class ≤S2, a truck mixer that can be configured to mix the low fluidity concrete with further water so as to make a fluid concrete having consistency class ≥S2, and a water supply and at least a cement supply configured so that the apparatus or method can produce fluid concrete. The apparatus and method include a control and adjustment unit, connected to the water supply and at least to the cement supply, configured to selectively control and adjust the introduction of water and cement into the first mixer and the introduction of further water into the cement mixer.

A mobile industrial mixing apparatus includes a frame, a mixing chamber, a motor, a storage bin, and a transport mechanism. The mixing chamber is coupled to the frame and includes a housing, a top end, and a bottom end, and includes a mixing mechanism disposed within the mixing chamber, the mixing mechanism mixing an industrial powdered bulk material with a liquid. A discharge opening allows a mixture of the industrial powdered bulk material and the liquid to leave the mixing chamber. The motor is coupled to the mixing mechanism and drives the mixing mechanism. The storage bin is coupled to the frame and is disposed proximate to the bottom end of the mixing chamber, the storage bin receiving the mixture of the industrial powdered bulk material and the liquid. The transport mechanism is coupled to the frame and transports the mixing chamber and the storage bin.

A concrete mixer vehicle includes a mixer drum, a chute, and a controller. The mixer drum has an inner volume configured to hold a mixture for transportation and placement. The chute is configured to receive mixture exiting the mixer drum and direct the mixture. The controller is configured to receive a selected mode of operation of the mixer drum and the chute. The selected mode of operation is selected from a set of multiple modes of operation of the mixer drum and the chute. The controller is configured to adjust an operation of at least one of the mixer drum or the chute to cause at least one of the mixer drum or the chute to operate according to the selected mode of operation.

Volume of a concrete mix load in a rotatable mixer drum is determined using an in-and-out sensor probe system wherein the probe submerges into and exits from the concrete during mixer drum rotation and provides data to a processor used in the system for calculating volume of the concrete mix load based on the data. To take into consideration any concavity, convexity, and/or cascading surface flow effects that can hinder accurate determination of the concrete load volume, the processor is configured to compare original batch volume and rheology of the concrete load monitored during drum rotation. The calibration of load volume involves a comparison between real-time data and historic data stored in processor-accessible memory, and further take into account the speed and tilt of the mixer drum (such as caused by roadway conditions), the concrete mix design, and other factors.

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.