A concrete washout and water recycling apparatus has a water tank with a capacity of at least 250 gallons, having an input aperture in a top portion of the water tank, and an outlet aperture on a bottom portion of the water tank, which has a release valve. The apparatus further includes a mounting structure for mounting the water tank on the cement truck, and a water channeling system. The system has a first pipe and a second pipe, the first pipe having a proximal end, a distal end, and a diameter, the proximal end being connected to the input aperture of the water tank. The second pipe has first end, a second end, and a diameter, the first end being connected to the distal end of the first pipe, and the second end having a connector valve.

A system and process for detecting dynamic segregation in concrete rotated within a mixer drum, such as mounted on a delivery truck. A system processor is programmed to monitor an instantaneous and averaged rheology parameter and to deploy protocols for detecting segregation. A first protocol comprises monitoring the averaged slump during and immediately after a jump in drum speed of at least plus or minus four rotations per minute and detecting when a change in the averaged slump value meets or exceeds a threshold; and a second protocol comprises monitoring the instantaneous slump when the mixer drum is rotating at a constant speed for at least three successive rotations and detecting when the instantaneous slump value meets or exceeds a threshold limit. Once segregation is detected, one or more operations can be initiated, such as initiating an alarm or adjusting the mix.

A chute assembly for directing cement from a cement truck is disclosed. The chute comprises an elongate chute of generally u-shaped cross section fabricated from UHMWPe and comprising an upper end and a lower end, a plurality of reinforcing rods arranged along a length of and encased within the UHMWPe, one end of each of the rods adjacent the upper end and another end of each of the rods adjacent the lower end, a pair of u-shaped collars, an upper one of the collars adjacent the upper end and a lower one of the collars adjacent the lower end, and a fastener for securing each of the collars to their respective rod ends. A method of fabrication is also disclosed.

A container for receiving and transporting residual washout concrete or cement from concrete handling apparatus comprising a rectangular top frame member including two lateral top frame members and two transverse top frame members, the top frame members affixed at their distal ends thereby forming the rectangular top frame member, and a rectangular bottom frame member including two lateral bottom frame members and two transverse bottom frame members, the bottom frame members affixed at their distal ends thereby forming the rectangular bottom frame member, wherein the top and bottom frame members are oriented in substantial parallel planes, and including rigid side frame members affixed to both the top frame member and the bottom frame member, thereby maintaining the substantial parallel relationship between the top and bottom frame members, further including side plate members affixed to the side frame members, and a bottom plate member affixed to the bottom frame members, the side and bottom plate members together with the top, bottom, and side frame members forming a concrete or cement tight container.

The invention discloses an automatic processing irrigation truck for concrete pier for bridge pier, and includes a body plate, a bottom plate is fixed on the end surface of the body plate, and a storage block is fixed on the right side of the end surface of the bottom plate. A processing mechanism is provided in the storage block, and the processing mechanism includes a stirring cavity with an opening facing upward. The agitating chamber is used for containing concrete. The agitating chamber is provided with a rotatable drive shaft. Ten ten agitating rods are evenly fixed on the drive shaft. The device can be used for bridge pier during transportation. The processing of concrete, by means of stirring and spiral circulation, can not only make the processing fully, but also prevent the subsequent layering of the concrete, ensure the quality of the concrete, and use spiral transportation when needed.

A concrete mixer vehicle includes a mixer drum, an additive admixture system, and a controller. The additive admixture system includes an air inlet valve, a fluid valve, an air valve, and a pump. The controller is configured to operate the additive admixture system to transition the additive admixture system between an additive addition mode, a drain mode, and a system clear mode. The controller transitions the additive admixture system into the additive addition mode and operates the pump until a desired amount of an additive is added to the mixer drum, transitions the additive admixture system into the drain mode for a predetermined amount of time in response to the desired amount of additive being added to the mixer drum, and transitions the additive admixture system into the system clear mode for a predetermined amount of time to clear stagnant fluid or built up mixture from the additive admixture system.

A drum control system includes one or more processing circuits having programed instructions to control a drum assembly to rotate a drum at a first, unmixed speed to mix drum contents received by the drum where the drum contents including ingredients of a concrete mixture, acquire drum contents data indicative of a property of the drum contents from a mixture sensor and monitor the property of the drum contents as the drum rotates, acquire a target property for the drum contents upon delivery, determine a second, mixed speed based at least partially on the target property, and control the drum assembly to rotate the drum at the second, mixed speed in response to determining that the property of the drum contents indicates that the ingredients have been sufficiently mixed.

A vehicle includes an engine, a drum, a drum drive system, and a control system. The drum drive system includes a pump configured to pump a fluid through a hydraulic system and a motor positioned to rotate the drum to agitate drum contents. The control system is configured to perform a calibration test to determine a baseline operating pressure of the fluid in the hydraulic system, perform a buildup detection test to determine a current operating pressure of the fluid in the hydraulic system, and determine that there is a buildup of the drum contents within the drum in response to a difference between the baseline operating pressure and the current operating pressure exceeding a threshold differential. In some embodiments, the calibration test and the buildup detection test are only performed if a temperature of the fluid exceeds a threshold temperature.

This disclosure describes volumetric mobile powder mixer (VMPM) systems and methods for VMPM operation and use. The VMPM is providing with a number of storage compartments (or bins) for liquid or solid ingredients including at least one powder storage bin, a powder transport system, a dust handling system, a solid/liquid mixing system, a cellular foam generator, a product delivery system, and a controller capable of monitoring the delivery and mixing of each of the ingredients, as well as the discharge of the final product. The controller determines if the proper mixture is being discharged by the VMPM and, if not, alerts the VMPM operator. In an automated embodiment, the VMPM controller is also configured to independently control the delivery and mixing of each of the ingredients, as well as the delivery of the final product.

A pigment and concrete mixer includes a pigment tank fluidly connected to a mixing auger by a hose. A pump is configured to pump pigment from the pigment tank to the mixing auger. A motor is operable to control the pump and adjust a flow rate of the pigment within the hose. The present invention adds color pigment to concrete in controlled flow for consistent color throughout concrete mix. The flow is adjusted to different rates for different color variation.