A drive apparatus for a mobile operating machine, comprising at least one internal combustion motor, an articulated arm to deliver concrete and a pumping unit to pump the concrete from the drum to the articulated arm. The drive apparatus comprises hydraulic pumps configured to pump a working fluid and to determine the drive of the pumping unit and of the articulated arm. The apparatus also comprises at least one electromechanical machine connected to the internal combustion motor, to the hydraulic pumps, and to an electric accumulator.

A mobile operating machine comprising a motor vehicle provided with at least one internal combustion motor which cooperates with a movement unit to move said motor vehicle, an articulated arm able to deliver concrete and a pumping unit configured to pump the concrete from said drum to said articulated arm. At least one of either the articulated arm or the pumping unit is connected to a respective hydraulic pump configured to pump a working fluid and determine the drive of said articulated arm and/or respectively said pumping unit. The mobile operating machine also comprises at least one electromechanical machine connected to said internal combustion motor, to said hydraulic pump, and to an electric accumulator.

The invention provides methods and compositions for treating wash water from concrete production with carbon dioxide. The treated wash water can be reused as mix water in fresh batches of concrete.

The invention provides methods and compositions for treating wash water from concrete production with carbon dioxide. The treated wash water can be reused as mix water in fresh batches of concrete.

A drum drive system includes a controller configured to control a prime mover, a variable displacement pump, and a variable displacement motor of the vehicle to provide a target drum speed for a drum of the vehicle. To provide the target drum speed, the controller having programmed instructions to (i) initially operate the variable displacement motor at a maximum motor displacement and operate the variable displacement pump at a pump displacement that provides the target drum speed without needing to actively manipulate a prime mover speed of the prime mover, (ii) increase the pump displacement and decrease a motor displacement without needing to actively manipulate the prime mover speed while still providing the target drum speed, and (iii) increase the prime mover speed if necessary to maintain the target drum speed in response to the pump displacement reaching a maximum pump displacement and the motor displacement reaching a minimum motor displacement.

A quality control system of the invention allows controlling, image analysis and continuous visual monitoring of aggregates and sand processing, and physical properties and workability of fresh concrete and concrete mixes, which are manufactured from the aggregates and sand, and then transported to construction sites and used there for construction purposes. The system of the invention comprises visual monitoring devices (100), stationary or mobile, installed or remotely used at quarries, concrete plants, in concrete trucks and at the construction sites. The method for continuous visual monitoring of the aggregates, sand and concrete is based on image or video processing and analysis of the aggregates and sand, fresh concrete, concrete mixes or precast concrete, the concrete slump levels, segregation and bleeding, homogeneity of the mixture and consistency.

A cleaning system is disclosed for cleaning concrete residue from a concrete mixer truck. The cleaning system may include a water delivery system having one or more conduits configured to deliver pressurized water to one or more spray headers positioned at various back-end portions of the truck. The cleaning system further includes one or more valves configured to control the flow of pressurized water through the one or more conduits to the one or more spray headers. In various embodiments, the one or more valves are manually operable to control the release of water to the spray headers. In other embodiments, the one or more valves are controlled by a computing device through an electrical coupling such as a communication bus. The cleaning system may be configured to clean different portions of the truck using different sets of spray headers at different times as part of a washing protocol.

A vehicle includes a rolling chassis structure and a working component coupled to the rolling chassis structure. The rolling chassis structure includes a chassis, a non-working component, and a control interface. The non-working component is coupled to the chassis and is configured to facilitate transit operations for the rolling chassis structure. The control interface is disposed in a cab area of the chassis. The control interface is communicably coupled to the non-working component and is configured to control operation of the non-working component. The working component is configured to move relative to the chassis and is communicably coupled to the control interface. The control interface is configured to control movement of the working component.

A vehicle including a chassis, a lift axle coupled to the chassis and including a tractive element, a lift actuator coupled to the lift axle, a location sensor configured to provide location data indicating a location of the vehicle, and a controller operatively coupled to the lift actuator and the location sensor and configured to control the lift actuator to reposition the lift axle based on the location data.

Globally our environment comprises structures built to perform a meet different requirements including residential, commercial, retail, recreational and service infrastructure. Whilst, millions of tons of construction materials are deployed annually the quality control procedures in many instances have not changed to reflect today's demands. Accordingly, it would be beneficial to provide construction companies, engineering companies, infrastructure owners, regulators, etc. with means to automated testing/characterization of construction materials during at least one of its manufacture, deployment in construction and subsequent infrastructure life. It would be further beneficial for such automated methods to exploit self-contained data acquisition/logging modules allowing them to be employed with ease at the different points in the life cycle of a construction material and/or construction project.