Provided are a concrete manufacturing method capable of preventing neutralization of concrete and oxidation of a reinforcing rod in reinforced concrete, and a method for manufacturing a reinforced concrete structure using the same. The concrete manufacturing method uses nitrogen dissolved water and is characterized by including: a step of generating nitrogen dissolved water by injecting nitrogen gas into water to replace oxygen and carbon dioxide dissolved in the water with nitrogen; and a step of generating a ready-mixed concrete by kneading the nitrogen dissolved water, cement, an aggregate, and an admixture. The method for manufacturing a reinforced concrete structure is characterized by forming a reinforced concrete structure using a ready-mixed concrete manufactured by a concrete manufacturing method using nitrogen dissolved water.

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 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.

The present disclosure is related to filter elements and more specifically to filter elements for removing dust from air. In an embodiment, an inventive filter element includes a housing having a first side and a second side, filter material in the housing, a space between the filter material and the first side of the housing for forming a suction chamber, and at least one hole in the first side, whereby the area within the circumference of the side of the filter material facing the first side of the housing is larger than the area of at least one hole.

A concrete mixing apparatus includes: a rotatable mixing drum; an internal combustion engine including an exhaust system for discharging exhaust gas containing carbon dioxide; a diverter pipe connected in fluid communication with the exhaust system and the mixing drum; and means for cooling the exhaust gas upstream of the mixing drum.

A system for delivery ingredients to a cement mixing barrel has a container. The container is divided into a plurality of compartments, each compartment used to store one ingredient for making cement. A dispensing opening is formed in a bottom area of each of the plurality of compartments. A delivery trough is positioned below each dispensing opening transferring the ingredient from each of the plurality of compartments to the cement mixing barrel.

An aggregate bin heater assembly having a bin for receiving aggregate therein and a plurality of fluid inlets supported at vertically spaced apart elevations relative to the bin for distributing a heating fluid into the aggregate within the bin, further includes a control system for controlling distribution of the heating fluid. A pressure sensor associated with at least an uppermost one of the fluid inlets so as to be arranged to sense pressure within the bin at the respective elevation. A controller determines a low pressure condition if the pressure sensed by the pressure sensor is lower than a prescribed normal pressure. A valve associated with the uppermost one of the fluid inlets shuts off the flow of heating fluid to the uppermost one of the fluid inlets responsive to determination of the low pressure condition by the controller.

This invention encompasses rubber modified asphalt cement compositions, as well as systems, apparatuses, methods for preparing, as well as methods for using rubber-modified asphalt cement compositions.

A production device for manufacturing a product in the form of a sheet or a block, including: an initial agitator (1), a primary conveyor belt (2) and a mixing agitator (3); each of initial agitators (1) is configured with the primary conveyor belt (2), one or more stones or a stone-like granular material having a selected particle size and a binder are initially mixed in the initial agitator (1) and then an initial mixture is obtained; the mixing agitator (3) includes a rotating container for undertaking a material; the initial mixture is conveyed to the mixing agitator (3) through the primary conveyor belt (2); more than one initial agitator and matched primary conveyor belts thereof are disposed around the mixing agitator (3) at intervals.

A vehicle CO.sub.2 capture and utilization system includes a concrete mixer vehicle and a vehicle exhaust capture system. The concrete mixer vehicle comprises a vehicle exhaust and a mixer tank. The vehicle exhaust capture system is located onboard the concrete mixer vehicle. Additionally, the vehicle exhaust capture system includes one or more fluid pathways that fluidly couple the vehicle exhaust and the mixer tank.