An ultrasonic generation device and a concrete forming system are provided. The ultrasonic generation device includes a housing, a rotary vibration member, and a shaft body. The housing is provided with an air inlet. The rotary vibration member is disposed in the housing. The shaft body is relatively fixed to the housing, the rotary vibration member is sleeved on the shaft body, and the rotary vibration member and the shaft body are rotatable relative to each other. The shaft body is provided with a main air passage and a jet hole, a first end of the main air passage is in communication with the air inlet and a second end of the main air passage is in communication with the jet hole, the jet hole is provided in the shaft body at a position corresponding to the rotary vibration member.

An ultrasonic generation device and a concrete forming system are provided. The ultrasonic generation device includes a housing, a rotary vibration member, and a shaft body. The housing is provided with an air inlet. The rotary vibration member is disposed in the housing. The shaft body is relatively fixed to the housing, the rotary vibration member is sleeved on the shaft body, and the rotary vibration member and the shaft body are rotatable relative to each other. The shaft body is provided with a main air passage and a jet hole, a first end of the main air passage is in communication with the air inlet and a second end of the main air passage is in communication with the jet hole, the jet hole is provided in the shaft body at a position corresponding to the rotary vibration member.

Systems and methods for increasing fluidity of a shear-thinning material during transit using an energizer which is coupled to a conveyance and configured to impart energy to the shear-thinning material as it is transported by the conveyance, thereby increasing the fluidity of the Material source Conveyor Form material. The conveyance may comprise any of a wide variety of transport means, including pumps, hoses or other conduits, conveyor belts, bins or buckets, chutes, hoppers, or the like. The energizer may use elements that generate mechanical vibrations, electromagnetic waves, acoustic waves, or the like to transfer energy to the shear-thinning material. The energy-imparting elements may be at a localized portion of the conveyance, or at multiple locations along a transport path of the conveyance, and may be controlled by a controller based on such parameters as sensed characteristics of the shear-thinning material or environmental conditions.

Systems and methods for increasing fluidity of a shear-thinning material during transit using an energizer which is coupled to a conveyance and configured to impart energy to the shear-thinning material as it is transported by the conveyance, thereby increasing the fluidity of the Material source Conveyor Form material. The conveyance may comprise any of a wide variety of transport means, including pumps, hoses or other conduits, conveyor belts, bins or buckets, chutes, hoppers, or the like. The energizer may use elements that generate mechanical vibrations, electromagnetic waves, acoustic waves, or the like to transfer energy to the shear-thinning material. The energy-imparting elements may be at a localized portion of the conveyance, or at multiple locations along a transport path of the conveyance, and may be controlled by a controller based on such parameters as sensed characteristics of the shear-thinning material or environmental conditions.

A manual cement mixer having a mixing box with an open top, generally planar front side and rear side panels, and arcuate, parabolically curved, right and left sides forming left and right arcuate troughs, and a medial trough disposed therebetween, the troughs defining a mixing volume; a base frame for supporting said mixing box; and pivoting means for mounting said mixing box on said base frame and for manually inducing oscillations in said mixing box.

Provided herein are compositions, methods, and systems related to 3D printing a reactive vaterite cement composition, comprising feeding a composition comprising reactive vaterite cement through a 3D printing machine; printing a 3D printed reactive vaterite cement product; and curing the 3D printed reactive vaterite cement product by transforming reactive vaterite cement in the 3D printed reactive vaterite cement product to aragonite and/or calcite during and/or after the curing.

Vibration devices for a mixing machine are disclosed, including, for example, a vibration transmission device, a transmission shaft, first bearing(s), a first bearing seat, second bearing(s), a second bearing seat, and a mixing shaft. In some embodiments, the transmission shaft may pass through the first bearing seat, and may be supported in the first bearing seat via at least two bearings. Further, one end of the transmission shaft may be connected to the vibration transmission device, and the other end of the transmission shaft may be connected in a fixed manner to the second bearing seat. In addition, the second bearing seat may be connected to a shaft head at one end of the mixing shaft via the second bearing, and, in some implementations, the rotational center line of the transmission shaft may be arranged so as to be offset from an outer axis of the second bearing.

Vibration devices for a mixing machine are disclosed, including, for example, a vibration transmission device, a transmission shaft, first bearing(s), a first bearing seat, second bearing(s), a second bearing seat, and a mixing shaft. In some embodiments, the transmission shaft may pass through the first bearing seat, and may be supported in the first bearing seat via at least two bearings. Further, one end of the transmission shaft may be connected to the vibration transmission device, and the other end of the transmission shaft may be connected in a fixed manner to the second bearing seat. In addition, the second bearing seat may be connected to a shaft head at one end of the mixing shaft via the second bearing, and, in some implementations, the rotational center line of the transmission shaft may be arranged so as to be offset from an outer axis of the second bearing.

A device for producing a concrete includes a cement premixer for mixing a cement suspension, the cement premixer having an ultrasonic probe for preparing a cement suspension, a crystallization tank arrangement with the first crystallization tank, for increasing the early strengths of the concrete, and a concrete mixer for producing a concrete mixture from the premixed cement suspension, in particular with the addition of aggregates.

A device for producing a concrete includes a cement premixer for mixing a cement suspension, the cement premixer having an ultrasonic probe for preparing a cement suspension, a crystallization tank arrangement with the first crystallization tank, for increasing the early strengths of the concrete, and a concrete mixer for producing a concrete mixture from the premixed cement suspension, in particular with the addition of aggregates.