A system to manufacture a native soil flowable fill onsite includes hydro excavation equipment having a suction hose. In addition, the system includes a plurality of onsite debris tanks, where each onsite debris tank is configured to be coupled separately to the suction hose and to store native soil vacuumed from an adjacent hole at an onsite excavation. The system also includes a mixing apparatus inside each of the onsite debris tanks configured to mix the native soil from the adjacent hole with additional components to form a native soil flowable fill for the respective adjacent hole.

There is provided a thermocouple temperature detector mounting structure for a mixing tank for which the temperature detecting end of the thermocouple temperature detector mounted on the high viscosity mixing material mixer is capable of measuring temperature in real time and for which the mechanical load applied, by the flow of the material being mixed, on the temperature detecting end is made as small as possible. A temperature sensing portion with a hemispherical tip, of a protective inner tube that accommodates a thermocouple element of a thermocouple temperature detector, is mounted on a mixing tank, for mixing a high viscosity mixing material, so as to project from the end of a protective tip that projects into the mixing tank. With the outside diameter of a projecting base section of the protective tip that projects into the mixing tank being 2 to 3 times that of the protective inner tube, and with the projecting length (h) that projects into the mixing tank being the same length as the difference of the radius of the projecting base section of the protective tip and the radius of the protective inner tube, the outer circumferential face of a shoulder section of the protective tip, that is from the projecting base section of the protective tip to the site connecting to the outer circumference of the protective inner tube, is formed in a convex arcuate face that has a radius that is the difference of the radius of the projecting base section of the protective tip and the radius of the protective inner tube.

A system to manufacture a native soil flowable fill onsite includes hydro excavation equipment having a suction hose. In addition, the system includes a plurality of onsite debris tanks, where each onsite debris tank is configured to be coupled separately to the suction hose and to store native soil vacuumed from an adjacent hole at an onsite excavation. The system also includes a mixing apparatus inside each of the onsite debris tanks configured to mix the native soil from the adjacent hole with additional components to form a native soil flowable fill for the respective adjacent hole.

A method to manufacture a native soil flowable fill includes hydro excavating native soil to form a hole at a first excavation, transferring the native soil from the first excavation to a debris tank, and adding a pozzolan component, cement and water to the debris tank. The method also includes mixing the native soil in the debris tank using a mixing apparatus to form the native soil flowable fill, and transferring the native soil flowable fill back to the first excavation into the hole. The native soil flowable fill comprises 30-90% by weight of native soil, 0-50% by weight of the added pozzolan component, 0-50% by weight of the cement, and 10-45% by weight of the water.

The present invention relates to systems and methods for mixing various components of asphalt concrete in a mixer and then dispensing the asphalt concrete from the mixer. While the mixer can include any suitable component, in some instances, it includes a heated container, a mixing mechanism that is configured to mix asphalt and an aggregate to form the asphalt concrete within the heated container, and an auger that is configured to force the asphalt concrete out from the heated container. In some cases, a portion of the auger is disposed in a heated cover. In some cases, the cover further comprises a gate that is configured to open (and close) to allow the asphalt concrete to flow from (and be retained in) the heated container. Other implementations are also described.

A method to manufacture native soil flowable fill includes hydro excavating native soil to form a hole at a first excavation, and transferring the native soil from the first excavation to a mixing tank. The method also includes adding a pozzolan component, cement and water to the mixing tank, mixing the native soil in the mixing tank with the added pozzolan component, cement and water to form the native soil flowable fill, and transferring the native soil flowable fill back to the first excavation and into the hole.

The present disclosure relates to a blender having blades whose orientation angle is changeable, even while the blender is in operation. The blender 100 includes a housing 110 with inlets (140a, 140b) to allow inflow of ingredients and an outlet (140c) to allow outflow of blended ingredients. The blender 100 incorporates an external shaft 122 with the blades 123 rotatably coupled to it, and an internal shaft 121 inside the external shaft 122. The blender 100 incorporates a first driving unit 130 to rotate the external shaft 122 and blades 123 about a direction along a length of the housing 110 to allow blending of the ingredients. The internal shaft 121 having engaging means coupled to back of the blades 123 such that a linear displacement of the internal shaft 121 using a second driving unit 121, enables change in orientation of the blades 123.

The present disclosure relates to a blender having blades whose orientation angle is changeable, even while the blender is in operation. The blender 100 includes a housing 110 with inlets (140a, 140b) to allow inflow of ingredients and an outlet (140c) to allow outflow of blended ingredients. The blender 100 incorporates an external shaft 122 with the blades 123 rotatably coupled to it, and an internal shaft 121 inside the external shaft 122. The blender 100 incorporates a first driving unit 130 to rotate the external shaft 122 and blades 123 about a direction along a length of the housing 110 to allow blending of the ingredients. The internal shaft 121 having engaging means coupled to back of the blades 123 such that a linear displacement of the internal shaft 121 using a second driving unit 121, enables change in orientation of the blades 123.

A method to control a mixer includes an input to a control and command unit including a plurality of input data correlated to a formulation of a mix, a detection step to detect the values of an electric quantity characteristic of the electric power line of a drive unit in the mixer, a processing step where data is processed to calculate the overall active power, and to carry out verifications, comparing the data processed with one or more of the respective data introduced among the input data, in order to transmit to a controller that commands the mixer, a consent signal to discharge the mix or an anomaly signal.

A method to control a mixer includes an input to a control and command unit including a plurality of input data correlated to a formulation of a mix, a detection step to detect the values of an electric quantity characteristic of the electric power line of a drive unit in the mixer, a processing step where data is processed to calculate the overall active power, and to carry out verifications, comparing the data processed with one or more of the respective data introduced among the input data, in order to transmit to a controller that commands the mixer, a consent signal to discharge the mix or an anomaly signal.