The invention relates to a method and a device for controlling the delivery rate (P.sub.Q) of a concrete pump (1) for filling a formwork arrangement (2) with a pumpable filling compound (3) as a function of curing-relevant material and environmental parameters (RST), after which the installed filling compound (3) sets within the formwork arrangement (2), comprising the following steps: determining a permissible climbing speed (vsz) for filling the formwork arrangement (2) with the filling compound (3) on the basis of the material and ambient parameters (RST), measuring the static filling compound pressure (p.sub.F) acting on the formwork arrangement (2) during filling, calculating the permissible delivery rate (P.sub.Q) of the concrete pump (1) as a function of the determined permissible rate of ascent (vsz) and the measured static filling compound pressure (p.sub.F) at the formwork arrangement (2).

Provided are a concrete pouring guiding device and a construction method for pouring a concrete tank wall of a sewage treatment tank, wherein the concrete pouring guiding device includes a guiding element and a mounting seat configured to be fixed on an external mounting position; the guiding element is threadedly engaged with the mounting seat, so as to enable the guiding element to move in a first direction with respect to the mounting seat; in the first direction, one end of the guiding element is configured to allow concrete to flow into the guiding element, and the other end of the guiding element is configured to extend to a target position; and the first direction is a length direction of the guiding element.

Systems and methods of shotcrete construction are contemplated whereby guide rails are placed in proximity and forward to a shotcrete receiving surface, with any guide rails disposed directly in front of the shotcrete receiving surface being configured to be offset from the receiving surface allowing shotcrete to be sprayed behind the offset guide rails. Following application of shotcrete, a screed configured to engage with and traverse along at least two of the guide rails may be used to rod the shotcrete via a protruding region of the screed extending beyond the guide rails, thereby removing excess shotcrete and imparting to the shotcrete surface a contour at least partially defined by the configuration of the guide rails and the configuration of the protruding region of the screed. Complex, precise, and even exotic architectural shotcrete installations may be created in this fashion by providing a suitable set of guide rails and screed.

A system for forming a vertical structure through the incremental pouring of wet concrete has a plurality of vertical columns external to the concrete of the vertical structure; a slip form structure comprising a pair of opposing walls forming a bottomless trough; a main frame coupled to the slip form structure, wherein the main frame is supported on, and configured to move vertically along, the vertical columns; and a work platform residing below the slip form structure and main frame, the work platform being supported on, and configured to move vertically along, the vertical columns; wherein the main platform moves independently of the work platform.

Systems and methods of shotcrete construction are contemplated whereby guide rails are placed in proximity and forward to a shotcrete receiving surface, with any guide rails disposed directly in front of the shotcrete receiving surface being configured to be offset from the receiving surface allowing shotcrete to be sprayed behind the offset guide rails. Following application of shotcrete, a screed configured to engage with and traverse along at least two of the guide rails may be used to rod the shotcrete via a protruding region of the screed extending beyond the guide rails, thereby removing excess shotcrete and imparting to the shotcrete surface a contour at least partially defined by the configuration of the guide rails and the configuration of the protruding region of the screed. Complex, precise, and even exotic architectural shotcrete installations may be created in this fashion by providing a suitable set of guide rails and screed.

A system for spraying granular pasty matrices onto buildings. A spray gun for a wet mortar which makes possible the easy, safe and efficient spraying of wet mortars including aggregates with a particle size D50 of between 1 and 15 millimeters. The system which it concerns which includes spray gun for wet mortar provided with gun body, with at least one injector emerging in contacting chamber, at least one spray nozzle for mortar, and at least one connection end piece mounted on inlet of body for flow of mortar. Flow of mortar within the guiding duct of body is monodirectional or multidirectional (angular deviation<30°. The position of injection head of the injector in chamber is adjustable. The mortar is constituted by a pasty matrix including aggregates, fillers and additives. The aggregates have a D50=1-15 mm and a form factor F≠1.

A robotised construction system is provided that includes a cartesian robot that can be automatically lifted as the construction is becoming higher, that is provided with a system of robotic supply of the materials and of the electric and electronic installations and that is provided with specific fabrication tools which work some by the contribution of layers of fluid construction materials. In a cement-based usage in which the cement is setting and having been deposited, by projection of these same materials and others by forming and placing construction elements in a determined position.

A wheeled hose moving device that is movable over a support surface and that is operable to lift and move a concrete supply hose at the support surface. The device includes a wheeled support including a hose lifting device and a hose support element. The hose lifting device is vertically movable between a raised position and a lowered position and is adjustable between a lifting state and a non-lifting state. The hose support element is adjustable between a support state and a non-support state. The hose lifting device is, when lowered to be at the hose, adjusted to engage and lift the hose. As the hose lifting device lifts the hose upward, the hose support element is automatically adjusted from the non-support state to the support state to support the lifted hose.

Systems and methods of shotcrete construction are contemplated whereby guide rails are placed in proximity and forward to a shotcrete receiving surface, with any guide rails disposed directly in front of the shotcrete receiving surface being configured to be offset from the receiving surface allowing shotcrete to be sprayed behind the offset guide rails. Following application of shotcrete, a screed configured to engage with and traverse along at least two of the guide rails may be used to rod the shotcrete via a protruding region of the screed extending beyond the guide rails, thereby removing excess shotcrete and imparting to the shotcrete surface a contour at least partially defined by the configuration of the guide rails and the configuration of the protruding region of the screed. Complex, precise, and even exotic architectural shotcrete installations may be created in this fashion by providing a suitable set of guide rails and screed.

The present invention discloses a concrete construction method for controlling setting time and special equipment thereof. The technical solution comprises processes of mixing, pumping, extruding, forming, setting and hardening. An electric treatment of applying an external electric field to a concrete mixture is provided between the pumping and the extruding process. The mixture treated by the external electric field is immediately extruded through an extrusion outlet. The special equipment comprises a transporting pump, a transporting pipeline and an extrusion device. The extrusion device comprises an equipment for electrical process and the extrusion outlet. By adopting the construction solution and equipment in the present technical solution, an effect on rapid controlling or adjusting the concrete setting time is achieved and an early strength of concrete is rapidly and rationally enhanced. A requirement of adjusting concrete setting time at will before the forming process is met.