The invention relates to a method for manufacturing a reinforced concrete component (1, 1′), in particular a generatively produced reinforced concrete component (1, 1′), a reinforced concrete component and a manufacturing system for manufacturing a reinforced concrete component. In particular, the invention relates to a method for manufacturing a reinforced concrete component (1, 1′), comprising: creating a first concrete layer (20) and a second concrete layer (22) with a generative method, preferably with a shotcrete method, arranging a positioning element (100, 102, 104, 110, 120, 122, 124, 126, 128, 130) for fixing a reinforcement unit (200), wherein the positioning element is arranged with a supporting section (106) between the first concrete layer (20) and the second concrete layer (22) and protrudes with a fastening section (108) from the first concrete layer and from the second concrete layer (22), arranging at least one reinforcement unit (200) for reinforcing the concrete component (1, 1′) on the positioning element.

A three-dimensional printing system for reinforced concrete and a nozzle therefore. The system employs an extruder for extruding unreinforced concrete and a concrete reinforcement feeder is for feeding one or more elongate reinforcement members. The nozzle has an outlet and is operatively connected to the extruder and the concrete reinforcement feeder to receive the unreinforced concrete from the extruder and to receive the one or more elongate reinforcement members from the concrete reinforcement feeder. The nozzle combines the unreinforced concrete from the extruder and the one or more elongate reinforcement members from the concrete reinforcement feeder into a reinforced concrete extrusion and imparts the reinforced concrete extrusion through the outlet.

A concrete construction made by 3D concrete printing having two or more layers of cementitious material extruded one above the other, and a reinforcing structure reinforcing the two or more layers. The reinforcing structure has at least two flexible longitudinal elongated steel elements running in lengthwise direction, and one or more flexible transverse steel elements forming an angle with the lengthwise direction so that these flexible transverse steel elements are present in the two or more layers. The structure also has a positioning element for positioning the at least two flexible longitudinal elongated elements and the flexible transverse steel elements, a polymer coating or yarns making stitches. The polymer coating or the stitches are applied on the at least two flexible longitudinal elongated steel elements, on the flexible transverse steel elements and on the positioning element thereby making a bond.

A concrete construction made by 3D concrete printing having two or more layers of cementitious material extruded one above the other, and a reinforcing structure reinforcing the two or more layers. The reinforcing structure has at least two flexible longitudinal elongated steel elements running in lengthwise direction, and one or more flexible transverse steel elements forming an angle with the lengthwise direction so that these flexible transverse steel elements are present in the two or more layers. The structure also has a positioning element for positioning the at least two flexible longitudinal elongated elements and the flexible transverse steel elements, a polymer coating or yarns making stitches. The polymer coating or the stitches are applied on the at least two flexible longitudinal elongated steel elements, on the flexible transverse steel elements and on the positioning element thereby making a bond.

The present disclosure is related to a mold device for molding a waffle slab, wherein a plurality of connecting structures made of steel bars protrude from the sides of the waffle slab, the mold device comprising: a plurality of steel molds provided at both sides of each of the plurality of connecting structures and surrounding the waffle slab, each of the plurality of steel molds having a top surface, which has a hole therein; a plurality of auxiliary devices respectively disposed at the sides of the waffle slab and having through holes corresponding to holes in the plurality of steel molds; and a plurality of fasteners; wherein the plurality of fasteners respectively pass through the through holes of the plurality of auxiliary devices and are fixed into the holes of the plurality of steel molds so that each of the plurality of auxiliary device transversely connects the top surfaces of the plurality of steel molds.

A concrete construction (100) made by 3D concrete printing that contains: two or more layers (102, 106) of cementitious material extruded one above the other, and at least one elongated steel element (104, 108) reinforcing at least one of the two or more layers. The elongated steel element (104, 108) is provided with a first crimp. Due to the crimp, a good anchorage in concrete is obtained and the anchorage force is predictable, since the standard deviation of the anchorage force is very small. The elongated steel element can be a single steel wire with a diameter D, the amplitude of the crimp ranges from 1.05×D to 5.0×D. The elongated steel element can also be a steel with steel filaments having a maximum diameter d. The amplitude of the crimp ranges from 1.05×d to 5.0×d.

The present invention discloses a TRC assemble permanent column formwork and a manufacturing method thereof, which belongs to the technical field of reinforced concrete building construction. The TRE assemble permanent column formwork comprises first panels, second panels, circumferential bolts, longitudinal bolts, nuts and gaskets; the formwork is manufactured from an engineered cementitious composite ECC and a woven fabric net; the first panels are used for assembling the column formwork at the two ends of a column, and the second panels are used for assembling the column formwork in the middle section of the column; the panels are provided with preformed bolt holes, and the bolt holes among the panels are corresponding to each other for bolt connections; the bolts include circumferential bolts and longitudinal bolts. The TRE permanent column formwork provided by the present invention can reduce material waste, labor cost, and project cost. Besides, the panels have advantages of easy and firm assembling, convenient transportation and low manufacturing cost, and the formwork has great application prospects.

A method of fabricating a fiber preform filled with refractory ceramic particles, includes placing a fiber texture including refractory ceramic fibers in a mold cavity; injecting a slip including a powder of refractory ceramic particles present in a liquid medium, the slip being injected into the pores of the fiber texture present in the mold cavity, injection being performed through at least a first face or a first edge of the fiber texture; and draining the liquid medium of the slip that has penetrated into the fiber texture through the porous material part, the draining being performed at least through a second face or a second edge of the fiber texture different from the first face or the first edge, the porous material part also serving to retain the refractory particle powder in the pores of the fiber texture to obtain a fiber preform filled with refractory particles.

The present invention relates to a building system for erecting a building structure. The building system comprises a plurality of precast transportable concrete wall panels; each wall panel comprising a reinforcement structure and a plurality of cast-in connecting inserts, each connecting insert being located at a predetermined position; and a precast transportable concrete floor panel, the floor panel also comprising a reinforcement structure and a plurality of cast-in connecting inserts, each being located at a pre-determined position, the floor panel further comprising a recess along at least a portion of a perimeter of the floor panel. The building system is configured such that when each precast wall panel is positioned in a substantially upright position in the recess of the floor panel, connecting inserts of two adjacent panels align so that the panels can be connected using a plurality of mechanical fasteners.

The present invention relates to a building system for erecting a building structure. The building system comprises a plurality of precast transportable concrete wall panels; each wall panel comprising a reinforcement structure and a plurality of cast-in connecting inserts, each connecting insert being located at a predetermined position; and a precast transportable concrete floor panel, the floor panel also comprising a reinforcement structure and a plurality of cast-in connecting inserts, each being located at a pre-determined position, the floor panel further comprising a recess along at least a portion of a perimeter of the floor panel. The building system is configured such that when each precast wall panel is positioned in a substantially upright position in the recess of the floor panel, connecting inserts of two adjacent panels align so that the panels can be connected using a plurality of mechanical fasteners.