摘要:
A plant for the production of slabs from a mixture of agglomerate comprises a station (50) with a mixture distribution unit (52) which pours the mixture onto the inner surface of a slab forming mould (11) present in the station. The mould (11) is provided with a sheet (15) of plastic protective material arranged above the inner surface of the mould and which forms the surface for contact with the mixture which is introduced into the mould by the distribution unit (52). The station comprises air suction means which are coupled/connected to suction ducts (54) which are present in the mould and which emerge with their front end inside the mould in a zone of the mould situated between the inner surface of the mould and the sheet (15), so as to allow the suction of air between the sheet and this inner surface and bring the sheet (15) against this surface by means of a vacuum. A method for the production of slabs is also described.
摘要:
A manhole base liner (1), in particular for a wastewater manhole, has a base body (2) which comprises a tread surface (3) and at least one pipe connection opening (5). The base body (2) is produced in one piece from flexible material with a wall thickness, with which it can be bent together substantially arbitrarily in at least partial regions.
摘要:
A formliner can be used to make textures as well as secure and seal objects to form a poured wall. The formliner includes a layer of foam material defining a plurality of object locations separated by raised portions. Each raised portion can define an airspace thereunder.
摘要:
This cement mortar panel with prestressed biaxial reinforcement is formed by a slab of cement mortar which, having a thickness ranging from 2 to 7 cms, includes a biaxial reinforcement. The slab has occluded in the cement mortar mass means for versatile operating on the panel assembly allowing for its handling and/or fixation to a building structure, which versatile operating means constitute of themselves, on one part, means for retaining them in the set mass of cement mortar and, on another part opposite to the former, anchoring means either for panel handling members or members for its fixation to the building structure.
摘要:
A method for producing a concrete shaft bottom which comprises a drain having a defined shape. Concrete is introduced into a bottom mold that comprises a mold jacket and a mold bottom. On the mold bottom, a molded body forming the negative shape of the drain is disposed to configure the drain. The invention allows for the inexpensive and mechanized production of a shaft bottom having an individual drain. For this purpose, the molded body is configured from at least one molded piece that is fixed on the bottom mold, especially on the mold bottom. The molded piece is adapted to the dimensions of the defined shape of the drain and is removed from the shaft bottom once or while the formwork is dismantled from the shaft bottom.
摘要:
A forming mold having a base member 10, and a resin layer 20 formed on the base member 10. The base member 10 has a rigidity higher than that of the resin layer 20. On the surface of the base member 10, the resin layer 20 having a thickness (Tb) of 1 mm or more is formed through lining or a similar technique. Then, the surface of the portion of the resin layer 20, the portion to be serve as a forming surface, is machined (e.g., end-milled) for finishing so that the thickness of the portion is reduced from Tb to Ta, whereby a forming surface P1 is completed. The forming surface P1 has a form accuracy as high as that attained by a forming surface of a forming mold produced through machining without employing a resin layer.
摘要:
The invention relates to a method for producing a concrete shaft bottom which comprises a drain having a defined shape. According to said method, concrete is introduced into a bottom mold (1) that comprises a mold jacket (2) and a mold bottom (3). On said mold bottom (3), a molded body (8) forming the negative shape of the drain is disposed to configure the drain. The aim of the invention is to allow for the inexpensive and mechanized production of a shaft bottom having an individual drain. For this purpose, the molded body (8) is configured from at least one molded piece (9) that is fixed on the bottom mold (1), especially on the mold bottom (3). The molded piece (9) is adapted to the dimensions of the defined shape of the drain and is removed from the shaft bottom once or while the formwork is dismantled from the shaft bottom.
摘要:
A mold assembly having a mold cavity formed by liner plates, at least one being moveable, an actuator having an actuator axis, and a force multiplier formed by first and second drive elements, the first drive element positioned off-axis from the actuator axis and in mechanical communication with the moveable liner plate, the second drive element operatively coupled to the first drive element, and the actuator configured to provide a first force having a first magnitude in a first direction along the actuator axis to the second drive element which moves the first drive element and the moveable liner plate in an extending direction, wherein a magnitude of a force applied to the moveable liner plate resulting from compression of dry cast concrete in the mold cavity that is required to move the moveable liner plate in a direction opposite the extending direction is greater than the first magnitude.
摘要:
A mold assembly for use with an automated dry cast concrete machine including a plurality of mold cavities, each mold cavity formed by a plurality of liner plates, wherein at least one liner plate of each mold cavity is moveable between an extended position and a retracted position relative to an interior of the mold cavity. The mold assembly further includes a master bar in mechanical communication with the at least one moveable liner plate of each of the mold cavities, and an actuator configured to drive the master bar in a first direction and a second direction, which is opposite the first direction, to respectively direct movement of the at least one moveable liner plate of each of the mold cavities between the extended and retracted positions.
摘要:
A translucent building block and method of manufacturing the same where the block has at least two oppositely oriented outer surfaces between which extend a plurality of translucent members that are mounted to a retainer which supports the translucent members spaced inwardly of opposite free ends thereof which extend outwardly from the retainer to points adjacent the at least two outer surfaces and wherein a plurality of openings are provided through the retainer to permit passage of cast material during introduction of the material about the translucent members within a mold during a manufacturing process.