A prefabricated component mold includes a number of side plates and a removable film. The side plates cooperatively define a molding cavity for molding a prefabricated cement component. The removable film is configured to be removably arranged on an inner side of the side plates for preventing the prefabricated cement component from contacting the side plates.

The invention comprises a concrete form. The form comprises a first concrete forming panel having a first primary surface adapted for forming and contacting plastic concrete and a second primary surface opposite the first primary surface; a layer of insulating material contacting and substantially covering the second primary surface of the first concrete forming panel; and an insulating blanket adjacent the first concrete forming panel. A method of using the concrete form is also disclosed.

A method for casting a construction element includes: using a CAD technique designing mould bodies 12 comprising mould-halves 12.1, 12.2, 12.3, 12.4, 12.5, 12.6, 12.7, 12.8; printing the mould-halves on a 3D printer which includes an adhesive dispensing system; providing a locating formation 16 on mould-half 12.7; reinforcing the mould-halves with two polyurethane or polyurea coatings; applying form wax to the mould-halves; printing a conduit 18 on a 3D printer; locating the mould-halves at a construction site and securing the mould halves to one another; locating the conduit 18 relative to the mould-halves by means of the locating formation 16; pouring concrete into the assembled mould so as to embed the conduit 18 within the concrete; and allowing the concrete to cure; removing the mould-halves and repeating a desired number of times.

The present invention relates to a method for the preparation of dies for moulds for the production of tiles with three dimensional texture.

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.

A method for preparation of a mold (10) intended to form a slab from a mixture of agglomerate comprising the steps of depositing over the mold surfaces a sheet (15) of PVA-based plastic material so as to form with it a surface for subsequent contact with the mixture introduced into the mold for forming the slab, whereby in at least some areas a layer (14) of a fluid agent containing PVA in a solution is interposed between the sheet (15) and the mold surfaces. A plant for carrying out the method and a method for production of a slab are also described.

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.

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.

A kit for forming a monument includes a backplate having a top surface, a plurality of tiles that each have a face with a raised symbol on the face configured to be positioned selectively on the top surface of the backplate, and a perimeter frame sized to mate with the backplate to form a cavity. The tiles can be located in positions on the top surface of the backplate, the perimeter frame can be affixed to the backplate, and a moldable material can be flowed into the cavity where the moldable material can harden. The perimeter frame, backplate and tiles can then be removed from the hardened moldable material, leaving a hardened material with a surface having a recess formed by the raised symbol.

In order to enable stable provision of an upward release tube-type ceramic filter used in a molten metal bath and having a side wall with a height of 300 mm or greater, this method for manufacturing a ceramic filter, which is an upward release tube-type integrally molded article for removing unwanted substances from molten metal, has: a step for kneading a mixture of an aggregate comprising ceramic particles, a prescribed binding agent, and water to prepare a base material; a step for integrally forming an upward release tube-type ceramic filter precursor from the prepared base material; step for drying the precursor; a step for providing a retainer for the dried precursor for supporting a side wall of the precursor; a step for subsequently sintering the precursor; and a step for removing the retainer after sintering.