Abstract: Method and apparatus for casting prefabricated concrete products with a substantially horizontal slipform casting process, where the concrete mass is fed in at least one feeding stage to a slipform casting mold compacting and defining the product to be cast, wherein at least one part is embedded in the concrete mass after the at least one concrete mass feeding stage and before the final compaction of the upper surface of the product to be cast.

Abstract: Method and apparatus for casting prefabricated concrete products with a substantially horizontal slipform casting process, where the concrete mass is fed in at least one feeding stage to a slipform casting mold compacting and defining the product to be cast, wherein at least one part is embedded in the concrete mass after the at least one concrete mass feeding stage and before the final compaction of the upper surface of the product to be cast.

Abstract: A method for casting a hollow core concrete product with a substantially horizontal slipform casting process, where concrete mass is fed at least in one feeding stage through a limited cross-section (5, 6, 7) moving progressively along with the cast, and at least one core is formed in the concrete product to be cast with a core forming member (4), wherein the thickness of webs between the cores of the product to be cast are changed during the slipform casting process by changing the width of the at least one core forming member (4). The invention also relates to such an apparatus and a core forming member.

Abstract: A method for adjusting a sidewall unit (1) of a casting mold for concrete products, which sidewall unit comprises a support structure (2, 32, 42) and a mold surface plate (3, 3?, 33, 43) fixed to the support structure, and which sidewall unit is fixed on a casting bed (8), wherein the mold surface plate comprises at least two portions (3, 3?) extending along the length of the sidewall unit and connected to the support structure (2) and the vertical position of at least one of the portions (3), defined by orientation of the sidewall unit (1) fixed on a casting bed (8), is adjusted to form a gap (9) extending along the length of the sidewall unit between the portions. The invention also relates to such a sidewall unit.

Abstract: An apparatus for sawing cured slipform cast concrete products, which apparatus comprises a frame with wheels, and a concrete saw connected movably to the frame, wherein the apparatus comprises a brushing unit for cleaning slipform casting bed.

Abstract: A method for casting a hollow core concrete product with a substantially horizontal slipform casting process, where concrete mass is fed at least in one feeding stage through a limited cross-section (5, 6, 7) moving progressively along with the cast, and at least one core is formed in the concrete product to be cast with a core forming member (4), wherein the thickness of webs between the cores of the product to be cast are changed during the slipform casting process by changing the width of the at least one core forming member (4). The invention also relates to such an apparatus and a core forming member.

Abstract: A method for adjusting a sidewall unit (1) of a casting mold for concrete products, which sidewall unit comprises a support structure (2, 32, 42) and a mold surface plate (3, 3?, 33, 43) fixed to the support structure, and which sidewall unit is fixed on a casting bed (8), wherein the mold surface plate comprises at least two portions (3, 3?) extending along the length of the sidewall unit and connected to the support structure (2) and the vertical position of at least one of the portions (3), defined by orientation of the sidewall unit (1) fixed on a casting bed (8), is adjusted to form a gap (9) extending along the length of the sidewall unit between the portions. The invention also relates to such a sidewall unit.

Abstract: An auger feeder for concrete mix, comprising a helical segment (1), whereby the auger feeder comprises an insert (2) mounted on an upstream end of the auger feeder, said insert being manufactured in a material softer than that used for manufacturing the auger feeder's helical segment (1), and said insert comprising means (4) for fastening the auger feeder to a casting apparatus. The invention also comprises a method for manufacturing such an auger feeder, and a slipform-casting apparatus equipped with such an auger feeder.

Abstract: An apparatus for sawing cured slipform cast concrete products, which apparatus comprises a frame with wheels, and a concrete saw connected movably to the frame, wherein the apparatus comprises a brushing unit for cleaning slipform casting bed.

Abstract: Method and apparatus for casting a concrete product with a substantially horizontal slipform casting process, wherein the concrete mix is fed at least in one step through a limited cross-section moving progressively along with the cast, whereby the height of the product forming part (1) is changed during the cast. The invention also comprises a product forming part (1) having an adjustable height.

Abstract: A method and an apparatus for casting concrete products substantially with a horizontal slipforming process, the concrete mass in said method being fed by means of at least one feed element (2) through a limited cross section (13, 7, 8) for forming a concrete product, whereby the feed elements (2, 5, 15, 16) produce a two-directional compacting motion for compacting the concrete mass.

Abstract: A casting mold sidewall unit including a sidewall part restricting the outer surface of the concrete product to be cast, as well as a sidewall part support structure, said sidewall unit including at least one removal device extending through the sidewall part, said removal device being at least partly movable outwardly from the sidewall part surface level in order to remove the sidewall unit from the hardened concrete product. Also, a removal unit to be connected to the sidewall unit.

Abstract: Method and apparatus for attaching a part forming a lifting lug to fresh, prestressed hollow-core slab or massive slab, wherein the part forming the lifting lug is embedded by vibrating at least partly through the upper surface of the slab, after which the part forming the lifting lug is turned by vibrating, so that the lower parts of the lifting lug set themselves under the reinforcing strands of the slab.

Abstract: An auger feeder for concrete mix, comprising a helical segment (1), whereby the auger feeder comprises an insert (2) mounted on an upstream end of the auger feeder, said insert being manufactured in a material softer than that used for manufacturing the auger feeder's helical segment (1), and said insert comprising means (4) for fastening the auger feeder to a casting apparatus. The invention also comprises a method for manufacturing such an auger feeder, and a slipform-casting apparatus equipped with such an auger feeder.

Abstract: Method and apparatus for casting a concrete product with a substantially horizontal slipform casting process, wherein the concrete mix is fed at least in one step through a limited cross-section moving progressively along with the cast, whereby the height of the product forming part (1) is changed during the cast. The invention also comprises a product forming part (1) having an adjustable height.

Abstract: A method is provided for fabricating a concrete slab in a substantially horizontal slip casting process method, concrete mix is fed into a mold through a delimited cross section moving progressively in the casting process so as to form a concrete product of a desired shape. Onto the surface of the casting bed (1) is placed a core (3, 9, 10, 11) capable of delimiting the cross section of the concrete product (5, 5?) so as to provide an opening or a provision for an opening in the bottom surface of the slab. A core is provided for obtaining an opening or a provision for an opening. The structure and/or material of the core is/are such that the core is capable of yielding in vertical direction. A core may also be a multipart core, the outer part of which becomes detached from the inner part of the core in conjunction with lifting off the concrete slab from the casting bed.

Abstract: A method is provided are for fabricating a concrete product in a substantially horizontal slip-form casting process, in which method concrete mix is fed into a slip-form mold of a defined cross section moving progressively in the casting process so as to give a concrete product of a desired shape. The input power need of the concrete mix feed and compaction is measured, whereupon the travel resistance of the casting machine is controlled based on the value of a measured process variable. Therefore, quality variations in a slip-form cast product that are caused by changes in the density of the concrete mix and the travel resistance of the casting machine are eliminated.