Abstract: A method and an apparatus for casting concrete products by mold casting, where concrete mix is fed in a casting mold from a casting apparatus moved above the mold, and the concrete mix is vibrated with a vibrator assembly located at least partially in the area inside a nozzle of the casting apparatus, wherein the concrete mix is vibrated in the area inside the nozzle with the vibrator assembly performing only vertical vibrating motion.

Abstract: Method for casting concrete products, in which method concrete products are cast with a circulating line casting process where mold tables are transferred from one workstation to another, and in which circulating line casting process a plurality of casting molds are formed and equipped on a mold table, wherein the molds of the products to be cast are divided on a different mold tables so that the differences in total complexity of the molds on a single mold table are minimized between mold tables.

Abstract: Method and apparatus for casting concrete products, in which method concrete products are cast with a circulating line casting process where casting mold tables are transferred from one workstation to another, wherein the time which a mold table remains in a workstation is determined and stored for further analysis.

Abstract: Method and facility or apparatus for cutting a slipform cast hollow-core concrete product with water jet cutting, wherein in the outer surface of the fresh cast hollow-core concrete product is formed depressions or grooves in the areas to be cut with water jet cutting before curing of the hollow-core concrete product, which depressions or grooves extend in the area of the hollow-cores of the concrete product.

Abstract: An apparatus for casting a concrete product in a mold, said apparatus comprising a concrete mix container to be moved above the casting mold, a nozzle attached to the mix container bottom for feeding concrete mix from the concrete container in a casting mold, and a vertically movable closing element extending through the concrete mix container in the area of the nozzle, wherein the width of the nozzle in first direction is substantially greater than the width of the nozzle in second direction, which second direction is perpendicular in relation to the said first direction, and said concrete mix container is fixed rotatably around its vertical central axis.

Abstract: An arrangement for casting concrete products, which contains at least one central transfer wagon movable on a path on a center process line for moving the molds/mold tables from one work station for a process stage to another work station on a main level of the production process line, which work stations are located along the path of the central transfer wagon on at least at one side of the path of the center process line. At least one of the central transfer wagons of the arrangement comprises a lifting mechanism by which the molds/mold tables are liftable to at least one upper level.

Abstract: An arrangement for curing concrete products, which contains a curing chamber having several curing cells arranged in at least one column, in which curing cells are located on a vertical stack. The curing cells are formed to curing cell groups, in which one curing cell group contains at least one curing cell, advantageously 2-4 curing cells, and wherein the curing cell group is insulated in respect of other curing cell groups of the curing chamber. A method for curing concrete products in a curing chamber, which includes several curing cells arranged in at least one column, in which the curing cells are located on a vertical stack. In the method the moisture level of curing cells is controlled such that in the curing cells the temperature is desired.

Abstract: A cap for covering a lift hole of a lifting lug of a concrete slab, which cap comprises a flat circular skirt and a central portion, wherein from the lower surface of the flat skirt extends one continuous circular protrusion or a plurality of smaller protrusions in circular formation, wherein the central portion extends upwards from the skirt and is formed to be pressed down so that the upper part of the lifting lug breaks through the central portion.

Abstract: A method and manufacturing facility for casting concrete products with a circulating line casting process, where molds are transferred through production stages along a circulating line, and reinforcements for the concrete products to be cast are prefabricated in a separate reinforcement shop and transferred to the circulating line casting process, wherein the reinforcements are transferred from the reinforcement shop with a carriage to the area located inside the circulating line casting process.

Abstract: Method for lifting a concrete product with a lifting boom and a lifting boom, in which method the lifting boom is moved above the concrete product to be lifted with a crane, lifting hooks of the lifting boom are set in lifting loops located in the concrete product to be lifted, and the lifting is carried out by lifting the lifting boom together with the concrete product with a crane, wherein the location of at least one lifting loop in the concrete product to be lifted is detected by a control system of the lifting boom, which control systems moves at least one lifting hook along the lifting boom to the location of the lifting loop.

Abstract: A method for casting prefabricated concrete products with a circulation line casting process, where casting molds with fresh cast concrete products are moved for curing in a curing area, where the casting molds with the concrete products are stacked to form stacks of plurality of casting molds in the curing area, wherein the stacks of casting molds in the curing area are formed by lifting the casting molds forming the stack from the lowest casting mold of the stack, inserting a new casting mold below the lifted stack, and lowering the lifted stack on top of the inserted new casting mold. The invention also relates to a lifting and stacking apparatus utilizing the method, and to a circulation line casting apparatus equipped with such a lifting and stacking apparatus.

Abstract: A method for the installation of a lifting loop in a fresh hollow core slab, said hollow core slab having its top surface broken for an opening substantially in line with a neck between the cavities, and said method comprises placing in the obtained opening a lifting loop-forming part set to bear against the hollow core slab's pre-stressing strands, the lifting loop-forming part's end sections being placed under the hollow core slab's pre-stressing strands by providing either a permanent or temporary deformation in the lifting loop-forming part. The invention relates also to an apparatus for implementing such a method, as well as to a lifting loop-forming part compatible with the method.

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: A method and an apparatus for casting concrete products with a substantially horizontal slipform casting process, where concrete mass is fed through a restricted cross-section defining the product to be cast, and which restricted cross-section moves progressively along with the casting process in relation to a casting bed, wherein the height of the cast product exiting the restricted cross-section is measured during the casting process, and the height and/or position of the leveling plate of the upper surface of the restricted cross-section is adjusted during the casting process based on the height measurement of the cast product.

Abstract: A method for bracing a lifting loop for a concrete element at least during a concrete element lifting operation effected by using the lifting loop, whereby the lifting loop is at least partially located inside a recess prepared on a surface of the concrete element, in which method at least forces, which are longitudinal relative to a concrete element to be lifted and which are applied to the lifting loop, are conveyed to the concrete element to be lifted by means of a support piece to be set at least partially in said concrete element's recess prepared in association with the lifting loop. The invention relates also to such a lifting loop support piece.

Abstract: A method for the installation of a lifting loop in a fresh hollow core slab, said hollow core slab having its top surface broken for an opening substantially in line with a neck between the cavities, and said method comprises placing in the obtained opening a lifting loop-forming part set to bear against the hollow core slab's pre-stressing strands, the lifting loop-forming part's end sections being placed under the hollow core slab's pre-stressing strands by providing either a permanent or temporary deformation in the lifting loop-forming part. The invention relates also to an apparatus for implementing such a method, as well as to a lifting loop-forming part compatible with the method.

Abstract: A method for controlling concrete mix casting equipment to be dismountably attached to a crane, said casting equipment being controlled on the horizontal plane by moving the crane, so that a substantially vertical motion of the casting equipment is achieved during the operation of the casting equipment by vertical motion of the lifting element of the crane. The invention also relates to a concrete mix casting equipment to be dismountably attached to a crane.

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.