摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.