NO772025L - PROCEDURES FOR KEEPING FLOWER PULFILES ("V {SPOON FILES") - Google Patents

Description

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; The invention relates to a procedure for holding thick-. ' liquid applied foil C"Liquid foils") especially vertically,

i1 inclined or overhanging flat

I So-called "liquid foils" are seam- and jointless rubber-elastic ' protective screens on a plastic basis, which are applied as viscous, viscous liquids to the surfaces to be protected and which in a short time hardens into a rubber-elastic, seamless foil on; due to chemical reactions. Two-component I materials are used, which are blended together in a known manner shortly before; In the application.'

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"Although these liquid foils, as experience has shown, also show \ a good adhesion when applied to vertical surfaces, difficulties arise under special conditions, especially when it concerns high, vertical surfaces or inclined, especially overhanging surfaces. The liquid foils are also exposed to similar stresses when thick layers are to be applied that increase foils

■the weight per surface unit and thus places special demands on the foil's ability to adhere. The possibility of using the liquid foils was therefore limited, both with regard to the thickness and with regard to the height of the walls to be protected, and on-

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the performance on inclined or overhanging surfaces has been . !possible only under particularly favorable conditions. So far, ready-made foil webs have been provided with knobs or ribs of different designs and these foil webs have been pressed into a fast-hardening mortar layer, which had previously been applied to the concrete walls to be protected. After curing

. The pv mortar was then the individual foil webs glued or welded together. With this type of application of foil webs, the need for an extra layer of mortar has been a disadvantage, because the curing time requires a

: cone-shaped knobs or "noppers" are also used. After filling the free space between the internal formwork 2 and the external formwork 3 with concrete 5, the cords 1 are also pulled off together with the formwork. Cords that may remain in the concrete can be easily removed with pliers, then a partial break-out

in the inward-facing groove edges do not have any unfortunate consequences. The Wedge-shaped grooves or conical recesses 4 which remain,

In the concrete, the putty is now full of thixotrope/. mixed with SLiquid foil material and immediately afterwards, before the hardening of the jmaterial, liquid foil is applied to the concrete surface to be covered,<*>for example by rolling it on, applying it with a trowel or ■spraying it on. In some cases, it can be advantageous to allow the joints to run intersecting horizontally and vertically,

i For the production of cement pipes or similar bodies are ; |it is advantageous to place the cords on the formwork in the direction in which the formwork is to be removed, in the same way that when preparing vertical surfaces with sliding formwork, cords should be arranged in the direction of movement of the formwork.

j If a sliding formwork of steel plates is used,; |for example, of half-shell, for the formation of the inner walls of the pipe, j instead of the cords, profile strips can be used, especially of ice steel or other metals.

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Claims (5)

l jl. Procedure for keeping the viscous applied foil (liquid foil) in particular on vertical, inclined or overhanging surfaces, ^ characterized by the fact that the surfaces are provided with sub- ice-cut notches or cone-shaped recesses (4), that nottverr-I (the cut or recess is filled (spattered) with thixotropic; set liquid foil material and that immediately afterwards, before the material is hardened, the surfaces with the filled grooves or recesses (4) are coated with liquid material by rolling on; "applying with a trowel or spraying." ' <i>j 2. Procedure in accordance with claim 1, character-> js e r t in that the grooves or recesses are formed by the application of cords with a grooved cross-section or cone-shaped knobs of soft plastic (PVC) on the mold side of the formwork element (2) which is to cover the wall side to which liquid foil is to be applied, as well as filling the formwork with the molding compound ( concrete), and that the notes or out- ; 'the savings are exposed by the cords (1) or the knobs being, pulled out from the hardened concrete together with the formwork elements (2) or after these have been removed. 3. Method in accordance with claim 1 or 2, characterized in that the cords (1) are arranged in intersecting directions on the formwork (2). l 4. Method in accordance with claim 1 or 2, characterized in that the cords when using sliding formwork; Arranged in the formwork's direction of movement. 5. Procedure in accordance with claim 4, grade i-jjs, in that instead of the cords profile strips Saw metal are used.