DE2505018A1 - Mould for ornamental concrete building elements - is made from soln. or mixt. of rubber and filler based material - Google Patents

Abstract

Mould for the prodn. of building elements made of concrete provided with relief decoration is made by building up several layers of the following mixt. or soln. applied to a pattern: 35% rubber latex; 25% synthetic rubber; 8% unpressed synthetic rubber; 14% blast furnace soot; 13% ground chalk; 1.2% milled sulphur; 1% filler, type Valcavit TH; 0.6% filler, type Vulcacit Captan; 0.5% paraffin wax; 0.5% stearin; 0.6% cellophonium; 0.3% softener; and 0.3% ZnO. This mixt. is used with a readily volatile solvent to obtain the required plasticity and, after solidification it is removed from the pattern. A simple method of mfg. mould with the required surface profile.

Description

Die for structural elements made of concrete with relief ornaments Od. The like., A method for producing such a component and then obtained Component The present invention relates to a die for manufacture from ornamental elements made of concrete or similar materials for buildings, to one with it preserved ornamental element and the manufacturing process of this element to obtain ornamental decorative effects in relief, both in the interior as can also be used on the exterior of the buildings. The process can also be used for manufacturing of negative forms after any ornament in the relief can be used to this to reproduce.

There are known the manufacturing process of matrices with which one What appears to be concretes is preserved, this is also preserved Rubber, PVC, wood, Metal or other equivalent material.

On one of the sides of this material is made by mechanical or manual means running the model being reproduced or which is the negative this model represents.

Ornamental concretes are also known, which itLt help from inside empty PVC pipes are produced, which are braided, representing a certain model and placed on the bottom of a well-known template, then over this Model one or more layers of concrete, possibly with an appropriate one in between Reinforcement laid. After the concrete has hardened and detached, one obtains on the visible side of the concrete is engraved the one obtained with the PVC pipes Profile.

The above methods require complicated technology and a corresponding material. This often suffers from the materials listed manufactured samples under the vibration of concrete or its thermal treatment, resulting in deterioration of the pattern on the visible side of the concrete element leads. Likewise, the removal of the element from the die causes difficulties, Defects are particularly noticeable on protruding edges of the ornamentation.

The present invention overcomes the disadvantages of the known methods in that for the purpose of producing ornamental elements made of concrete in large Diversity and with the possibility of reproducing any model - a die used will, by hardening several layers one with a brush on the one to be reproduced Model applied solution is made; the matrix obtained in this way consists of a mixture in which natural and synthetic rubber predominate. The die has a smooth side and one with ornaments reproduced from the model in relief.

In order to use a die to create the prefabricated concrete element after a make the known template, the die is placed with the profile facing up, whereupon a corresponding 1: concrete is poured, which in some cases can be colored can. After the concrete has hardened, the element is peeled off.

When the hardening time of the painted on the ornaments of the stencil If the solution is to be shortened, smooth strips can be used that run through prior hardening of the same solution can be obtained and that by heating through known means become plastic and cover the relief shape of the model.

An example of the implementation of the invention is given below given in connection and with Figures 1-13.

Fig. 1 is a plan view of a model to be reproduced.

Fig. 2 is a cross-section along line A - A through the model according to Fig. 1.

FIG. 3 plan view of the model from FIG. 1 with the possibility of implementation the matrix applied to the model.

FIG. 4 shows a cross section along line B - B of FIG. 3.

Fig. 5 shows a view of a negative die.

FIG. 6 shows a cross section along line C - C in FIG. 5.

Fig. 7 shows a plan view of a template or concrete casting mold with inserted die.

FIG. 8 shows a cross section along line D - D in FIG. 7.

9 shows a plan view of a template group or

a casting bed for 3 ornamental panels with different profiles and Dimensions.

Fig. 10 shows schematically a section through a casting template with inserted die (the die and the poured concrete are hatched).

11 shows a longitudinal section through a obtained according to the invention Relief element (in particular from the device according to FIG. 10).

Fig. 12 shows a longitudinal section through an ornament element according to the invention with reinforcement and insulation layer.

13 shows a structural element according to the invention in a diagrammatic manner.

For the production of ornamental prefabricated building elements according to the invention the die 1 is used with the prefabricated panel corresponding to the dimensions. The die has a smooth side a; has the opposite side b of the die the same ornaments in relief as the model 2, which is decorative on one side c Has profiles that are reproduced.

For the production of the die l one proceeds as follows: on the relief-provided side c of the model 2, which is made of any material such as - stone, wood, plaster of paris, metal, plastics, etc. can be made by successively painting a few layers-3 from a solution of rubber Latex 30 - 40 9Q Synthetic rubber 20 - 30, furnace soot 10 - 15, -grinded Chalk 10 - 15% ground sulfur 1 - 2, plasticizer O - -1% applied.

The different degree of plasticity of this solution is determined by adding a solvent with high evaporation capacity in a more or less large one Amount achieved.

The applied layers cover the relief shape of the model When they dry, a rubber crust forms on the visible side of the model.

By loosening this crust one obtains the die 1, ~ which on its side b represents the negative of the model to be reproduced.

When the reproducible model made of unbreakable material with sufficient separation strength, such as stone, metal, plastic, ceramics etc., several identical negative matrices can be made using the above method getting produced.

A prefabricated ornament construction element 4 according to the invention made of simple concrete or reinforced concrete, with or without thermal insulation layers, has a smooth side and the opposite side is in relief, with the same shapes as the die model modeled.

The prefabricated building element 4 can have straight sides or with a projection 7 are provided.

This element is made as follows: First, a die is made 1 with the profiled side b facing up in a template standing on a table 6 inserted and fixed on the table.

Then concrete is poured over the profile of the die.

Before casting the concrete, a 1 - 3 cm thick colored concrete layer can be applied.

When making a reinforced concrete element with a profile on the visible Side and thermal insulating layers inside, the manufacturing technology differs not from the one previously applied, with the remark that after pouring one Concrete layer is applied over the profile of the formliner, which is protected by pouring a concrete layer (Fig. 12).

After the concrete has hardened, the formwork of the element, which carried out by raising it by known means and removing the die will.

When model made of materials with low separation strength such as Oak bark with its distinctive profile is to be reproduced, the after above method hergestell th concrete elements for the production of further Serving matrices.

To speed up production, smooth strips or

Arches of different thicknesses made of the same material as the one previously described Die used; these strips are placed on a heating table and over this strip comes another heating plate.

By heating the material provided in strips, these become three-dimensional and cover the profile of the model.

The die and the manufacturing process of the ornamental elements are loud Invention have the advantage that it allows originals of any kind from any material can be easily reproduced.

The ornamental prefabricated building made with the die according to the invention -ement has the advantage that no reworking is required; this can be done directly for the facades civil and socio-cultural buildings are used.

The possibility of ornamental coloring on the visible side, as well the variety of the patterns of these ornaments result in a great diversity of the facades of these buildings.

The manufacturing process for negative matrices can also be plastic Art, for the reproduction of various originals such as sculptures, bas-reliefs be used.

Claims (5)

Patent claims X Die for the production of components with relief decorations from concrete od. The like. Or a method for producing such a matrix, thereby characterized in that there are several layers of the following solution or mixture from approx .: latex rubber 35%, synthetic rubber 25%, -unpressed systhetic Rubber 8%, furnace soot 14%, ground chalk 13%, ground sulfur v 1.2%, Filler type Zulcavit TH 1.0%, filler type Vulcacit Captas 0.6%, paraffin 0.5%, Stearin 0.5%, cellophonium 0.6%, plasticizer 0.3%, zinc oxide 0.3% on the original applied or painted on, with different degrees of plasticity this solution or mixture by adding a fast evaporating Solvent can be achieved, whereupon after solidification of the plastic mass Die is removed from the original. 2. Die for the production of ornament elements according to claim 1, characterized in that it has a smooth side (a) and the opposite side (b) with ornaments in relief, based on a model (2) which consists of different materials, such as z. B. stone, metal, plastic, ceramic, plaster, etc. 3. Decorated in relief BauBkraeat, Manufactured with the aid of a die according to claims 1 and 2 of concrete or reinforced concrete, with or without thermal insulation layers, characterized in that one smooth side (d) and the opposite side (e) are modeled with relief with shapes identical to the original, straight Has sides or a protrusion (f) depending on the type of installation envisaged in the project. 4. Process for the production of a decorated with relief Construction --- iar --- C-- sde, T-otzu characterized in that in a first phase a die facing upwards with the profile is inserted into a known template, after which a corresponding concrete, which in some cases can also be colored, is poured. 5. A method for producing a die for the production of structural elements provided with relief decorations, the die representing a negative impression of the original, characterized in that the strips or sheets obtained from the solution or mixture defined in claim 1 are placed on the original, whereupon a heating device, in particular heating plates, is applied to the strips or sheets.