DE2713487A1 - Insulated hard foam panel for supporting rendering - has reinforcing fibre glass lattice mat impregnated and sheathed with synthetic resin - Google Patents

Abstract

The reinforced insulating panel for bearing rendering or plastering incorporates reinforcement made up from a fibreglass mat, with individual strands impregnated and sheathed with a rigid binding mass of pref. modified synthetic resins. The strands have partial and dispersed connection with the hard foam panel. Granulated material, such as quartz sand, may be embedded in the synthetic resin sheath, and bonded to the surface. There can be variations in Fibre, strand thickness, mesh width and interval between mat and panel surface, for ready adaptation to fitting requirements.

Description

Insulating plaster base plate

For the heat and cold insulation of the external masonry of Buildings include the following systems and features to date.

teclunischen stand: 1. Cladding elements made of rigid foam panels with applied outer layer e.g. ceramic tiles, aluminum etc.

2. Hard foam or Mineral fiber boards as such on the facade surface be mounted and then covered with curtain wall elements. this are the so-called rear-ventilated facades.

3. The buildings with the plastered facade occupy the widest possible space For this purpose, hard foam panels with wood wool cement linings were used as well Rigid foam panels that are reinforced with expanded metal ribs as a plaster base. Wood and Metal are difficult to use for large plastered surfaces. Wood because of moisture absorption , Metal because of its thermal insulation properties.

For plaster facades with intermediate insulation, today The following system is enforced: On the external wall of the building that is to be insulated (Facade) are hard foam panels with a circumferential staggered fold with adhesive mortar The joints are then repaired and surface-leveled The surface prepared in this way is now coated approx. 2 mm thick with adhesive mortar as a concealed plaster in which a glass silk fabric is inserted in such a way that it is no longer visible In this state, the surface is leveled off = moved and in one more A covering layer is applied with a spatula and the finishing plaster is applied on top of this. These Work on the plaster reinforcement on the construction site requires great care is therefore very labor-intensive. Z0B. Is ain working with the fiberglass mats when exposed to wind not namely The relatively low hardness and density of the plaster it is unable to take up essential parts of the thin threads of glassy fabric. This so-called thin-bed process sets a top layer in the choice of material and the layer = strength very narrow limits and is therefore close to the load limits which are posited by external interactions.

The disadvantage is that working on the Construction site takes place and no prefabrication of elements is present.

The object of the invention is, compared to the last-described method a rigid foam board connected to a reinforcement grid made of glass silk fabric, which It is unnecessary to make the glass fiber reinforcement on the construction site to carry out the glass fabric reinforcement in such a way that the forces of the fiberglass = strands can be fully transferred into the coating (plaster), due to the type of sheathing and impregnation of the fiberglass strands with modified synthetic resin a safe Resistance to external influences and full utilization of the high static Values of the glass fiber is reached. It is possible to have a rigid foam board reinforced in this way as a prefabricated element mechanically - with nails, bolts, dowels and so on - thereby Gluing or a mixture of both techniques. The choice in the Fastening methods result in more security and less effort for the substrate treatment is of great technical importance, especially when it comes to the subsequent insulation of old buildings and economic advantage.

Strong and @@ go d of the reinforcement fabric as reinforcement grids can be made from the fact that a largely free choice of the coating - plaster - in thickness and composition is possible is up to a coating with Kora ik tiles.

For the creation of the insulating plaster base plate according to the invention Proceed as follows: A glass silk fabric formed primarily from glass silk roving and with a mesh size of more or less than 15 mm -15 mm is provided as @orm- is the size of the plate = overlay with a modified mass of synthetic resin e.g.

Epoxy, polyester, etc. so prepared with overlapping strips of glass iron lattice mat that has been soaked on two sides that form an angle and is pre-determined on the rigid foam board with a continuous or perforated layer of pre-determined Thickness of foam-grained material, for example fine quartz sand, is placed on top and sprinkled over with the same material to cover it and brought to the hardening stage.

After hardening we @ the sand material from the plastic top = flat @@ esc @@ tt @ t.D @ s Glass fabric now shows itself as a st @ biles gi @ ter, whose strands of thread the synthetic resin in = b @ ttang and U @ sheathing its highest possible tensile strength reach.

The U @ a @@ ntelung increases the surface of the thread strands by one Much, s @ that a high degree of power transmission from the fiberglass strands is effected via the synthetic resin compound into the coating compound Manufacturing process embedded in the synthetic resin mass respectively. predominantly at the Surface ground grains yield grains of quartz sand or other material a good Bond to the coating material, so that a shearing between the coating and reinforcement in the event of tensile stress due to stressing and shearing processes is excluded.

The inventive coordination of the viscosity of the resin composition and applied amount to the thread strands for also adjustable height and area coverage, as well as The grain size of the quartz sand layer, for example, on the rigid foam board, according to the invention # Synthetic resin mass of the soaked soaked up to the rigid foam board surface Glass silk grid that creates anchoring between both parts and at the same time the distance between the two parts is fixed after curing. Height and density of the Sand heap determines the distance between the glass fiber mesh mat and the plate surface.

According to the invention, it can be advantageous in terms of production Using the method described above, separate the mesh mats from the @artschaumplatte In this process, instead of on the element rigid foam board a plate of the same size with the described layer of quartz sand which is impregnated with synthetic resin The glass silk mesh mat is placed on top and scattered over it in this case designed as a separating layer, the quartz sand layer can bezw.

the impregnation of the mesh mat should be carried out so that a contact of synthetic resin from the grid mat with the plate surface is not done.

The hardened grid mat can now be on the underside with a Binder e.g. adhesive mortar based on dispersion and coated with the rigid foam board It is also guaranteed that the coating (plaster) sufficient undercut and bracing are removed.

A lattice mat produced in this way can also be used as an element by itself be used for reinforcement. Due to the predetermined thickness of the fiberglass strand and mesh size is given a wide range of possible designs z. B.

a shape like welded wire mesh. Such reinforcement meshes can be used instead of steel reinforcements, depending on the application conditions are unfavorable for corrosive material.

Claims (1)

Claims 1. Insulating plaster base plate with reinforcement, thereby marked that the reinforcement consists of a glass = silk lattice mat mainly modified individual threads or roving strands from a high-strength binding compound Synthetic resins are impregnated and coated and partially and in scatter with the Have rigid foam board composite, 2.) Reinforcement according to claims. 1.) characterized in that Granular material, e.g. quartz sand, embedded in the synthetic resin coating of the mesh mat strands and is tied to the surface. 3.) Element according to claim 1.) and 2o) characterized in that the thickness of the fiberglass strands mesh size and distance of the grid mat to the plate surface varies and can thus be adapted to the intended use 4.) The production of the insulating plaster base plate according to claim 1.) -3. ) characterized in that the Lattice mat the strands of which are soaked and coated with synthetic resin compound on the rigid foam board covered with a layer of grain material, e.g. quartz sand, and covered with the same material Percolating synthetic resin material of the grid mat connects to the rigid foam board and fixes the position and the distance between the grid mat and the rigid foam board surface. 5.) Manufacturing method of the insulating plaster base plate according to claim 1.) to 3.) characterized in that the synthetic resin-impregnated mesh mat separately placed on a plate r.lit separating layer and quartz sand layer and sprinkled over it The lattice mat produced in this way without a bond @ird @ach Aus = hardening on the underside partially with a binding agent E.g. plastic dispersion mortar and iait the rigid foam board in bond brought. 6.) 6.) grid mat according to cont. 5.) is produced Manufactured according to the invention as a reinforcement element for other different purposes and in strand thickness, mesh size and size adapted to the intended use.