LV10123B - A mineral fibre element and a process for the production of such element - Google Patents

A mineral fibre element and a process for the production of such element Download PDF

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Publication number
LV10123B
LV10123B LV920097A LV920097A LV10123B LV 10123 B LV10123 B LV 10123B LV 920097 A LV920097 A LV 920097A LV 920097 A LV920097 A LV 920097A LV 10123 B LV10123 B LV 10123B
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Latvia
Prior art keywords
binder
mineral fiber
element according
fiber element
mineral fibre
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LV920097A
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Latvian (lv)
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LV10123A (en
Inventor
Kim Brandt
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Rockwool Int
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Publication of LV10123A publication Critical patent/LV10123A/en
Publication of LV10123B publication Critical patent/LV10123B/en

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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/16—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of fibres, chips, vegetable stems, or the like

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Civil Engineering (AREA)
  • Laminated Bodies (AREA)
  • Building Environments (AREA)

Description

1 LV 10123
A MINERAl FIBRE ELEMENT AND A PROCESS FOR THE PRODUCTION OF SUCH ELEMENT
The present invention relates to a mineral fibre element iri particu-lar for use in the production of an insulating layer with a rein-forced surface. DK-B-131952 describes a process for the production of insulating separāting walls of mineral wool blocks wherein the mineral wool blocks are dipped into liquid gypsum plaster wherein their surfaces are covered completely with gypsum plaster before they are combined to a wall and wherein the gypsum plaster is subsequently allowed to harden so as to form a plaster shell on said wall. It is stated that an insulating wall is obtained which is highly fire-retardant and has high sound insulating capacity.
The production of a shell on a wall made from such mineral fibre elements by dipping of the elements into gypsum plaster presents a number of practical problems. Firstly, the known process requires the setting-up on the construction site of plaster-filled vessels of a sufficient size for the mineral fibre elements to be immersed into the plaster and, secondly, the transportation of the elements covered with gypsum plaster from the vessel to the site of use as well as the construction of walls with the wet elements will give rise to a number of handling problems including spillage of gypsum plaster and soiling of the transportation equipmentand the persons who construct the wall.
International patent application No. PCT/DK91/00071 discloses a process for the production of an insulating layer with a reinforced surface wherein mineral fibre elements coated on one or more surfaces and in a zone-bordering on said surface contain an activable binder, are combined to form an insulating layer and wherein the binder is activated. According to a preferred embodiment of said process, mineral fibre elements containing a hydraulic binder, preferably cement, are “iised and the activation of the binder is carried out either on the the site of production to form reinforced elements which are combined on the site of use to form an insulating layer or on the the site of use after the binder-containing mineral 2 fibre sheets have been combined to form an insulating 1ayer. Thus, in the latter case the reinforced surface is not produced until the hydraulic binder has set.
The binder-containing mineral fibre elements are preferably produced by sucking a fine dry activable binder into the surface of the mineral fibre elements. $urprisingly it has now been found that by incorporting a first binder into the surface of the mineral fibre element and coating the binder-containing surface layer with sheet material embedded in a second binder, elements having surprisingly good properties regarding strength and/or binder content are obtained.
The interaction betvveen the binder layer incorporated into the surface mineral fibre element and the sheet material embedded in the second binder results partly in an increase of the point load resistance of the surface-reinforced mineral fibre element and partly in an increase of its punching strength and in particular its punching strength under dynamic influence. The latter property is of major importance when using the mineral fibre elements to form an insulating roof covering or a facade covering which is thus capable of resisting mechanical influence, such as walking, bumps and blows.
As an alternative to an increased strength the amount of binder can be reduced. Thus it has been found that the amount of binder in the cement-reinforced mineral fibre boards can be reduced by 20-50% while maintaining the same or even improving the mechanical properties.
Such a reduction of the binder content results partly in lower production costs and partly in improved heat-insulating properties of the fibre elements, i.e. an improvement of the λ-value.
The presence of the sheet material in the surface layer also improves the bending strength of the element. This is of particular importance when using mineral fibre elements constructed from lamellae of a direction of fibre orientation which is approximately perpendicular to the main surfaces of the elements. In the absence 3 LV 10123 of a reinforcement of the šurface layer vnth a sheet material there is a propensity to crevice formation at the corners of such mineral fibre elements. Thus the sheet material results in an increase of the corner and edge strengths of the elements. 5
The sheet material is preferably selected from the group consisting of non-woven materiāls, woven materiāls and meshes.
In case of a fibrous non-woven material, the weight of the sheet 10 material is preferably between 10 and 100 g/m2, more preferably 20-60 g/m2 and most preferably 30-50 g/m2.
Preferably the sheet material consists of organic or combinations of organic and inorganic fibres but inorganic fibres, such as glass 15 fleeces, may also be used alone. Examples of suitable organic fibres are polyester or polypropylene fibres. An example of inorganic fibres is glass fibres.
It is preferred to use a sheet material wholly or partially 20 consisting of non-woven material provided, hovvever, that it has a reasonable tensile strength, i.e. preferably a tensile strength of between 20 and 600 N/5 cm, more preferably 20-300 N/5 cm and most preferably 20-100 N/5 cm in the machine direction as well as in the cross machine direction. 25
In case of woven material, it is preferred to use a glass cloth or a glass mat. Preferably, the woven material has a weight of between 60 og 150 g/m2. The woven material may be coated, e.g. with plastics. 30 In case of meshes, it is preferred to use meshes made from organic compositions such as polyester or polypropylene or from inorganic material such as glass fibres. The meshes may be coated, if convenient. 35 Moreover, it is contemplated that reinforcing fibres, e.g. glass fibres as such, may be used as the reinforcing material embedded or incorporated into the second binder.
The two binders may be different but it is particularly preferred 4 that the binder which is incorporated into the surface layer of the mineral fibre element and the one in which the sheet material is embedded are identical. 5 The surface layer of the mineral fibre element into which the first binder is incorporated is preferably of a thickness of at least 5 mm and more preferred of between 7 and 15 mm.
Preferred binders comprise hydraulic binders, such as cement, 10 plaster, lime and pozzolanic substances. However, plastic binders and in particular thermo-setting plastic binders may also be used.
In case of a hydraulic binder, the binder should conveniently contain one or more additives. Examples of such additives are 15 setting accelerators, pigments, water-repelling aģents, such as silicone and wax, catalysts as well as adhesion promoters, such as polyvinylacetate and. acrylic compounds. A further preferred binder is Portland cement and when used Portland 20 cement should preferably constitute an amount of 2-15 kg/m2.
When using Portland cement as the second binder it should preferably constitute 0.5-2.5 kg/m2 after setting, and more preferably 0.5-1.5 kg/m2. 25
The density of the mineral fibre element is preferably between 50 and 180 kg/m3 and it is preferably a conventional mineral fibre element, i.e. an element of mineral fibres which are bonded to each other by means of a thermo-setting binder, such as a phenol formai-30 dehyde binder. »
The mineral fibres are preferably rock wool fibres but elements of other types of synthetic inorganic fibres, such as glass fibres and slag fibres, may also be used. 35
In a conventional mineral fibre sheet the fibres are normally oriented parallel with the sheet planē.
Hovvever, the mineral fibre element may also be composed of adjacent 5 LV 10123 lamellae wherein the fibres are predominantly oriented in a direction which is substantially perpendicular to the main surfaces of the element. The lamellae may be interconnected or heid together by the sheet material embedded in the second binder.
When using mineral fibre elements of the lamella type a particularly good penetration depth of the binder is obtained and thereby a particularly good bonding of the reinforcing layer including the sheet material. Furthermore said fibre orientation increases the compression strength of the element.
The invention further relates to a process for the production of a mineral fiber element as described above.
The process is characterized in that a dry particulate activable first binder is sucked into the surface of a mineral fibre element, that the activable binder is activated, that the binder-containing surface layer is coated with a sheet material, that the sheet material is coated with a layer of activated second binder and that the binders are allowed to set.
The process results in a surface-reinforced mineral fibre element having a particularly low delamination tendency and a high strength and in particular as to corner and edge strengths.
According to a preferred embodiment of the process described above the binder-containing surface layer is coated with a layer of activated binder before as well as after application of the sheet material.
This results in a particularly good bonding of the sheet material to the mineral fibre element.
The sucking of dry particulate activable binder into the surface of the mineral fibre element is preferably carried out according to the process described in International Patent Application No. PCT/DK91/00071. A hydraulic binder is preferably used to form the surface layer 6
siīcked into the mineral fib-re element and to form the second binder-containing layer or layers. The latter layer is preferably applied in the form of an aqueous slurry (paste). The activation of the first binder may be effected in different ways depending on the nature of the binder. When the first binder is a hydraulic binder, such as cement, plaster, lime and pozzolanic substances the binder is activated by adding an aqueous medium to the surface layer. The activation of the first hydrau1ic binder is conveniently effected by spraying water onto the surface 1ayer or by treating the surface layer with a mixture of water and water vapour thereby accelerating the setting of the first hydraulic binderJ
The mineral fibre elements according to the invention are particu-larly suitable for use in the production of an insulating layer having a reinforced surface by combination of several such elements. Preferred processes for the production of such insulating layers are described in International Patent Application No. PCT/DK91/00071.
The invention will now be described more in dētai 1 with reference to the following example.
Example
Production of the mineral fibre element according to the invention
Mineral fibre elements having the following product-characteristics were produced:
Mineral fibres: Rockwool® rock wool fibres
Ignition loss: 3.5%
First and second binder: Portland cement
Total binder content: 6 kg/m2 (set) 7 LV 10123
Sheet material: Non-woven polyester material (Freudenberg
Lutradur PE 7230)
The mineral fibre elements are produced in the fo11owing manner:
The starting material used for the mineral fibre element was a lamella board containing a phenol formaidehyde binder, which lamella board was made from interconnected lamellae to obtain the sheet dimensions 100 x 1200 x 600 mm. The lamellae were produced from Rockvvool® rock wool fibres and had a density of 100 kg/m3 and an ignition loss of 3.5%.
The first binder was added to the starting material in the form of dry Portland cement in an amount of 4 kg/m2, the Portland cement being sucked into the surface of the starting material (the lamella board) in the manner described in the Applicant's International Patent Application No. PCT/DK91/00071.
The Portland cement sucked into the surface was activated by spray-ing water in an amount of 1.5 kg/m2 onto the surface.
As the second binder a mixture of Portland cement and water in a 1:1 ratio was used.
An amount of 0.4 kg/m2 of the Portland cement/water-mixture was applied to the board surface in a thin layer. The fibrous non-woven material having the dimensions 1200 x 600 mm (Freudenberg Lutradur PE 7230) was placed on top of the thin layer of Portland cement/-water. Another thin layer of the Portland cement/water-mixture was subsequently applied to the non-woven material in an amount of 0.4 kg/m2.
The setting of the binder present in the surface of the lamella board was then effected by maintaining the impregnated lamella board reinforced with the non-woven material at a slightly elevated temperature and in a humid atmosphere (40*C, 90% R.F.) for seven days and nights. 8
For comparison purposes a mineral fibre element of the same type as the element described above was produced, however, without non-woven material and second binder but with an amount of (first) binder of 9 kg/m2 (set).
In the following examples the first mineral fibre element is refer-red to as "Product A" whereas the mineral fibre element without non-woven material is referred to as "Product B".
Examination of mineral fibre elements
Measurement of insulation value
Measurement of the insulation value (λ) of Product A and Product B, respectively, in the form of sandwich elements of a thickness of 70 mm and 100 mm gavē the following results:
Product thickness Product A Product B 70 mm 46 mW/m/K 54 mW/m/K 100 mm 44 mW/m/K 50 mW/m/K
Thus, the insulation value of the product according to the invention is clearly improved as compared to the corresponding product without non-woven material.
Measurement of point load resistance
The point load resistance was measured as walkability determined with a 50 mm puncher having a punching speed of 7 mm/min.
The point load resistance was measured for-4-d-ifferent mineral-fibre—---- 9 LV 10123 element products of the lamella type, cf. below:
Mineral fibre element Point load resistance (kN/m2) 5 _
Product A 350 Product B 350 Lamella element to which a pressure distributing sheet was adhered, (180 kg/m3), 20 mm 154 Uncoated lamella element 25 20
It appears from the above results that the elements according to the invention (Product A) provide the same high point load resistance as Product B despite a reduced amount of binder (6 kg/m2 as compared to 25 9 kg/m2 - set).
Measurement of corner strength 30 Measurements of the corner strength were carried out for products A and B using the UEAtc tēst "Behaviour under concentric stātie loads at an unsupported point on the roof", Union Europeenne pour l'Agrement technique dans la eonstruetion, deseribed in "General Directive for the Assessment of Roof Insulation for Fiat and Sloping 35 Roofs", M.O.A.T. No. 28:83, section 4.1.5.2(2) (December 1983).
In the tēst the optimum force at 112 mm projected parts was deter-, mined. 10
The follovn'ng results were· obtained:
Mineral fibre element Average optimum load (N/(100·200) mm2) Product A 76 mm 610 Product B 76 mm 533
There is no significant difference between the results obtained for Product A and Product B, but the tēst shows that according to the invention the same high corner strength is obtained despite a reduced amount of binder (6 kg/m2 as compared to 9 kg/m2- set).
The invention will now be described in further detail with reference to the drawing wherein
Fig 1 is a mineral fibre board seeri from above, and
Fig 2 is a blow-up sectional view according to the line II-II of the mineral fibre board according to Fig 1.
In the drawing 1 denotes a mineral fibre board provided with a surface layer 2 containing a set binder. The surface of the mineral fibre board 1 is coated with a sheet material 3 embedded in a layer 4 of a set binder. 11 LV 10123 C 1 a i m s 1. Mineral fibre element particularly suitable for use in the production of an insulating layer with a reinforced surface, c h a -racterized in that it comprises a first binder incorpora-ted into the surface of the mineral fibre element, and that the binder-containing surface layer is coated with a sheet material incorporated into a second binder. 2. Mineral fibre element according to cl ai ml, character-i z e d in that the sheet material is selected from the group consisting of non-woven materiāls, woven materiāls and meshes. 3. Mineral fibre element according to claim 2, character-i z e d in that the sheet material is a fibrous non-woven material which has a weight of between 10 and 100 g/m2. 4. Mineral fibre element according to claims 2 or 3, c h a r a c -t e r i z e d in that the sheet material consists of organic or combinations of organic and inorganic fibres. 5. Mineral fibre element according to any one of claims 2 to 4, characterized in that the sheet material is wholly or partially non-woven and has a tensile strength of betvveen 20 and 600 N/5 cm in the machine direction as well as in the cross machine direction. 6. Mineral fibre element according to any one of the preceding claims, characterized in that the first binder is identical to the second binder. 7. Mineral fibre element according to any one of the preceding claims, characterized in that both binders are hydrau-1ic binders. 8. Mineral fibre element according to claim 7, characterized in that one or both binders contain(s) one or more additives selected from a group consisting of setting accelerators, pigments, water repelling aģents, catalysts and adhesion promoters. 12 9. Mineral fibre element according to any one of the prečeding claims, characterized in that the first and/or the second binder is cement, plaster, lime or a pozzolanic substance, in particular cement or plaster, more particularly cement. 10. Mineral fibre element according to any one of the prečeding claims, characterized in that it has a density of from 50 to 180 kg/m3. 11. Mineral fibre element according to claim 10, characterized in that it is made from rock wool fibres. 12. Mineral fibre element according to any one of the prečeding claims, characterized in that it is composed of ad-jacent lamellae having a dominant fibre orientation is substantially perpendicular to the main surfaces of the element. 13. Process for the production of a mineral fibre element according to claim 1, characterized in that a dry particulate activable first binder is sucked into the surface of a mineral fibre element, that the activable binder is activated, that the binder-containing surface layer is coated with a sheet material, that the sheet material is coated with a layer of activated second binder and that the binders are allowed to set. 14. Process according to claim 13, characterized in that a layer of activated binder is applied to the binder-containing surface layer prior to the application of the sheet material. 15. Process according to claim 13 or 14, characterized in that hydraulic binders are used. LV 10123 13 A mineral fibre element and a process for the production of such element.
ABSTRACT A mineral fibre element comprising a layer (2) of a first binder incorporated into the surface thereof, said layer (2) being coated with a sheet material (3) embedded in a layer (4) of a second binder. The binders may be hudraulic binders such as cement or plaster.

Claims (15)

LV 10123 Izgudrojuma formula 1. Minerālšķiedras elements, kas īpaši piemērots izolējošā slāņa ar pastiprinātu virsmu ražošanā un, kas atšķiras ar to, ka saistvielu saturošais virsmas slānis ir pārklāts ar kārtainu materiālu, kurš iestrādāts otrā saistvielas slānī.1. A mineral fiber element particularly suitable for the production of an insulating layer with reinforced surfaces, and characterized in that the surface layer comprising the binder is coated with a layered material embedded in the second binder layer. 2. Minerālšķiedras elements saskaņā ar l.p., kas atšķiras arto, ka kārtainais materiāls, tiek atlasīts no neaustu, austu un tīklu materiālu grupas.2. A mineral fiber element according to claim 1, wherein the laminated material is selected from the group of nonwoven, woven and mesh materials. 3. Minerālšķiedras elements saskaņā ar 2. p., kas atšķiras ar to, ka kārtainais materiāls ir šķiedrains un neausts materiāls, kura blīvums ir no 10 līdz 100 g/m2.Mineral fiber element according to claim 2, characterized in that the laminated material is a fibrous and non-woven material having a density of 10 to 100 g / m2. 4. Minerālšķiedras elements saskaņā ar formulas 2. un 3. p., kas atšķiras ar t o, ka kārtainais materiāls sastāv no organiskām šķiedrām vai organisko un neorganisko šķiedru kombinācijām.Mineral fiber element according to claims 2 and 3, characterized in that the layered material consists of organic fibers or combinations of organic and inorganic fibers. 5. Minerālšķiedras elements saskaņā ar formulas jebkuru punktu no 2. līdz 4., kas atšķiras ar to, ka kārtainais materiāls nav pilnībā austs, vai ir daļēji neausts un tā stiepes stiprība pārbaudes mašīnā ir no 20 līdz 600 N/5 cm spēka pielikšanas virzienā un tāda pati arī šķērsvirzienā.5. Mineral fiber element according to any one of claims 2 to 4, characterized in that the layered material is not fully woven or partially woven and its tensile strength in the test machine is from 20 to 600 N / 5 cm in the direction of force application. and the same in the transverse direction. 6. Minerālšķiedras elements saskaņā ar formulas visiem iepriekšējiem punktiem, kas atšķiras ar to, ka pirmā un otrā saistviela ir vienādas.Mineral fiber element according to any of the preceding claims, characterized in that the first and second binders are the same. 7. Minerālšķiedras elements saskaņā ar formulas visiem iepriekšējiem punktiem, kas atšķiras ar to, ka abas saistvielas ir hidrauliskas.Mineral fiber element according to any of the preceding claims, characterized in that the two binders are hydraulic. 8. Minerālšķiedras elements saskaņā ar formulas 7.punktu, kas atšķiras ar t o, ka viena vai abas saistvielas satur vienu vai vairākus piemaisījumus, kurus atlasa no sacietēšanas paātrinātāju, pigmentu, ūdeni atgrūdošu aģentu un adhēziju veicinātāju grupas.Mineral fiber element according to claim 7, characterized in that one or both binders contain one or more impurities selected from the group consisting of hardening accelerators, pigments, water repellents and adhesion promoters. 9. Minerālšķiedras elements saskaņā ar jebkuru formulas iepriekšējo punktu, kas atšķiras ar to, ka pirmā vai otrā saistviela ir cements, ģipsis, kaļķi vai kāda no pucolāniskām vielām, cements vai ģipsis, bet it īpaši cements.Mineral fiber element according to any one of the preceding claims, characterized in that the first or second binder is cement, gypsum, lime or some pucolanic material, cement or gypsum, but especially cement. 10. Minerālšķiedras elements saskaņā ar jebkuru formulas iepriekšējo punktu, kas atšķiras ar to, ka tā blīvums ir 50-180 kg/m3. -2-Mineral fiber element according to any one of the preceding claims, characterized in that it has a density of 50-180 kg / m3. -2- 11 .Mineralšķiedras elements saskaņa ar formulas 10.punktu, kas atšķiras ar to, ka tas izgatavots no raupjas vilnas šķiedrām.11.Mineral fiber element according to claim 10, characterized in that it is made of rough wool fibers. 12. Minerālšķiedras elements saskaņā ar jebkuru formulas iepriekšējo punktu, kas atšķiras ar t o, ka tas sastāv no blakusesošām plānām sloksnēm, kurām dominējošā šķiedru orientācija ir galvenokārt perpendikulāra elementa galvenajām virsmām.Mineral fiber element according to any one of the preceding claims, characterized in that it consists of adjacent thin strips, the dominant fiber orientation of which is predominantly perpendicular to the main surfaces of the element. 13. Minerālšķiedras elementa ražošanas process saskaņā ar formulas 1.punktu, kas atšķiras ar t o, ka sausas, īpaši precīzas un aktivizējamas pirmās saistvielas daļiņas tiek iesūktas minerālšķiedras elementa virsmā, tad aktivizējamā saistviela tiek aktivizēta, saistvielu saturošā virsmas kārta tiek pārklāta ar kārtainu materiālu, kurš savkārt tiek pārklāts ar aktivizētu otrās saistvielas kārtu, pēc tam saistvielām ļaujot sacietēt.13. The process for producing a mineral fiber element according to claim 1, characterized in that the dry, particularly precise and activated first binder particles are sucked into the surface of the mineral fiber element, the activated binder is activated, the coating layer containing the binder is coated with a layered material. which is itself coated with an activated second binder layer, then allowing the binders to solidify. 14. Minerālšķiedras elementa ražošanas process saskaņā ar formulas 13.punktu, kas atšķiras ar to, ka pirms kārtainā materiāla pievienošanas, saistvielu saturošā virsmas slānī tiek pielietota aktivizētās saistvielas kārta.14. A process for producing a mineral fiber element according to claim 13, characterized in that an activated binder layer is applied to the surface layer of the binder prior to the addition of the layered material. 15. Minerālšķiedras elementa ražošanas process saskaņā ar formulas 13. vai 14. punktu, kas atšķiras ar to, ka tiek pielietotas hidrauliskās saistvielas.Process for the production of a mineral fiber element according to claim 13 or 14, characterized in that hydraulic binders are used.
LV920097A 1991-08-16 1992-08-16 A mineral fibre element and a process for the production of such element LV10123B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK146891A DK146891D0 (en) 1991-08-16 1991-08-16 MINERAL FIBER ELEMENT AND PROCEDURE FOR MANUFACTURE OF SUCH ITEM

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LV10123A LV10123A (en) 1994-05-10
LV10123B true LV10123B (en) 1995-02-20

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LV (1) LV10123B (en)
SI (1) SI9200174A (en)
WO (1) WO1993004242A1 (en)

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* Cited by examiner, † Cited by third party
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US20220168994A1 (en) * 2019-04-05 2022-06-02 Rockwool International A/S Insulation element for thermal and/or acoustic insulation of a flat or flat inclined roof and method for producing an insulation element
CN115461516A (en) * 2020-04-03 2022-12-09 洛科威有限公司 Roof system and insulating element for flat roofs or flat pitched roofs
US11690332B2 (en) 2020-04-03 2023-07-04 Rockwool A/S Method of growing plants

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO125857B (en) * 1968-01-11 1972-11-13 Incentive Ab
DK131952C (en) * 1971-07-19 1976-02-23 Bojsen Moller Paper & Trading INSULATING NON-LOADING PARTITION OR PARTITION PART AND PROCEDURE FOR MANUFACTURE OF SUCH WALLS OR WALL PARTS
NL7612071A (en) * 1976-10-29 1978-05-03 Nederlandse Steenwolfabriek Nv MINERAL WOOL ROOF COVERING PLATE.
CA1141640A (en) * 1979-06-08 1983-02-22 Thomas A. Pilgrim Building components
DE3315901C2 (en) * 1983-05-02 1995-04-27 Deutsche Heraklith Multi-layer lightweight board
GB2177048B (en) * 1985-06-01 1990-01-24 Saint Gobain Isover Mineral fibre product for use as an insulating panel or insulating strip
DK288190A (en) * 1990-03-08 1991-09-09 Rockwool Int PROCEDURE FOR MANUFACTURING A MINERAL FIBER ELEMENT WITH A SURFACE ZONE INCLUDING A DEFINED HYDRAULIC BINDING AGENT

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SI9200174A (en) 1993-03-31
WO1993004242A1 (en) 1993-03-04
AU2472792A (en) 1993-03-16
LV10123A (en) 1994-05-10
DK146891D0 (en) 1991-08-16

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