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GB2069477A - Dry Mortar Mix for Laying Floor Tiles, Wall Tiles, Squares and Other Coverings - Google Patents

Dry Mortar Mix for Laying Floor Tiles, Wall Tiles, Squares and Other Coverings Download PDF

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Publication number
GB2069477A
GB2069477A GB8041495A GB8041495A GB2069477A GB 2069477 A GB2069477 A GB 2069477A GB 8041495 A GB8041495 A GB 8041495A GB 8041495 A GB8041495 A GB 8041495A GB 2069477 A GB2069477 A GB 2069477A
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GB
United Kingdom
Prior art keywords
weight
parts
dry mortar
mortar mix
cement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB8041495A
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GB2069477B (en
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SCHOEN WILHELM KG
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SCHOEN WILHELM KG
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Publication of GB2069477A publication Critical patent/GB2069477A/en
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Publication of GB2069477B publication Critical patent/GB2069477B/en
Expired legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B16/00Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B16/04Macromolecular compounds

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

A dry mortar mix comprises a mixture of one or more hydraulic binders and quartz sand in a weight ratio of from 1:2 to 1:4 and, based in each case on 100 parts, by weight, of this mixture: from 10 to 30 parts, by weight, of one or more natural and/or synthetic elastomers in the form of chips, filaments and/or bristles having an average diameter of from 0.5 to 3 mm and an average length of from 0.5 to 3 cm; from 2 to 8 parts, by weight, of a redispersible plastics powder; and, optionally, from 0.05 to 0.2 parts, by weight, of an alkali metal salt of a sulpho group-modified melamine/formaldehyde condensation product; from 0.05 to 0.3 parts, by weight, of an anti-foaming agent; and/or from 0.05 to 0.4 parts, by weight, of an anionic and/or non-ionic surfactant.

Description

SPECIFICATION Dry Mortar Mix for Laying Floor Tiles, Wall Tiles, Squares and Other Coverings This invention relates to a dry mortar mix for laying floor tiles, wall tiles, squares and other cove rings.
Mortar mixes for tiles and squares are defined in DIN 18352 "Fliesen und Plattenarbeiten" under Section 3.4.2.3. Before walls are covered with tiles, squares or mosaic tiles, which have to be set in a normal mortar coating, they have to be sprayed with cement mortar.
In addition, floor tiles and wall tiles have been applied by bonding. Thus, using the floating method, the buttering method or a combination of the floating and buttering methods, an adhesive mortar, such a cement-bound thin-layer adhesive mortar, an adhesive or synthetic resin, a dispersion adhesive or a mixed adhesive which is free from water and solvents, is applied to the substrate by means of a serrated spatula, after which the floor tiles or wall tiles, for example, are pressed into the moist mortar or adhesive coating.
While, in the case of mortar mixes, thicknesses of at least 10 mm and, on average, 15 mm are prescribed, the thin-layer adhesives used for bonding tiles are applied in layer thicknesses of only a few millimetres. However, thin-layer adhesives may only be applied to reasonably flat surfaces. Unless the surfaces are reasonably flat, certain measures have to be taken, such as applying a plaster or screed, as prescribed in DIN 18352 under Section 3.3.3.
On account of the poor elasticity modulus, the prescribed minimum thickness and the relatively poor adhesion values of floor tiles and wall tiles, for example, laid on a coating of mortar, the scope of application of mortar mixes is limited.
Hydraulically setting thin-layer adhesive mortars and thin-layer adhesive may only smooth out irregularities in the substrate to a minimal extent. Added to this is the fact that dispersion adhesives are not sufficiently waterand frost-resistant and, for this reason, are only of limited use. Floor tiles and wall tiles, for example, applied by means of a mortar or thin-layer adhesive cannot be replaced or renewed without damaging the substrate.
Accordingly, an object of the present invention is to obviate these disadvantages and deficiences and to provide for substrates and elastic adhesive mortar which combines the resistance to water and frost of a mortar and hydraulically setting thin-layer adhesive with the elastic properties of a synthetic thin-layer adhesive, for example a dispersion adhesive.
According to the present invention, this object is achieved by a dry mortar mix for laying floor tiles, wall tiles, squares and other coverings which is characterised by a content of a mixture of hydraulic binders and quartz sand in a ratio, by weight, of from 1:2 to 1:4 and, based in each case on 100 parts, by weight, of this mixture, contains: from 10 to 30 parts, by weight, of natural and/or synthetic elastomers in the form of chips, filaments and/or bristles having an average diameter of from 0.5 to 3 mm and average length of from 0.5 to 3 cm; from 2 to 8 parts, by weight, of a redispersible plastics; and, optionally, from 0.05 to 0.2 parts, by weight, of an alkali metal salt of a melamine/formaldehyde condensation product modified by sulpho groups; from 0.05 to 0.3 parts, by weight, of an anti-foaming agent; and/or from 0.05 to 0.4 parts, by weight, of an anionic and/or non-ionic surfactant.
Hydraulic binders include cements, such as Portland cement, trass Portland cement, trass cement, iron Portland cement, white and alumina cement.
The quartz sand used in accordance with the present invention should preferably have a grain size of from 0.12 to 2 mm. The ratio in which the hydraulic binder and the quartz sand are mixed amounts to from 1:2 to 1:4.
The elastomers present in the form of chips, filaments and/or bristles having an average diameter of from 0.5 to 3 mm and average length (staple length) of from 0.5 to 3 cm may be of natural and/or synthetic origin. Suitable elastomers are primarily natural rubber, synthetic rubber, acrylonitrile-butadiene rubbers, acrylonitrile-butadiene-styrene rubbers, polymers and copolymers of olefins, such as ethylene, propylene, butylene, isobutylene, butadiene, isoprene and mixtures thereof, optionally with acrylates or methacrylates, also polyamides and polyesters, such as polyacrylonitrile-polyester copolymers. The function of these substances is to form elastic bridges in the event of flexural tensile stressing.
For plasticisation and elasticisation, the dry mortar mixes according to the present invention contain redispersible plastics powders, for example, preferably a vinyl acetate/ethylene copolymer characterised by high resistance to hydrolysis and permanent resistance in alkaline cement mixes. Other alkali-resistant redispersible plastics may also be used.
The elastomers are used in a quantity of from 10 to 30 parts, by weight, preferably from 1 5 to 20 parts, by weight, while the redispersible plastics powders are used in a quantity of from 2 to 8 parts, by weight, preferably from 4 to 6 parts, by weight, based in each case on 100 parts, by weight, of the cement/quartz sand mixture.
The dry mortar mixes according to the present invention may also contain deflocculants, such as alkalie metal salts, particularly the sodium salts of melamine/formaldehyde condensation products modified by sulpho groups in solid form, also known anti-foaming agents and/or (for increasing the wettability of the hydraulic binders) anionic and/or non-ionic surfactants, such as alkyl aryl sulphonates or polyglycol ethers derived from fatty alcohols and/or aromatic alcohols. The deflocculants may be used in quantities of from 0.05 to 0.2 parts, by weight, the anti-foaming agents in quantities of from 0.05 to 0.3 parts, by weight, and the surfactants in quantities of from 0.05 to 0.4 parts, by weight.
An anti-foaming agent is added when it is desired to obtain a compact strength-increasing adhesive mortar.
The dry mortar mixes according to the present invention are stirred on site with a suitable quantity of water, preferably from 100 to 250 parts, by weight of water per 1000 parts, by weight, of dry mortar mix, to form a plastic mortar and are spread over the substrate in a layer thickness of about 6 mm by means of a spatula or trowel. The floor tiles, wall tiles or other coverings are then pressed into the moist mortar coating.
The substrates in question are floorings of wood, parquet, chipboard, sheets of asbestos cement, linoleum or polyvinyl chloride coverings, steel, covered floors, screeds, preferably corresponding to DIN 18353 and DIN 18354, concrete substrates, dry floor constructions and other cement-based substrates and quick-setting coatings, even with build-in floor heating systems of the conventional type. Flexible substrates, especially of wood, are particularly important.
By virtue of the mortar mix according to the present invention, the set mortar mix according to the present invention shows permanently elastic behaviour, particularly on flexible substrates, and has a favourable elasticity modulus. The mortar mix may be applied in significantly thinner layers for permanently laying ceramic floor coverings than was possible by the procedure using a mortar defined in DIN 18352. In addition, the coverings are water-resistant and frost-resistant.
If the covering is to be laid as a removable covering, a sheets of foam approximately 4 mm thick or a bitumen roofing felt, which may even by stitched or tacked, is previously applied to the substrate. In either case, the floor covering may be taken up again without damaging the substrate.
It has proved to be advantageous, for the purpose of completing the tiling or covering work, to fill the gaps formed with the mortar according to the present invention without its elastomer content, preferably by the so-called "slurry process".
The present invention is illustrated by the following Examples.
Example 1 A dry mortar mix is prepared by mixing the following ingredients: 260 parts, by weight of Portland cement (PC 35); 520 parts, by weight, of quartz sand having a grain size of from 0.12 to 2 mm; 140 parts, by weight, of rubber scraps; 50 parts, by weight, of an alkali-resistant, redispersible vinyl acetate/ethylene copolymer: 10 parts, by weight, of the calcium salt of diisopropyl napthalene sulphonic acid as anti foaming agent; 10 parts, by weight, of the sodium salt of melamine/formaldehyde condensation product modified by sulpho groups as deflocculant; and 10 parts, by weight, of conventional commercial-grade alkyl aryl sulphonate.
The thus-prepared mixture is stirred with 1 50 parts, by weight, of water to form a plastic mortar.
Example 2 A dry mortar mix is prepared by mixing the following ingredients: 1000 parts, by weight, of a mix of a mixture of trass and Portland cement 45 in a ratio of 30:70 and quartz sand having a grain size of from 0.12 to 2 mm in a ratio of hydraulic binder to quartz sand of 1 :2; 180 parts, by weight, of a mixture of butadiene rubber in the form of filaments having an average length of 2.5 cm and a diameter of about 0.6 mm and polyester bristles having an average length of 2 cm and a diameter of about 2 mm; 64 parts, by weight, of the redispersible plastic powder mentioned in Example 1; 13 parts, by weight, of the calcium salt of diisobutyl naphthalene sulphonic acid as anti-foaming agent; 13 parts, by weight of the deflocculant according to Example 1; and 13 parts, by weight, of a conventional commercial alkyl aryl sulphonate.
The mixture is stirred with 200 parts, by weight, of water to form a plastic mortar.
The mortars obtainable in accordance with Examples 1 and 2 satisfy the requirements laid down in DIN 18156, Part 2: Compressive strength: 25 N/mm2 Flexural tensile strength: 8 N/mm2 Bond strength: a) dry 1.5 N/mm2 b) wet 0.8 N/mm2 Shearing: a) dry 9 N/mm b) wet 6 N/mm

Claims (5)

Claims
1. A dry mortar mix which comprises a mixture of one or more hydraulic binders and quartz sand in a weight ratio of from 1:2 to 1:4 and, based in each case on 100 parts, by weight, of this mixture; from 10 to 30 parts, by weight, of one or more natural and/or synthetic elastomers in the form of chips, filaments and/or bristles having an average diameter of from 0.5 to 3 mm and an average length of from 0.5 to 3 cm; from 2 to 8 parts, by weight, of a redispersible plastics powder; and, optionally, from 0.05 to 0.2 parts, by weight, of an alkali metal salt of sulpho group-- modified melamine/formaldehyde condensation product; from 0.05 to 0.3 parts, by weight, of an anti-foaming agent; and/or from 0.05 to 0.4 parts, by weight, of an anionic and/or non-ionic surfactant.
2. A dry mortar mix as claimed in claim 1 comprising as the hydraulic binder Portland cement, trass Portland cement, trass cement, iron Portland cement, white cement and/or alumina cement.
3. A dry mortar mix as claimed in claim 1 or claim 2 comprising as the redispersible plastics powder an alkali-resistant vinyl acetate/ethylene copolymer.
4. A dry mortar mix as claimed in any of claims 1 to 3 comprising as the anti-foaming agent a calcium salt of diisopropyl or diisobutyl naphthalene sulphonic acid.
5. A dry mortar mix as claimed in claim 1 substantially as herein described with particular reference to the Examples.
GB8041495A 1980-02-15 1980-12-30 Dry mortar mix for laying floor tiles wall tiles squares and other coverings Expired GB2069477B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3005748A DE3005748C2 (en) 1980-02-15 1980-02-15 Dry mortar mixture for laying tiles, tiles, slabs and other coverings

Publications (2)

Publication Number Publication Date
GB2069477A true GB2069477A (en) 1981-08-26
GB2069477B GB2069477B (en) 1983-08-24

Family

ID=6094735

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8041495A Expired GB2069477B (en) 1980-02-15 1980-12-30 Dry mortar mix for laying floor tiles wall tiles squares and other coverings

Country Status (9)

Country Link
BE (1) BE886936A (en)
CH (1) CH645870A5 (en)
DE (1) DE3005748C2 (en)
DK (1) DK156641C (en)
FR (1) FR2476066A1 (en)
GB (1) GB2069477B (en)
IT (1) IT1143372B (en)
LU (1) LU83030A1 (en)
NL (1) NL8006850A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0162354A3 (en) * 1984-05-15 1987-01-14 Pci Polychemie Gmbh Two or more layered building elements and process for their production
US4686252A (en) * 1985-11-22 1987-08-11 Sika Ag, Vorm. Kaspar Winkler & Co. Process for preparing a building and/or construction material, a polymer modified aqueous dispersion, and use thereof for the preparation of a building and/or construction material
US4722954A (en) * 1985-02-14 1988-02-02 Gerald Hallworth Formation of solid polymeric material comprising a latex and a filler mixture of silica and xanthan gum
US4978402A (en) * 1987-11-06 1990-12-18 The Dow Chemical Company Formation of flexible laminates by bonding a backing to a pre-coated substrate
US5022948A (en) * 1988-06-16 1991-06-11 The Dow Chemical Company Method of bonding layers using discrete areas of adhesive
FR2680780A1 (en) * 1991-08-28 1993-03-05 Hutchinson Adjuvant for a binder-based material such as concrete, coated mortar or the like, use of such an adjuvant and material incorporating it
WO1993014042A1 (en) * 1992-01-17 1993-07-22 Pieri (S.A.) Material containing powdered rubber for protecting concrete from the effects of freezing and thawing
FR2695119A1 (en) * 1992-08-25 1994-03-04 Aschero Leon Compsns. for the prodn. of lightweight insulating concretes and mortars - contg. comminuted plastics waste and a hydraulic binder e.g. cement, plaster or lime, used for breeze blocks, slabs, etc.
EP0722917A1 (en) * 1995-01-18 1996-07-24 PCI Augsburg GmbH Tiling glue of dispersion powder type
ES2172401A1 (en) * 2000-05-26 2002-09-16 Quimica Plus S L Production of a powder for use in mortar consists of mixing of vulcanized rubber with agglutination and e.g. waterproofing agents, for site use
WO2011015508A1 (en) * 2009-08-06 2011-02-10 Construction Research & Technology Gmbh Dispersion powder tile adhesive

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006019056A1 (en) * 2006-04-25 2007-10-31 Schwenk Putztechnik Gmbh & Co. Kg Use of a mortar mixture as attachment mortar

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1720063B1 (en) * 1968-03-16 1971-08-12 Basf Ag Molding compounds based on rubber-elastic polymers, organic binders, cement and / or slaked lime, and optionally mineral fillers
DE2049114C3 (en) * 1970-10-06 1974-03-21 Wacker-Chemie Gmbh, 8000 Muenchen Manufacture of free-flowing, non-blocking, redispersible plastic powder
BE787416A (en) * 1971-08-16 1973-02-12 Ici Ltd REINFORCED INORGANIC CEMENT PRODUCTS
DE2349910B2 (en) * 1973-10-04 1978-05-18 Hoechst Ag, 6000 Frankfurt Additive for mortar and concrete
IE45045B1 (en) * 1975-10-28 1982-06-16 Ici Ltd Cementitious compositions
GB1498297A (en) * 1976-02-09 1978-01-18 Building Adhesives Ltd Composition for use in the installation of ceramic tiles
IT1075548B (en) * 1976-05-11 1985-04-22 Lechler Chemie Gmbh PROCEDURE AND DEVICE TO PRODUCE ANTI-CORROSION LAYERS
AT355486B (en) * 1977-04-20 1980-03-10 Eternit Werke Hatschek L MIXTURE, ESPECIALLY CONSTRUCTION MATERIAL, FOR THE PRODUCTION OF MOLDED BODIES

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0162354A3 (en) * 1984-05-15 1987-01-14 Pci Polychemie Gmbh Two or more layered building elements and process for their production
US4722954A (en) * 1985-02-14 1988-02-02 Gerald Hallworth Formation of solid polymeric material comprising a latex and a filler mixture of silica and xanthan gum
US4781781A (en) * 1985-02-14 1988-11-01 Gerald Hallworth Formation of solid polymeric material
US4686252A (en) * 1985-11-22 1987-08-11 Sika Ag, Vorm. Kaspar Winkler & Co. Process for preparing a building and/or construction material, a polymer modified aqueous dispersion, and use thereof for the preparation of a building and/or construction material
US4978402A (en) * 1987-11-06 1990-12-18 The Dow Chemical Company Formation of flexible laminates by bonding a backing to a pre-coated substrate
US5022948A (en) * 1988-06-16 1991-06-11 The Dow Chemical Company Method of bonding layers using discrete areas of adhesive
FR2680780A1 (en) * 1991-08-28 1993-03-05 Hutchinson Adjuvant for a binder-based material such as concrete, coated mortar or the like, use of such an adjuvant and material incorporating it
WO1993014042A1 (en) * 1992-01-17 1993-07-22 Pieri (S.A.) Material containing powdered rubber for protecting concrete from the effects of freezing and thawing
FR2686334A1 (en) * 1992-01-17 1993-07-23 Pieri PROTECTIVE PRODUCT FOR CONCRETE AGAINST THE EFFECTS OF FREEZING AND FREEZING COMPRISING RUBBER POWDER.
FR2695119A1 (en) * 1992-08-25 1994-03-04 Aschero Leon Compsns. for the prodn. of lightweight insulating concretes and mortars - contg. comminuted plastics waste and a hydraulic binder e.g. cement, plaster or lime, used for breeze blocks, slabs, etc.
EP0722917A1 (en) * 1995-01-18 1996-07-24 PCI Augsburg GmbH Tiling glue of dispersion powder type
ES2172401A1 (en) * 2000-05-26 2002-09-16 Quimica Plus S L Production of a powder for use in mortar consists of mixing of vulcanized rubber with agglutination and e.g. waterproofing agents, for site use
WO2011015508A1 (en) * 2009-08-06 2011-02-10 Construction Research & Technology Gmbh Dispersion powder tile adhesive

Also Published As

Publication number Publication date
IT1143372B (en) 1986-10-22
CH645870A5 (en) 1984-10-31
BE886936A (en) 1981-04-16
DK554680A (en) 1981-08-16
DE3005748A1 (en) 1981-08-20
FR2476066B1 (en) 1983-07-29
FR2476066A1 (en) 1981-08-21
DE3005748C2 (en) 1984-05-03
DK156641C (en) 1990-03-12
IT8167178A0 (en) 1981-02-09
LU83030A1 (en) 1981-03-27
GB2069477B (en) 1983-08-24
NL8006850A (en) 1981-09-16
DK156641B (en) 1989-09-18

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19921230