DE19957102A1 - Joint mortar used in building industry contains additives of alkali silicate, stearic acid, alkaline earth stearates, 4-hydroxybenzoic acid alkyl esters and/or sodium alkyl-4-hydroxybenzoate - Google Patents

Joint mortar used in building industry contains additives of alkali silicate, stearic acid, alkaline earth stearates, 4-hydroxybenzoic acid alkyl esters and/or sodium alkyl-4-hydroxybenzoate

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Publication number
DE19957102A1
DE19957102A1 DE1999157102 DE19957102A DE19957102A1 DE 19957102 A1 DE19957102 A1 DE 19957102A1 DE 1999157102 DE1999157102 DE 1999157102 DE 19957102 A DE19957102 A DE 19957102A DE 19957102 A1 DE19957102 A1 DE 19957102A1
Authority
DE
Germany
Prior art keywords
grout
hydroxybenzoate
water
mold
alkyl
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.)
Ceased
Application number
DE1999157102
Other languages
German (de)
Inventor
Johann Memmen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MEM Bauchemie GmbH
Original Assignee
Johann Memmen
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Johann Memmen filed Critical Johann Memmen
Priority to DE1999157102 priority Critical patent/DE19957102A1/en
Publication of DE19957102A1 publication Critical patent/DE19957102A1/en
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/04—Carboxylic acids; Salts, anhydrides or esters thereof
    • C04B24/045—Esters, e.g. lactones
    • 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
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/08—Fats; Fatty oils; Ester type waxes; Higher fatty acids, i.e. having at least seven carbon atoms in an unbroken chain bound to a carboxyl group; Oxidised oils or fats
    • C04B24/085—Higher fatty acids
    • 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
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions 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
    • 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
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/60—Agents for protection against chemical, physical or biological attack
    • C04B2103/67—Biocides
    • C04B2103/69—Fungicides
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00663—Uses not provided for elsewhere in C04B2111/00 as filling material for cavities or the like
    • C04B2111/00672—Pointing or jointing materials
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials

Landscapes

  • 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)
  • Oil, Petroleum & Natural Gas (AREA)
  • Sealing Material Composition (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

Joint mortar contains additives of alkali silicate, stearic acid, alkaline earth stearates, 4-hydroxybenzoic acid alkyl esters and/or sodium alkyl-4-hydroxybenzoate.

Description

Unter Fugenmörteln versteht man in der Bautechnik gewöhnlich pulverförmige Trockenmörtel, die nach Anmischen mit Wasser zum Ausfugen von Boden- und Wandbelägen bestimmt sind. Diese Fugenmörtel bestehen aus Füllstoffen, Bindemittel, redispergierbaren Kunstharzpulvern, eventuell Farbpigmenten und diversen Additiven, wie Verlaufshilfsmitteln oder Hydratations­ beschleunigern.In construction engineering, grout is usually understood to be powdered dry mortar, which, after mixing with water, are intended for grouting floor and wall coverings. These grout consist of fillers, binders, redispersible synthetic resin powders, possibly color pigments and various additives, such as leveling agents or hydrations accelerate.

Als feinteilige Füllstoffe werden in Massenanteilen bis zu 50% und mehr Sand, Kreide, Gesteins­ mehl und ähnliche mineralische Zuschläge verwendet. Die Bindemittel bestehen überwiegend aus Zement, der hydraulisch mit Wasser abbindet. Normale Portlandzemente werden für graue Fugenmörtel verwendet, für Fugenweiß sind weiße Zementsorten erforderlich.Sand, chalk, and rock are used as fine-particle fillers in mass proportions of up to 50% and more flour and similar mineral supplements are used. The binders mainly consist of Cement that sets hydraulically with water. Normal Portland cements are used for gray Grout used, white cement types are required for grout.

Zur Verbesserung der Elastizität des Fugenmaterials werden redispergierbare Kunststoffharze zugesetzt. Erwünschte Einfärbungen lassen sich mit Farbpigmenten, wie Titandioxid (weiß), Eisenoxid (braun), Eisenoxidhydroxid (gelb) usw. einstellen.Redispersible plastic resins are used to improve the elasticity of the joint material added. Desired colorations can be achieved with color pigments such as titanium dioxide (white), Adjust iron oxide (brown), iron oxide hydroxide (yellow) etc.

Zur eigentlichen Verfugungsarbeit werden die trockenen Fugenmörtel mit Wasser angerührt, sorgfältig durchmischt und dann die Fliesenbeläge, z. B. mit einem Gummiwischer, verfugt.For the actual grouting work, the dry grout is mixed with water, mixed thoroughly and then the tiles, e.g. B. with a rubber wiper.

Bessere Fugenmörtel lassen sich im Außen- und Innenbereich einsetzen. Gute Qualitäten sollen wetterfest und im flüssigen Zustand plastisch verformbar sein, die Mörtel sohlen die Fugen leicht und voll ausfüllen sowie rissfrei aushärten.Better grout can be used outdoors and indoors. Good qualities should weatherproof and plastically deformable in the liquid state, the mortars light the joints easily and fill in completely and harden without cracks.

Bei der zunehmenden ganzflächigen Verlegung von Fliesen in Nassräumen, wie Duschen, Bädern oder Küchen, können die Fugenmaterialien, bedingt durch den hohen Feuchtigkeitsnachschub, nur noch selten vollständig austrocknen. Diese Dauerdurchfeuchtung, im Wechsel zu kurz­ zeitigem Austrocknen, führt zu typischen Schadensbildern wie Rissbildung in den Fugen, Schimmelbildung und dem Entstehen von Stockflecken.With the increasing full-surface laying of tiles in wet rooms, such as showers, bathrooms or kitchens, the joint materials, due to the high moisture replenishment, only rarely dry out completely. This permanent moisture, alternating too short premature drying, leads to typical damage patterns such as crack formation in the joints, Mold and the formation of mold stains.

Einige Schimmelarten sind pathogen und können Mykosen und Allergien verursachen. Deshalb müssen Vorkehrungen getroffen werden, um das Schimmelwachstum zu verhindern oder zumindest einzudämmen.Some types of mold are pathogenic and can cause mycoses and allergies. Therefore  precautions must be taken to prevent mold growth or at least contain.

Aufgabe der vorliegenden Erfindung ist es daher, die Fugenmörtel gegen Wassereintritt zu schützen und Schimmelpilze abzutöten bzw. das Schimmelwachstum nachhaltig zu hemmen.The object of the present invention is therefore to seal the grout against water ingress protect and kill molds or permanently inhibit mold growth.

Diese Aufgabe wird erfindungsgemäß durch die in den Ansprüchen 1 bis 7 aufgeführten Merk­ male gelöst.This object is achieved according to the invention in the notes listed in claims 1 to 7 times solved.

Versuche zur Lösung der erfindungsgemäß gestellten Aufgabe zeigten, dass sich die Fugmassen wasserdicht bzw. wasserabweisend formulieren lassen, wenn man für die Verstopfung der beim Austrocken entstehenden Poren in den Fugmassen sorgt und gleichzeitig die Fugmassen hydro­ phob ausrüstet. Dies erscheint zwar auf den ersten Blick widersprüchlich, da ja die Fugenmörtel mit Wasser angerührt werden, also hydrophil sein sollen.Attempts to achieve the object according to the invention showed that the jointing compounds Have it formulated waterproof or water-repellent if you are responsible for the constipation of the Dry out pores in the jointing compound and at the same time the jointing compound hydro phob equipment. At first glance, this seems contradictory, since the grout be mixed with water, i.e. should be hydrophilic.

Es wurde aber überraschenderweise gefunden, dass Zusätze von pulverförmigen Alkalisilikaten und/oder verschiedenen festen, feinteiligen Stearaten bzw. pulverförmiger Stearinsäure dieses Ziel erreichen lassen.However, it has surprisingly been found that additions of powdered alkali silicates and / or various solid, finely divided stearates or powdered stearic acid Let goal reach.

Unter Alkalisilikaten sollen verstanden werden Natrium- bzw. Kaliumsilikate mit einem molaren Verhältnis von 1 bis 4 Mol SiO2 auf 1 Mol Na2O bzw. K2O. Solche festen pulverförmigen Produkte sind auch unter der Bezeichnung feste Wassergläser im Handel erhältlich. Beim Auflösen in Wasser erhält man flüssige Wassergläser.Alkali silicates are to be understood as meaning sodium or potassium silicates with a molar ratio of 1 to 4 mol SiO 2 to 1 mol Na 2 O or K 2 O. Such solid powdery products are also commercially available under the name solid water glasses. Liquid water glasses are obtained when dissolved in water.

Diese Alkalisilikate werden den erfindungsgemäßen Fugenmörteln im Rahmen des Herstell­ prozesses als Trockenpulver, d. h. unter Feuchtigkeitsausschluß, zugegeben. Zusätze von 10% und bevorzugt 3% haben sich bewährt. Die Teilchengröße der Alkalisilikate sollte 0,2 mm nicht überschreiten.These alkali silicates are used in the grout according to the invention as part of the manufacturing process process as dry powder, d. H. with exclusion of moisture, added. Additions of 10% and preferably 3% have proven successful. The particle size of the alkali silicates should not be 0.2 mm exceed.

Beim Mischen der Fugenmörtelpulver mit Wasser lösen sich die Alkalisilikate kolloidal, beim Trocknen der Fugenmassen verkitten diese Verbindungen entstandene Poren, so dass der Feuchtigkeitszutritt in die Fugenmasse stark vermindert wird.When mixing the grout powder with water, the alkali silicates dissolve colloidally When the grout dries, these compounds cement the pores formed so that the  Access to moisture in the grout is greatly reduced.

Stearinsäure ist ein weißes kristallines Pulver und als Fettsäure lange bekannt. Die Metallstearate werden gewöhnlich ausgehend von den Oxiden oder Hydroxiden hergestellt. Sowohl die freie Säure als auch die Salze der Stearinsäure besitzen hydrophobierende Wirkung. Der Zusatz dieser Verbindungen, gemäß den Ansprüchen 3 bis 5, vermag zusätzlich zur kapillarverstopfenden Wirkung der Alkalisilikate, eine kapillarverengende und hydrophobierende Wirkung hervor­ zurufen.Stearic acid is a white crystalline powder and has long been known as a fatty acid. The metal stearates are usually made from oxides or hydroxides. Both the free Acid as well as the salts of stearic acid have a hydrophobic effect. The addition of this Compounds, according to claims 3 to 5, are capable of plugging in addition to the capillary Effect of alkali silicates, a capillary narrowing and hydrophobic effect shout.

Die feinpulvrige Stearinäure bzw. die beanspruchten Stearate werden in Massenanteilen von 2 bis 4% den Fugenmörteln zugesetzt und durch sorgfältige Durchmischung homogen verteilt. Wichtig in diesem Zusammenhang ist weiter, dass die Stearinsäure bzw. die Stearate in fein­ teiliger Form (< 0,3 mm) eingesetzt werden.The finely powdered stearic acid or the claimed stearates are in a proportion by mass of 2 to 4% added to the grout and homogeneously distributed through thorough mixing. It is also important in this context that the stearic acid or the stearates are fine partial form (<0.3 mm) can be used.

Damit die erfindungsgemäßen Fugenmörtel nicht nur Wasser abweisen, sondern auch die Entstehung von Schimmelbefall verhindern, werden den Fugentrockenmörteln 4-Hydroxybenzoe­ säurealkylester bzw. die entsprechenden Natriumsalze, also Natrium-Alkyl-4-Hydroxybenzoate, zugesetzt und homogen eingemischt.So that the grout not only repel water, but also the To prevent mold from developing, 4-Hydroxybenzoe is used to dry the grout acid alkyl esters or the corresponding sodium salts, ie sodium alkyl 4-hydroxybenzoates, added and mixed homogeneously.

Unter 4-Hydroxybenzoesäureestern, auch p-Hydroxybenzoesäureester genannt, sollen im Rahmen der vorliegenden Erfindung die Methyl-, Ethyl- und Propyl-(einschließlich i-Propyl-)4- Hydroxybenzoesäureester verstanden werden. Diese Verbindungen lösen sich in verdünnten Laugen unter Bildung der entsprechenden Alkalisalze.Among 4-hydroxybenzoic acid esters, also called p-hydroxybenzoic acid esters, in Within the scope of the present invention the methyl, ethyl and propyl (including i-propyl) 4- Hydroxybenzoic acid esters can be understood. These compounds dissolve in dilute Alkali to form the corresponding alkali salts.

Die 4-Hydroxybenzoesäureester dissoziieren in Wasser nur wenig und sind daher über einen weiten pH-Bereich wirksam. Die Hauptwirkung richtet sich gegen Hefen und Pilze, einge­ schränkt aber auch gegen Bakterien. Die Wirkung der Ester ist direkt proportional zur Kettenlän­ ge der Alkylreste.The 4-hydroxybenzoic acid esters dissociate only slightly in water and are therefore over one wide pH range effective. The main effect is directed against yeasts and fungi also limits against bacteria. The effect of the esters is directly proportional to the chain length ge of the alkyl radicals.

Die angegebenen 4-Hydroxybenzoesäureester werden schon seit einiger Zeit zur Konservierung von Lebensmitteln verwendet. Die akute Toxizität ist daher gering. Eine Anreicherung im Körper findet ebenso nicht statt, weil der Abbau rasch vonstatten geht.The specified 4-hydroxybenzoic acid esters have been used for preservation for some time of food used. The acute toxicity is therefore low. An accumulation in the body  also does not take place because the dismantling takes place quickly.

Angewandt in Fugenmörteln vermögen diese Verbindungen das Wachstum von Schimmelpilzen oder anderen Mikroorganismen über längere Zeiträume zu verhindern, ohne dass unzumutbare toxische Auswirkungen zu befürchten wären.When used in grout, these compounds are capable of growing mold or other microorganisms for long periods of time without being unreasonable toxic effects would be feared.

Als Aufwandkonzentrationen in den schimmelpilzhemmend formulierten Fugenmörteln haben sich Massenanteile von bis zu 5% bewährt.As an expense concentration in the anti-mold grout proven mass fractions of up to 5%.

Mit den erfindungsgemäßen Fugenmörtel lassen sich demnach in einem Arbeitsgang Fliesen verfugen, gleichzeitig abdichten und fungizid ausrüsten, so dass keine Schädigungen bei Wasser­ einwirkung, z. B. zu erkennen an Durchfeuchtung, Schimmelbildung oder Lösen von Fliesen, auftreten.With the grout according to the invention, tiles can therefore be made in one operation grouting, sealing and fungicidal at the same time, so that no damage to water action, e.g. B. recognizable by moisture, mold or loosening of tiles, occur.

Claims (7)

1. Fugenmörtel mit wasserabweisenden und schimmelhemmenden Eigenschaften, dadurch gekennzeichnet, dass er Zusätze von Alkalisilikat und/oder Stearinsäure und/oder Erdal­ kalistearaten und/oder 4-Hydroxybenzoesäurealkylestern und/oder Natrium-Alkyl-4- Hydroxybenzoat enthält.1. Grout with water-repellent and mold-inhibiting properties, characterized in that it contains additions of alkali silicate and / or stearic acid and / or alkaline earth metal stearates and / or alkyl 4-hydroxybenzoates and / or sodium alkyl 4-hydroxybenzoate. 2. Fugenmörtel mit wasserabweisenden und schimmelhemmenden Eigenschaften, dadurch gekennzeichnet, dass er Zusätze von Alkalisilikat in Massenanteilen bis zu 10% enthält.2. Grout with water-repellent and mold-inhibiting properties characterized that it contains additions of alkali silicate in mass proportions up to 10%. 3. Fugenmörtel mit wasserabweisenden und schimmelhemmenden Eigenschaften, dadurch gekennzeichnet, dass er Zusätze von Stearinsäure in Massenanteilen bis zu 2% enthält.3. Grout with water-repellent and mold-inhibiting properties characterized in that it contains additions of stearic acid in mass proportions up to 2%. 4. Fugenmörtel mit wasserabweisenden und schimmelhemmenden Eigenschaften, dadurch gekennzeichnet, dass er Zusätze von Calciumstearat in Massenanteilen bis zu 4% enthält.4. Grout with water-repellent and mold-inhibiting properties characterized that it contains additions of calcium stearate in mass proportions up to 4%. 5. Fugenmörtel mit wasserabweisenden und schimmelhemmenden Eigenschaften, dadurch gekennzeichnet, dass er Zusätze von Aluminiumstearat in Massenanteilen bis zu 4% enthält. 5. Grout with water-repellent and mold-inhibiting properties characterized that he added aluminum stearate in mass fractions up to 4% contains.   6. Fugenmörtel mit wasserabweisenden und schimmelhemmenden Eigenschaften, dadurch gekennzeichnet, dass er Zusätze von 4-Hydroxybenzoesäurealkylester (Alkyl = Methyl-, Ethyl-, Propyl-) in Massenanteilen von bis zu 5% enthält.6. Grout with water-repellent and mold-inhibiting properties characterized in that it contains additions of alkyl 4-hydroxybenzoate (alkyl = methyl, Contains ethyl, propyl) in proportions of up to 5%. 7. Fugenmörtel mit wasserabweisenden und schimmelhemmenden Eigenschaften, dadurch gekennzeichnet, dass er Zusätze von Natrium-Alkyl-4-Hydroxybenzoat (Alkyl = Methyl-, Ethyl-, Propyl-) in Massenanteilen bis zu 5% enthält.7. Grout with water-repellent and mold-inhibiting properties characterized in that he added sodium alkyl 4-hydroxybenzoate (alkyl = methyl, Contains ethyl, propyl) in proportions up to 5%.
DE1999157102 1999-11-26 1999-11-26 Joint mortar used in building industry contains additives of alkali silicate, stearic acid, alkaline earth stearates, 4-hydroxybenzoic acid alkyl esters and/or sodium alkyl-4-hydroxybenzoate Ceased DE19957102A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1999157102 DE19957102A1 (en) 1999-11-26 1999-11-26 Joint mortar used in building industry contains additives of alkali silicate, stearic acid, alkaline earth stearates, 4-hydroxybenzoic acid alkyl esters and/or sodium alkyl-4-hydroxybenzoate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1999157102 DE19957102A1 (en) 1999-11-26 1999-11-26 Joint mortar used in building industry contains additives of alkali silicate, stearic acid, alkaline earth stearates, 4-hydroxybenzoic acid alkyl esters and/or sodium alkyl-4-hydroxybenzoate

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DE19957102A1 true DE19957102A1 (en) 2001-05-31

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008052618A1 (en) * 2006-11-03 2008-05-08 Construction Research & Technology Gmbh Low-dust dry mortar
EP1918263A3 (en) * 2006-10-19 2010-11-24 Hexion Specialty Chemicals Research Belgium S.A. Mortar for jointing floor covering elements

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1918263A3 (en) * 2006-10-19 2010-11-24 Hexion Specialty Chemicals Research Belgium S.A. Mortar for jointing floor covering elements
WO2008052618A1 (en) * 2006-11-03 2008-05-08 Construction Research & Technology Gmbh Low-dust dry mortar

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8127 New person/name/address of the applicant

Owner name: MEM BAUCHEMIE GMBH, 26789 LEER, DE

8181 Inventor (new situation)

Inventor name: MEMMEN, JOHANN, 26789 LEER, DE

8139 Disposal/non-payment of the annual fee
8110 Request for examination paragraph 44
8170 Reinstatement of the former position
8131 Rejection