WO1988001609A1 - Emploi de phosphonates d'alkyle substitues dans des melanges de beton et de mortier, bouillies de ciment ainsi que peintures au latex - Google Patents

Emploi de phosphonates d'alkyle substitues dans des melanges de beton et de mortier, bouillies de ciment ainsi que peintures au latex Download PDF

Info

Publication number
WO1988001609A1
WO1988001609A1 PCT/EP1987/000449 EP8700449W WO8801609A1 WO 1988001609 A1 WO1988001609 A1 WO 1988001609A1 EP 8700449 W EP8700449 W EP 8700449W WO 8801609 A1 WO8801609 A1 WO 8801609A1
Authority
WO
WIPO (PCT)
Prior art keywords
concrete
substituted alkyl
cement
alkyl phosphonates
weight
Prior art date
Application number
PCT/EP1987/000449
Other languages
German (de)
English (en)
Inventor
Eberhard Christ
Uwe Schubert
Original Assignee
Eberhard Christ
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 Eberhard Christ filed Critical Eberhard Christ
Publication of WO1988001609A1 publication Critical patent/WO1988001609A1/fr

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
    • 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
    • C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic 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
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/003—Phosphorus-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02—Phosphorus compounds
    • C07F9/28—Phosphorus compounds with one or more P—C bonds
    • C07F9/38—Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
    • C07F9/3804—Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)] not used, see subgroups
    • C07F9/3808—Acyclic saturated acids which can have further substituents on alkyl
    • 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
    • C04B2111/22—Carbonation resistance

Definitions

  • the invention relates to the use of substituted alkyl phosphonates in concrete and mortar mixtures, slurries (cement paste) and emulsion paints to reduce the diffusion of carbon dioxide in concrete parts and to increase the compressive strength of concrete parts.
  • the hydration of the di- and tricalcium silicates, which deliver the lower-calc, fibrous calcium silicate hydrate, is primarily responsible for the strength development of a Portland cement.
  • calcium hydroxide is released, which initially only plays a subordinate role for the strength of the concrete.
  • the calcium hydroxide absorbs carbon dioxide from the outside to form calcium carbonate. This natural hardening process, which progresses from the outside inwards, takes decades or centuries with thick masonry or strong concrete parts, which results in the extraordinary strength of old buildings.
  • the reinforcement steels laid in the concrete have lost all or part of their corrosion protection in the form of the alkaline environment initially present.
  • the corrosion on the surface of the reinforcement steels which initially appears as discoloration of the Exposing exposed concrete and the associated volume expansion of the corrosion products loosen the concrete ceiling, as a result of which all or part of the rusted reinforcing steel is exposed and the original surface profile of the component is disturbed.
  • DE-PS 23 48 081 describes the use of sparingly soluble barium silicate hydrates as an additive to concrete and mortar mixtures which contain gypsum, gypsum stone or anhydride in order to bind sulfate ions and to slow the carbonation.
  • the object of the present invention is to provide additives for concrete and mortar mixtures, slurries and for emulsion paints, which not only reduce the diffusion of carbon dioxide in concrete parts and thus have a retarding influence on the carbonation in concrete parts, so that they are able to protect the underlying reinforcing steel from corrosion, but also, if possible, the mechanical properties improve the above-mentioned mixtures, in particular increase the compressive strength of the finished concrete parts.
  • the solution to this problem is the use of at least one substituted alkylphosphonate or a mixture of substituted alkylphosphonates in concrete and mortar mixtures and slurries in quantities of 0.001 to 1.0% by weight, based on the weight fraction of cement, and in emulsion paints in quantities from 0.1 to 0.32% by weight, based on the solids content of the dispersion.
  • substituted alkylphosphonates and their free acids are known, for example, as sequestering agents, such as l-hydroxyethane-l, l-diphosphonic acid (R ⁇ mpp, Chemische lexicon, 8th edition, p. 1804), and as surfactants in detergents (see for example EP- A-26529).
  • sequestering agents such as l-hydroxyethane-l, l-diphosphonic acid (R ⁇ mpp, Chemische lexicon, 8th edition, p. 1804)
  • surfactants in detergents see for example EP- A-26529.
  • the substituted alkylphosphonates when used, in addition to the use of their surfactant properties which cause the cement-old mixtures to liquefy, in particular a delay or reduction in the carbon dioxide diffusion in concrete parts is caused (delay in carbonation).
  • the cement-containing mixtures when the cement-containing mixtures are hardened, the compressive strength and bending tensile strength and the acid resistance of the hardened parts are increased if the substituted alkylphosphonates are used in concrete and mortar mixtures and slurries.
  • plasticizers of the prior art normally have to be added in amounts of not less than 2% by weight, based on the proportion of cement.
  • DE-PS 27 55 551 describes the use of 2,2,2-tris (hydroxymethyl) ethylphosphonic acid to retard the setting or hardening of cement.
  • the aqueous solution of the phosphonic acid is added in a concentration of 0.75% to the cement mixture without reference.
  • DE-AS 1 154 028 relates to a process for the liquefaction of inorganic sludges to which salts of acylation products of phosphorous acid are added.
  • WO 85/01043 includes the use of substituted phosphonates for retarding the setting of cement stillages, while EP-Al 0 166 798 describes a delaying additive for cement mixtures.
  • At least one is used in concrete and mortar mixtures and stillage to reduce the diffusion of carbon dioxide in concrete parts from 0.001 to 1.0% by weight, preferably 0.01 to 0.5% by weight, based on cement
  • the same amounts of the substituted alkylphosphonates used according to the invention are used, i. H.
  • a total of 0.001 to 1.0% by weight, preferably 0.01 to 0.5% by weight, based on the cement of at least one substituted alkyl phosphonate or a mixture of substituted alkyl phosphonates in addition to reducing the diffusion an increase in the compressive strength of the concrete parts of the carbon dioxide can also be observed.
  • the sodium salt of diethylene-triamine-pentamethylene-phosphonic acid is preferably used in the context of the present invention.
  • the substituted alkylphosphonic acids or the salts of these acids used according to the invention are able to largely seal the concrete against carbon dioxide which penetrates from the outside, or to bind carbon dioxide, in order to counteract a change in pH value by carbonation .
  • the reinforcement steels lying in the concrete are better protected against corrosion, since the carbonation process is significantly slowed down. An increase in the compressive strength of the concrete parts can also be observed.
  • crete and mortar mixtures in which the abovementioned substituted alkylphosphonates can be used in the amounts mentioned is to be understood in the broadest sense and includes in particular screed mortar, masonry mortar, stuffing mortar and others made of cement, sand, gravel, tress, Expanded clay, foam lava, pumice, foamed polystyrene, cork, polyurethane foam and other, organic or inorganic-chemical additives with the addition of water, hydraulically solidifying mixtures.
  • concrete and mortar mixtures can also contain a wide variety of concrete additives and mortar additives, such as can be found in the book "Additives, Paints, Auxiliaries for Concrete and Mortar” by Albrecht and Mannherz, Bauverlag GmbH, 1968, without claiming to be complete.
  • cement constituents of the cement-containing mixtures in particular the concrete and mortar mixtures, the following should preferably be mentioned: Portland cements, iron Portland cements, blast furnace cements, tress cements and puzzolements, to which known additives such as raw meal and / or fly ash are of course known can be added.
  • test specimens were produced starting from a standard mortar with Portland cement 35F according to DIN 1164 with a water-cement value of 0.5 and tested as follows:
  • the CO_ diffusion resistance numbers illustrate the excellent effect of the additives used according to the invention. Multiplying by the layer thickness gives the diffusion-equivalent air layer thickness, which offers sufficient protection against carbon dioxide at values above 50 m. A layer of concrete only 0.06 m thick (according to the example) is already able to exceed the required diffusion-equivalent air layer thickness of more than 50 m. Pretreatment of the exposed reinforcement steel with corrosion-inhibiting agents, such as red lead, is therefore no longer necessary according to the invention.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

Emploi de phosphonates d'alkyle substitués connus en soi dans des mélanges de béton et de mortier, bouillies de ciment (pâte de ciment) ainsi que dans des peintures aqueuses au latex, et ce dans des quantités, comprises entre 0,001 et 1,0 % en poids, rapporté au ciment, dans les mélanges de béton et de mortier et les boues de ciment, ou entre 0,1 et 0,32 % en poids, rapporté à la teneur en substances solides de la dispersion, dans les peintures au latex, afin de réduire la diffusion du gaz carbonique dans les parties en béton et éventuellement d'accroître leur résistance à la compression.
PCT/EP1987/000449 1986-08-28 1987-08-15 Emploi de phosphonates d'alkyle substitues dans des melanges de beton et de mortier, bouillies de ciment ainsi que peintures au latex WO1988001609A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863629234 DE3629234C1 (de) 1986-08-28 1986-08-28 Verwendung von substituierten Alkylphosphonaten in Beton- und Moertelmischungen,Schlempen sowie Dispersionsfarben
DEP3629234.6 1986-08-28

Publications (1)

Publication Number Publication Date
WO1988001609A1 true WO1988001609A1 (fr) 1988-03-10

Family

ID=6308353

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1987/000449 WO1988001609A1 (fr) 1986-08-28 1987-08-15 Emploi de phosphonates d'alkyle substitues dans des melanges de beton et de mortier, bouillies de ciment ainsi que peintures au latex

Country Status (3)

Country Link
AU (1) AU7851887A (fr)
DE (1) DE3629234C1 (fr)
WO (1) WO1988001609A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7686884B2 (en) 2003-05-05 2010-03-30 Sika Technology Ag Use of phosphorus-oxygen acid esters containing alkoxy groups as corrosion inhibitors for reinforced concrete

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3232998A1 (de) * 1982-09-04 1984-03-08 Henkel KGaA, 4000 Düsseldorf Diphosphonsaeuren

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1154028B (de) * 1960-01-23 1963-09-05 Henkel & Cie Gmbh Verfahren zur Verfluessigung von anorganischen Schlaemmen
US3794506A (en) * 1972-10-02 1974-02-26 Dow Chemical Co Cementitious compositions containing phosphonic acid
US4089893A (en) * 1976-12-13 1978-05-16 Borg-Warner Corporation 2,2,2-Tris(hydroxymethyl)ethylphosponic acid and method for its preparation
US4466836A (en) * 1983-04-28 1984-08-21 The Dow Chemical Company Set retarding compounds for use in cement slurries
US4472200A (en) * 1983-09-02 1984-09-18 The Dow Chemical Company New additives for retarding setting of cement from methylenephosphonated aminohydrocarbylpiperazine-urea adducts

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3232998A1 (de) * 1982-09-04 1984-03-08 Henkel KGaA, 4000 Düsseldorf Diphosphonsaeuren

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CHEMICAL ABSTRACTS, Band 95, Nr. 1, Juli 1981, (Columbus, Ohio, US), G.D. DIBROV et al.: "Effect of a Triethanolamine Salt of Alkyl Phosphates on the Durability of Concrete", siehe seite 280, Zusammenfassung 11567c, & Izv. Sev.-Kauk. Nauchn. Tsentra Vyssh. Shk., Tekh. Nauki 1980, (3), 77-9 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7686884B2 (en) 2003-05-05 2010-03-30 Sika Technology Ag Use of phosphorus-oxygen acid esters containing alkoxy groups as corrosion inhibitors for reinforced concrete

Also Published As

Publication number Publication date
AU7851887A (en) 1988-03-24
DE3629234C1 (de) 1987-10-01

Similar Documents

Publication Publication Date Title
DE102008033447B3 (de) Silikatische Baustoffmischung und deren Verwendungen
DE19846414B4 (de) Phosphatzementbindemittel, Verfahren zu seiner Herstellung und seine Verwendung, insbesondere als Reparaturmörtel
KR101911316B1 (ko) 콘크리트 구조물 보수·보강용 환경친화형 칼라 시멘트 모르타르 조성물 및 이를 이용한 콘크리트 구조물의 보수방법
EP3805181B1 (fr) Composition de matériau de construction à séchage rapide à base d'un liant hybride minéral
EP0211362B1 (fr) Mélange pour la fabrication de mortiers à durcissement rapide pour stucs et réparations
DE3937432C2 (de) Bindemittel und seine Verwendung
DE3217558A1 (de) Zementzusammensetzung und verfahren zur steuerung von volumenaenderungen bei schnell abbindenden fluiddichten zementsystemen
EP1307411A2 (fr) Procede pour produire du beton ou du mortier au moyen d'un agregat vegetal
EP0320982B1 (fr) Utilisation de composition de gypse comme masse de colle ou de jointoiement
EP0213390A1 (fr) Mélange de mortier pour revêtement de sol cimenteux à durcissement rapide
EP0211365A1 (fr) Ciment à durcissement rapide
DE102013007937B4 (de) Verwendung eines mineralischen, hydraulischen Bindemittel in wasserhaltigen Frischmassen, sowie in mineralischen, hydraulischen Trockenmörteln, in mineralischen Frischmörteln und Frischbetonen
EP0540552B1 (fr) Procede de production de liant riche en hydrate de chaux pour betons ou pour mortiers et utilisation du liant
EP1144340B1 (fr) Materiau pour etancheifier des surfaces de construction poreuses
DE3629234C1 (de) Verwendung von substituierten Alkylphosphonaten in Beton- und Moertelmischungen,Schlempen sowie Dispersionsfarben
WO2011110646A1 (fr) Composition ignifuge
AT393381B (de) Bindemittelgemisch zur herstellung von dichtenden schichten
DE102005052791B4 (de) Verwendung von Monofluorphosphat inwässriger Lösung als Haftgrundierungsmittel, Verfahren zur Herstellung von verputzten Wänden oder Decken aus Beton mit verbesserter Haftung zwischen Putz und Betonoberfläche sowie die Verwendung von Putzmörtel enthaltend Monofluorphosphat zur Verbesserung der Haftung von Putzen auf Betonoberflächen
EP0169508A2 (fr) Matériau de construction à base de phospho-hémihydrate, procédé pour sa fabrication et son utilisation
AT373571B (de) Verfahren zum verkuerzen der abbindezeit von zementpaste, moertel oder beton
DE2756499A1 (de) Kriechfestes bindemittel und stoffzusammensetzung zu seiner herstellung
AT392063B (de) Verfahren zur herstellung eines pulverfoermigen zusatzmittels fuer beton bzw. moertel
DD269295A3 (de) Verfahren zur Herstellung hochbeanspruchbarer, dekorativer Estrichfußböden und Platten auf Gipsbasis
DE3317817A1 (de) Korrosionsschutzmittel
AT225101B (de) Verfahren zum Schutz von mineralischen Baustoffen und daraus hergestellten Bauteilen gegen aggressive Einwirkungen

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AU BR DK FI JP KR MC NO US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LU NL SE