EP1517870A2 - Verfahren zur beschleunigung des abbindens einer anorganischen hydraulischen bindemittelzusammensetzung die ein zusatsmittel mit hydrophiler funktioneller grouppe enthält, die erhaltene zusammensetzung und deren verwendung - Google Patents

Verfahren zur beschleunigung des abbindens einer anorganischen hydraulischen bindemittelzusammensetzung die ein zusatsmittel mit hydrophiler funktioneller grouppe enthält, die erhaltene zusammensetzung und deren verwendung

Info

Publication number
EP1517870A2
EP1517870A2 EP03761652A EP03761652A EP1517870A2 EP 1517870 A2 EP1517870 A2 EP 1517870A2 EP 03761652 A EP03761652 A EP 03761652A EP 03761652 A EP03761652 A EP 03761652A EP 1517870 A2 EP1517870 A2 EP 1517870A2
Authority
EP
European Patent Office
Prior art keywords
silica
additive
composition
weight
calcium silicates
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
EP03761652A
Other languages
English (en)
French (fr)
Inventor
Jean-Christophe Castaing
Pascal Taquet
André NONAT
Luc Nicoleau
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.)
Hexion Research Belgium SA
Centre National de la Recherche Scientifique CNRS
Original Assignee
Hexion Speciality Chemicals Research Belgium SA
Centre National de la Recherche Scientifique CNRS
Rhodia Chimie SAS
Rhone Poulenc Chimie SA
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 Hexion Speciality Chemicals Research Belgium SA, Centre National de la Recherche Scientifique CNRS, Rhodia Chimie SAS, Rhone Poulenc Chimie SA filed Critical Hexion Speciality Chemicals Research Belgium SA
Publication of EP1517870A2 publication Critical patent/EP1517870A2/de
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
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/04—Silica-rich materials; Silicates
    • C04B14/06—Quartz; Sand
    • C04B14/062—Microsilica, e.g. colloïdal silica
    • 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
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/04—Silica-rich materials; Silicates
    • C04B14/043—Alkaline-earth metal silicates, e.g. wollastonite
    • 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
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028—Aspects relating to the mixing step of the mortar preparation
    • C04B40/0039—Premixtures of ingredients

Definitions

  • the invention relates to a process for accelerating the setting of a composition of hydraulic mineral binders adjuvanted as an additive comprising hydrophilic functions.
  • the invention also relates to a composition of hydraulic mineral binders which can be obtained by this process to accelerate setting.
  • the invention also relates to the use of this composition of hydraulic mineral binders in the building industry, civil engineering or petroleum.
  • Hydraulic binders are generally based on cement. They can be in the form of grout, mortar or concrete. They are used, for example, in the following applications: tile mortars, smoothing and leveling plasters, adhesives and plasters for insulating complexes, repair mortars, waterproofing coatings and cementitious grouts for wells oil.
  • hydrophilic additives and in particular film-forming polymers comprising hydrophilic groups have brought, since 1960, remarkable solutions to these problems, to the point that they have become in common use. and gradually essential. They have also brought other properties after hardening of the compositions of hydraulic mineral binders such as adhesion to various substrates, waterproofness, flexibility, and mechanical properties.
  • hydrophilic additives has drawbacks in the intended application.
  • hydraulic additive binders in hydrophilic additives also have the disadvantage of reducing the open time, that is to say the time during which the user can wait before laying the tile when using said hydraulic binder in an adhesive mortar.
  • the present invention has been developed to solve the problems mentioned above.
  • One of the aims of the present invention is to provide a process for obtaining a hydraulic binder composition added as an additive comprising hydrophilic functions which does not have the drawbacks mentioned above.
  • Another object of the present invention is to provide a method for accelerating the setting of a hydraulic binder composition adjuvanted as an additive comprising hydrophilic functions.
  • Another object of the present invention is to provide a method for increasing the open time of a hydraulic binder composition adjuvanted as an additive comprising hydrophilic functions.
  • the invention also relates to a composition of hydraulic mineral binders which can be obtained by this process to accelerate setting.
  • the invention also relates to the use of this composition of hydraulic mineral binders in the building industry, civil engineering or petroleum.
  • the present invention firstly relates to a process for accelerating the setting of a composition of hydraulic mineral binders added as an additive comprising hydrophilic functions, characterized in that a sufficient quantity of hydrated calcium silicates is added to the composition of hydraulic mineral binders added as an additive comprising hydrophilic functions.
  • X represents an alkali chosen from Li, Na, K, Rb, Cs or their mixture, with o ⁇ a ⁇ 2 o ⁇ b ⁇ 1 1 ⁇ c ⁇ 5 o ⁇ d ⁇ 1
  • CSH can be prepared by synthetic methods known to those skilled in the art. Mention may in particular be made of pages 132 and following of the book entitled “Cernent chemistry", 2 nd edition, HFW Taylor, Thomas Telford Services Ltd, 1997 which are incorporated by reference.
  • They are generally prepared by suspending a mixture of the following compounds: - lime prepared by calcination-decarbonation of calcite at 1000 ° C; - And precipitation silica, the mixture being stirred for a week, then filtered and dried.
  • Drying is an important parameter in the preparation and it is preferred to carry out a rinsing with acetone followed by a rinsing with ether in order to obtain a very good drying of the composition of hydrated calcium silicates.
  • the compound of formula (I) represents silica.
  • silica having a large specific surface area for example precipitation silica or aerosil type silica.
  • silica with a large specific surface is meant a silica having a specific surface of at least 200 m 2 / g and preferably at least 300 m 2 / g.
  • Hydrated calcium silicates or silica with a large specific surface must be added in the composition of hydraulic mineral binders added as an additive comprising anionic hydrophilic functions in a sufficient amount.
  • sufficient quantity is meant within the meaning of the present invention, an amount sufficient to substantially reduce the effect of the delay in setting the compositions. of hydraulic mineral binders added as an additive comprising anionic hydrophilic functions.
  • this quantity in the form of a hydrated calcium silicate or silica ratio with a large specific surface area / additive comprising hydrophilic functions.
  • the quantity of hydrated calcium silicates or silica with a large specific surface introduced into the composition of hydraulic mineral binders added as an additive comprising anionic hydrophilic functions is between 0.5 and 200% by weight of silicates of hydrated calcium or silica with a large specific dry surface relative to the weight of the additive comprising dry anionic hydrophilic functions.
  • this amount is between 10 and 100% by weight of hydrated calcium silicates or of silica with a large dry specific surface relative to the weight of the additive comprising dry anionic hydrophilic functions.
  • this amount is approximately 50% by weight of hydrated calcium silicates or of silica with a large dry specific surface relative to the weight of the additive comprising dry anionic hydrophilic functions.
  • the additive comprising hydrophilic functions can be a film-forming polymer comprising anionic hydrophilic groups.
  • film-forming polymers in the form of an aqueous dispersion (latex) or in the form of redispersible powders are not stable to polymerization or storage if they do not have anionic hydrophilic groups on the surface of the particles.
  • anionic hydrophilic groups is meant in particular the carboxylated, sulphonated, phosphated, phosphonated, sulphated or boronated groups.
  • carboxyl groups are used.
  • a monoacid with vinyl functions such as acrylic acid, methacrylic acid or crotonic acid, or else a diacid with vinyl unsaturation such as fumaric acid, itaconic acid, maleic acid citraconic acid, beta carboxy ethyl acrylate, or acrylamidoglycolic acid.
  • sulfato ethyl methacrylate can be used as the monomer.
  • vinylphosphonic acid can be used as monomer.
  • phosphate groups it is possible to use as monomer the products of the reaction of a hydroxylated monomer with P 2 ⁇ 5 , such as, for example, hydroxyethyl methacrylate phosphate.
  • styrene boronate can be used as the monomer.
  • surfactants the hydrophilic end of which is composed of at least one sulfate, carboxylate, sulfonate, phosphate, phosphonate or boronate group.
  • the water-insoluble film-forming polymers are preferably based on vinyl acetate, styrene / butadiene, styrene / acrylate, acrylate and styrene / butadiene / acrylate homopolymers and copolymers.
  • the film-forming polymers preferably have a glass transition temperature of between about -20 ° C and + 50 ° C, preferably between 0 ° C and 40 ° C.
  • These polymers can be prepared in a manner known per se by emulsion polymerization of ethylenically unsaturated monomers using polymerization initiators and in the presence of conventional emulsifiers and / or dispersants.
  • the polymer content in the emulsion is generally between 30 and 70% by weight, more specifically between 35 and 65% by weight.
  • vinyl esters and more particularly vinyl acetate alkyl acrylates and methacrylates in which the alkyl group contains from 1 to 10 carbon atoms, for example methyl, ethyl, n-butyl, 2-ethylhexyl acrylates and methacrylates; vinyl aromatic monomers, in particular styrene.
  • alkyl acrylates and methacrylates in which the alkyl group contains from 1 to 10 carbon atoms, for example methyl, ethyl, n-butyl, 2-ethylhexyl acrylates and methacrylates
  • vinyl aromatic monomers in particular styrene.
  • ethylene and olefins such as isobutene
  • vinyl aromatic monomers such as methylstyrenes, vinyltoluenes
  • vinyl halides such as vinyl chloride, vinylidene chloride, diolefins especially butadiene.
  • the emulsion polymerization of the monomers is carried out in the presence of an emulsifier and of a polymerization initiator.
  • the monomers used can be introduced as a mixture or separately and simultaneously into the reaction medium, either before the start of the polymerization in one go, or during the polymerization by successive fractions or continuously.
  • an emulsifying agent use is generally made of the conventional anionic agents represented in particular by fatty acid salts, alkylethersulfates, alkylsulfonates, alkylarylethersulfates, alkylarylsulfonates, arylsulfates, arylsulfonates, sulfosuccinates, alkylphosphates alkali metals, salts of abietic acid, hydrogenated or not.
  • nonionic surfactants such as, for example, ethoxylated or alkylphenolethoxylated fatty alcohols. They are used in an amount of 0.01 to 5% by weight relative to the total weight of the monomers.
  • the emulsion polymerization initiator which is water-soluble, is more particularly represented by hydroperoxides such as hydrogen peroxide, cumene hydroperoxide, diisopropylbenzene hydroperoxide, paramenthane hydroperoxide, and by persulfates such as sodium persulfate, potassium persulfate, ammonium persulfate. It is used in amounts of between 0.05 and 2% by weight relative to the total of the monomers.
  • initiators are optionally combined with a reducing agent, such as sodium bisulfite or formaldehyde sulfoxylate, polyethyleneamines, sugars: dextrose, sucrose, metal salts.
  • a reducing agent such as sodium bisulfite or formaldehyde sulfoxylate, polyethyleneamines, sugars: dextrose, sucrose, metal salts.
  • the amounts of reducing agent used vary from 0 to 3% by weight relative to the total weight of the monomers.
  • the reaction temperature depending on the initiator used, is generally between 0 and 100 ° C, and preferably between 30 and 70 ° C.
  • a transfer agent can be used in proportions ranging from 0 to 3% by weight relative to the monomer (s), generally chosen from mercaptans such as N-dodecylmercaptan, tertiododecylmercaptan; cyclohexene; halogenated hydrocarbons such as chloroform, bromoform, carbon tetrachloride. It makes it possible to adjust the proportion of grafted polymer and the length of the grafted molecular chains. It is added to the reaction medium either before the polymerization, or during polymerization.
  • the film-forming polymers comprising hydrophilic groups can also be in the form of powders, said powders being able to be redispersed in water.
  • Redispersible polymer powders have the advantage over aqueous dispersions of being able to be premixed with cement in the form of powdery compositions ready for use.
  • the process for preparing the pulverulent composition of film-forming polymers comprising hydrophilic groups is a conventional process well known to those skilled in the art as described for example in document WO 97/15617.
  • the film-forming polymer of the composition according to the invention has a carboxylated surface and therefore a level of surface acidity.
  • the preferably has a surface acidity level of between 80 and 1200 microequivalentsuivalent of function -COOH per gram of polymer, preferably between 100 and 600 microequivalentsuivalent of function -
  • This surface acidity rate can be measured using the following assay method: An aqueous polymer dispersion or solution with a total volume of 100ml and at
  • This dispersion is stirred and its pH is adjusted to a value between 10.0 and 10.5 with 10% sodium hydroxide.
  • the dosage is then carried out by a titrimeter (model 702 SM titrino of
  • the assay is carried out in the presence of nitrogen bubbling, in order to avoid pollution by carbonate ions.
  • the data (pH as a function of the volume of acid) are then transferred to a computer and digitally adjusted using the least squares method with a model that simulates the determination of a mixture of weak acids. It is assumed that the medium contains a population of several acids whose pKa is between 2 and 12. Numerical adjustment provides the quantity of acids present in the sample for each value of pKa.
  • the amount of weak acids on the surface of the latexes is obtained by summing the number of moles of acids whose pKa is between 4 and 8.5 in the sample. The value obtained divided by the mass of the polymer (in g) gives the acidity rate (in microequivalents / g).
  • the hydraulic mineral binders can be chosen from cements which can be of the Portland, aluminous or blast furnace type. Other compounds often added as additives to cement also have hydraulic properties such as fly ash, calcined shales. Mention may also be made of pozzolans which, by reacting with lime, form calcium silicates and therefore can be influenced by HSCs.
  • the formulation of hydraulic binders for mortars or adjuvanted concretes of film-forming polymer comprising hydrophilic groups is identical to that of common Portland cement mortars or concretes.
  • the proportions of the mixture must simply be adjusted to take into account the proportion of water contained in the latex emulsion comprising hydrophilic functions and the significant plasticizing effect of the latex.
  • the water / cement ratio (W / C) will be between 0.30 and 0.40 (0.35 in the examples of the invention).
  • the hydraulic binders of mortar or concrete adjoined in film-forming polymer comprising anionic hydrophilic groups comprise between 0.1% and 30% by weight of dry polymer relative to the weight of the cement.
  • the hydraulic binders of mortar or concrete adjoined in film-forming polymer comprising anionic hydrophilic groups comprise between 0.1% and 20% by weight of dry polymer relative to the weight of the cement.
  • the hydraulic binder compositions of the invention may also contain the additives usually used in this field such as, for example, superplasticizers or silica fumes.
  • the Applicant has been able to demonstrate the following result: the effect of hydrated calcium silicates on the reduction of the setting delay of the composition of hydraulic binder added as an additive comprising hydrophilic functions is further improved if the calcium silicate hydrated is put in suspension with the additive comprising hydrophilic functions for a sufficiently long time before the addition of the additive comprising hydrophilic functions to the hydraulic mineral binder.
  • the delay in setting of the binder composition hydraulic is reduced by 2 when 50% by weight of hydrated calcium silicates relative to the weight of dry polymer has been added at the same time as the cement, is reduced by 4 when the same quantity of hydrated calcium silicates has been left in suspension with the latex comprising hydrophilic functions for 2 days before the addition of cement, and is reduced by 8 when the same quantity of hydrated calcium silicates has been left in suspension with the latex comprising hydrophilic functions for 5 days before the addition cement.
  • This period of balancing hydrated calcium silicates with the latex comprising hydrophilic functions can be shortened by varying the temperature.
  • the subject of the invention is also an improved process for accelerating the setting of a composition of hydraulic mineral binders added as an additive comprising hydrophilic functions comprising the following steps: 1) a sufficient quantity of hydrated calcium silicates or d 'a silica having a large surface area specific to the additive comprising hydrophilic functions in an aqueous solution with stirring; and 2) adding the composition of hydraulic mineral binders to the mixture obtained in step 1;
  • the duration of the mixing in step 1 and the temperature are parameters which can easily be adapted by those skilled in the art to obtain the result which they seek.
  • a second possible embodiment for accelerating the setting of a composition of hydraulic mineral binders added as an additive comprising hydrophilic functions comprises an additional step after step 1 of drying the suspension obtained in step 1. Drying can be carried out by any method known to those skilled in the art. Preferably, a drying method suitable for obtaining a redispersible polymer powder such as for example spray drying as described in document WO 97/15617 is used. This powder obtained at the end of the drying step of the mixture obtained in step 1 is stable on storage and quickly and easily redispersed in the composition of hydraulic mineral binder.
  • the present invention also relates to the redispersible powder capable of being obtained after drying of the mixture obtained in step 1.
  • This particular embodiment makes it possible to obtain at the end of step 2, a composition of hydraulic mineral binders added as an additive comprising hydrophilic functions which does not have the drawbacks of the prior art.
  • the present invention therefore also relates to a composition of hydraulic mineral binders added as an additive comprising hydrophilic functions capable of being obtained by the process described above.
  • compositions of hydraulic mineral binders added as hydrophilic additives of the invention have good mechanical properties and a significantly reduced setting delay.
  • the hydraulic binder is a mortar
  • this additive is a film-forming polymer comprising anionic hydrophilic groups (latex comprising hydrophilic functions).
  • compositions of hydraulic mineral binders of the invention can be used in all applications for which a hydraulic binder is used. Mention may in particular be made of tile adhesive mortars, smoothing and leveling coatings, adhesives and coatings for insulating complexes, self-leveling floor coatings, repair mortars, waterproofing coatings and grout for oil well cementing.
  • the latex used is a Rhoximat150 latex sold by the company Rhodia.
  • colloidal suspension made up of submicron polymeric beads, resulting from the co-polymerization of styrene and butadiene, polyacrylic chains are then grafted on the surface.
  • the cement used in these examples is CEM I PM-ES 52.5 cement called HTS in the following.
  • the samples are mixed at a water / cement weight ratio fixed at 0.35. 5% by mass of dry extract of latex PSB150 is added in order to approximate the real cases of the adhesive mortar formulations.
  • the increase in cohesion is followed by the measurement over time of the elastic modulus G 'of the sample.
  • the material is subjected to a sinusoidal deformation of 1.5 ⁇ 10 ⁇ 5 5 rad, less than the critical deformation, that is to say that the cementitious paste is not destructured.
  • the frequency is kept constant at 1 radian / second.
  • the adjuvanted latex paste comprising hydrophilic functions acquires little mechanical strength for approximately 400 minutes, unlike the cement paste without additives.
  • cementitious matrix adjuvanted with latex comprising hydrophilic functions exhibits a significant delay in setting.
  • Tests are carried out by adding hydrated calcium silicates to the cement matrix.
  • Figure 3 shows the decrease in setting delay obtained with an addition of 50% by weight of CSH_0.66 relative to the mass of latex. If we refer to the elastic modulus value of 300 kPa as being able to be taken as an indication of start of setting, the addition of latex multiplies the setting time by 4.3, while the latex-CSH mixture only multiplies it by 1, 7.
  • Tests are carried out by mixing, before adding hydraulic binder, the C-S-H and the latex comprising hydrophilic functions.
  • the premixing of the latex with C-S-H further reduces the setting time and all the more that the duration of the mixing is great.
  • FIG. 4 shows the results obtained with a C-S-H_1, 5 mixed with the turbula at 25 ° C. with the latex and the amount of water necessary for mixing the cement.
  • the calcium stoichiometry of C-S-H in other words the value of the coefficient a, also has an effect on the setting time. As seen in Figure 4, the lower the ratio the less the setting of the dough is delayed.
  • PSB150 latex to the cement paste considerably increases the deformation tolerable by the paste since it is then about 0.02%.
  • the addition of a latex-C-S-H mixture further increases the maximum deformation tolerable by the paste and all the more so since the latex and the C-S-H are mixed for a long time before adding the cement paste.
  • the maximum deformation reaches 0.05%, or more than twice the tolerable deformation of the paste adjuvanted by latex only.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Civil Engineering (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
EP03761652A 2002-06-28 2003-06-27 Verfahren zur beschleunigung des abbindens einer anorganischen hydraulischen bindemittelzusammensetzung die ein zusatsmittel mit hydrophiler funktioneller grouppe enthält, die erhaltene zusammensetzung und deren verwendung Ceased EP1517870A2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0208088A FR2841549B1 (fr) 2002-06-28 2002-06-28 Procede pour accelerer la prise d'une composition de liants mineraux hydrauliques adjuventee en additif comprenant des fonctions hydrophiles, ainsi que la compostion susceptible d'etre obtenue par ce procede et son utilisation
FR0208088 2002-06-28
PCT/FR2003/001991 WO2004002915A2 (fr) 2002-06-28 2003-06-27 Procede pour accelerer la prise d'une composition de liants mineraux hydrauliques adjuventee en additif comprenant des fonctions hydrophiles, composition obtenue et son utilisation

Publications (1)

Publication Number Publication Date
EP1517870A2 true EP1517870A2 (de) 2005-03-30

Family

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Application Number Title Priority Date Filing Date
EP03761652A Ceased EP1517870A2 (de) 2002-06-28 2003-06-27 Verfahren zur beschleunigung des abbindens einer anorganischen hydraulischen bindemittelzusammensetzung die ein zusatsmittel mit hydrophiler funktioneller grouppe enthält, die erhaltene zusammensetzung und deren verwendung

Country Status (5)

Country Link
US (1) US20060107874A1 (de)
EP (1) EP1517870A2 (de)
AU (1) AU2003258829A1 (de)
FR (1) FR2841549B1 (de)
WO (1) WO2004002915A2 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006049524A1 (de) 2006-10-20 2008-04-24 Evonik Degussa Gmbh Wässrige Dispersionen gefällter Kieselsäuren und Silikate zur Steigerung der Frühfestigkeit in zementartigen Zubereitungen
CA2788620C (en) * 2010-04-21 2018-04-24 Basf Se Use of csh suspensions in well cementing
US9409820B2 (en) * 2010-04-21 2016-08-09 Basf Se Use of CSH suspensions in well cementing
US8561701B2 (en) * 2010-12-21 2013-10-22 Halliburton Energy Services, Inc. Methods for cementing in a subterranean formation using a cement composition containing calcium silicate hydrate seeds
US10260155B2 (en) * 2016-01-28 2019-04-16 Council Of Scientific & Industrial Research Calcium silicate hydrate anion exchange membrane useful for water electrolysis and fuel cells and a process for the preparation thereof
WO2021152169A1 (en) * 2020-02-01 2021-08-05 Celanese Switzerland Ag Cementitious composition additive for machine application
US12570889B2 (en) * 2024-04-03 2026-03-10 Saudi Arabian Oil Company Polymer-based latex for cementing fluids

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH667096A5 (de) * 1985-11-22 1988-09-15 Sika Ag Verfahren zur herstellung eines bau- und/oder konstruktionsmaterials.
FR2708592B1 (fr) * 1993-07-29 1995-09-29 Lafarge Coppee Agent accélérateur de prise et du durcissement des liants hydrauliques siliciques.
DE4434010C2 (de) * 1994-09-23 2001-09-27 Sueddeutsche Kalkstickstoff Redispergierbare Polymerisatpulver, Verfahren zu deren Herstellung und Verwendung
FR2740461B1 (fr) 1995-10-25 1997-12-19 Rhone Poulenc Chimie Composition pulverulente redispersable dans l'eau de polymeres filmogenes prepares a partir de monomeres a insaturation ethylenique
FR2746095B1 (fr) * 1996-03-15 1998-05-22 Suspensions aqueuses de silice et leurs applications dans des compositions a base de liant mineral
US6197863B1 (en) * 1997-07-31 2001-03-06 Wacker-Chemie Gmbh Crosslinkable powder composition which is redispersible in water
DE19733157A1 (de) * 1997-07-31 1999-02-04 Wacker Chemie Gmbh Vernetzbare, in Wasser redispergierbare Pulverzusammensetzung
US6245142B1 (en) * 1999-01-12 2001-06-12 Halliburton Energy Services, Inc. Flow properties of dry cementitious materials
DE19901307C1 (de) * 1999-01-15 2000-06-21 Clariant Gmbh Dispersionspulver enthaltend teilacetalisierte, wasserlösliche Polyvinylalkohole, Verfahren zu deren Herstellung sowie deren Verwendung
US7041167B2 (en) * 2001-03-05 2006-05-09 James Hardie International Finance B.V. Low density accelerant and strength enhancing additive for cementitious products and methods of using same
US6644405B2 (en) * 2002-03-21 2003-11-11 Halliburton Energy Services, Inc. Storable water-microsphere suspensions for use in well cements and methods
US6889767B2 (en) * 2003-02-28 2005-05-10 Halliburton E{umlaut over (n)}ergy Services, Inc. Cementing compositions and methods of cementing in a subterranean formation using an additive for preventing the segregation of lightweight beads.
US6983800B2 (en) * 2003-10-29 2006-01-10 Halliburton Energy Services, Inc. Methods, cement compositions and oil suspensions of powder

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004002915A2 *

Also Published As

Publication number Publication date
WO2004002915A3 (fr) 2004-04-08
AU2003258829A8 (en) 2004-01-19
AU2003258829A1 (en) 2004-01-19
WO2004002915A2 (fr) 2004-01-08
FR2841549A1 (fr) 2004-01-02
US20060107874A1 (en) 2006-05-25
FR2841549B1 (fr) 2004-08-13

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