WO2009015520A1 - Cement-based grout composition - Google Patents

Cement-based grout composition Download PDF

Info

Publication number
WO2009015520A1
WO2009015520A1 PCT/CN2007/002330 CN2007002330W WO2009015520A1 WO 2009015520 A1 WO2009015520 A1 WO 2009015520A1 CN 2007002330 W CN2007002330 W CN 2007002330W WO 2009015520 A1 WO2009015520 A1 WO 2009015520A1
Authority
WO
WIPO (PCT)
Prior art keywords
composition
cement based
cement
based grout
present
Prior art date
Application number
PCT/CN2007/002330
Other languages
French (fr)
Inventor
De Peuter Frans
Jiangang Xin
Original Assignee
Basf Construction Chemicals (Shanghai) Co. Ltd
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 Basf Construction Chemicals (Shanghai) Co. Ltd filed Critical Basf Construction Chemicals (Shanghai) Co. Ltd
Priority to PCT/CN2007/002330 priority Critical patent/WO2009015520A1/en
Priority to PCT/EP2008/060056 priority patent/WO2009016230A2/en
Publication of WO2009015520A1 publication Critical patent/WO2009015520A1/en

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
    • 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
    • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
    • C04B22/008—Cement and like inorganic materials added as expanding or shrinkage compensating ingredients in mortar or concrete compositions, the expansion being the result of a recrystallisation
    • 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
    • C04B2103/10—Accelerators; Activators
    • C04B2103/12—Set accelerators
    • 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
    • C04B2111/34—Non-shrinking or non-cracking 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
    • C04B2111/70—Grouts, e.g. injection mixtures for cables for prestressed concrete

Definitions

  • the present invention relates to non-shrinkage cement based grout during and after setting.
  • the present invention pertains to non-shrinkage hydraulic cement based grout composition comprising a hydraulic binder , a rheology modifier, plasitcisers, expanding agents, shrinkage compensation agents, and optionally additional retarders.
  • the said grout composition does not shrink during and after setting.
  • Expansive cement based grout is made of cement, admixtures, aggregate and mineral additives. Expansive cement based grout has many features after being mixed with water, for instance, fast hardening and development of high early strength. It is known in the art that cement-based grout has an early age expansion, i.e. after mixing with water; the volume expansion starts immediately, which could last for about 3 hours. During the process of cement grout setting after approximately 3 hours, the volume of the cement grout starts shrinking. This shrinkage is observed between 3 hours and 24 hours after mixing with water.
  • Cement based grout is mainly used for anchoring bolts, the underpinning of equipment base plates, strengthening of concrete columns and beams, replacement of deteriorated concrete.
  • the shrinkage of cement-based grouts can cause bearing problems when underpinning base plates of heavy vibrating machinery.
  • cement based-grouts shall have a positive expansion between 0 and 3 hours, and between 3 and 24 hours after mixing. It means that during the process of cement based grout setting and hardening, the volume does not reduce.
  • US 5,378,279 disclosed cement for making a ready-to-use, self-smoothing, self-leveling and non-shrinkage mortar or concrete, which comprises a hydraulic binder, a plasticising agent and an expanding agent.
  • the cement composition is not sufficient for grouts
  • the object of the US 5,378,279 is principally for a mortar or concrete used for constructing screeds or slabs, and grouts are not mentioned.
  • the present invention provides a new cement based grout composition
  • a new cement based grout composition comprising a hydraulic binder, an expanding agent, a plasticiser, and a shrinkage compensation agent in an amount of 0.05 to 5% by weight of the composition.
  • the present invention provides a new cement based grout composition
  • a new cement based grout composition comprising a hydraulic binder, an expanding agent, a plasticiser, and a shrinkage compensation agent in a amount of 0.05 to 5% by weight of the composition and additional additives.
  • Said additional additives comprises a rheology modifier, and/ or retarders,
  • the present invention also provides a method of making the cement based grout composition of the present invention by dry mixing a hydraulic binder, an expanding agent, a plasticiser, and a shrinkage compensation agent in a amount of 0.05 to 5% by weight of the composition.
  • Figure 1 illustrates the comparison of the volume change of the cement grout composition in the prior art with that of the cement grout composition of the present invention.
  • Standard represents the cement grout composition in the prior art.
  • New represents the cement grout composition of the present invention.
  • the curves on the curing time (X-axis) are shifted away from 0.
  • the cement based grout composition comprises a hydraulic binder, , an expanding agent, a plasticiser, and a shrinkage compensation agent in a amount of 0.05 to 5% by weight of the composition , optionally additional additives, for example a rheology modifier, retarders and/or accelerators, and sand if needed.
  • Grout as used herein is a mixture of cement, sand, and additives, which mixs with water to be used to fill cracks and cavities, sometimes used under base plates to obtain uniform bearing surfaces.
  • Said hydraulic binder can be used in the present invention includes, but not limited to, Portland cement, and other known binders to the skilled artisan in the art.
  • the amount of the hydraulic binder that is used in the cement based grout composition of the present invention is in the range of 25 to 99.9 % percent by weight of the total cement based grout composition of the present invention.
  • any known rheology modifiers in the art can be added into the cement based grout composition of the present invention.
  • Said rheology modifier includes but not limited to, Silica fume, bentonite, etc.
  • the range of the amount of said rheology modifier added in the composition of the present invention is from 0 to 5 % percent by weight of the total cement based grout composition of the present invention.
  • plasticisers can be used in the cement based grout composition of the present invention.
  • Said plasticiser includes but not limited to lignosulphonates, naphthalene sulfonate, polycarboxylates, melamine formaldehyde condensates, sacharose, sodium gluconate, sulphonic acids, sulphonated naphthalene formaldehyde, carbohydrate, amino-or polyhydroxycarboxylic acids, etc.
  • the preferred plasticiser includes lignosulphonates, naphthalene sulfonate, polycarboxylates, melamine formaldehyde condensates.
  • the amount of the plasticisers added in the composition of the present invention is in the range of from 0.05 to 1.0 percent by weight of the total cement based grout composition of the present invention.
  • the expanding agents are suitable for the composition of the present invention includes aluminium powder, calcium carbide, quicklime, hydrogen peroxide, powdered iron, calcium hypochlorite, magnesium oxide, vinyl resin, etc..
  • aluminium powder and calcium sulfoaluminate are suitable.
  • the amount of the expanding agents added in the composition of the present invention can be adjusted according to different conditions and purposes of the present invention.
  • the amount of aluminum powder which is added in the composition of the present invention is up to 0.001 % percent by weight of the total cement based grout composition of the present invention; the amount of calcium sulfoaluminate added in the composition of the present invention is in the range of from 0 to 5 % by weight of the total cement based grout composition of the present invention.
  • a shrinkage compensation agent is also added in the composition of the present invention.
  • a shrinkage compensation agent refers to compounds or materials to induce expansion of the volume and thereafter reduce shrinkage of the cementitious grouts composition.
  • shrinkage compensation agents are selected of the group consisting of calcium formiate, alumina cement, waterglass, calciumchloride, sodiumcarbonate, sodiumbicarbonate, sodiumaluminate, potassiumcarbonate, aluminiumsulphate, calciumformiate, triethanolamine, sodiumfluoride, suttonte salt (NaKC4H4O6.4H2O), aluminum cement, calciumlactate, calciumnitrate, sodiumsulphate, aluminumhydroxide, calciumnitrite, calciumnitrate etc.
  • the amount of the shrinkage compensation agents are in the range of 0.05 to 5 % by weight of the total composition of the present invention.
  • the amount of the shrinkage compensation agents is in a range of 0.05 to 3 % by weight of the total composition of the present invention. In more preferable embodiments, the amount of the shrinkage compensation agent is in a range of 0.05 to 2 % by weight of the total composition of the present invention.
  • the addition of shrinkage compensation agents, especially of calium formiate to the cement based grout brings unexpected expansion during the process of setting of the cement based grout, especially, after the early age expansion, for instance, after about three hours, the shrinkage of the cement based grout does not start.
  • the amount of shrinkage compensation agents, for instance, calcium formiate added in the composition of the present invention is in the range of 0.05 to 5 % by weight of the total composition of the present invention, hi a preferable embodiment of the present invention, the composition of the present invention contains alumina cement as a shrinkage compensation agent, in a range of 0.05 to 5 by weight of the total composition of the present invention.
  • the composition of the present invention may comprise additional additives, for instance, retarders, in the range of 0.01 to 5 % percent by weight of the total composition of the present invention.
  • Retarders are to delay gelling and setting, said retarders suitable for the present invention includes but not limited to: methylcellulose, carboxymethylcellulose, caseine, dextrine, sodium and pottasium phosphate, sodium and pottasium phosphonate, ammonium phoshate and phosphonate, magnesiumsilicofluoride, boric acid, alkali borates, hydroxycarboxyacids, and their salts (sodium and/or pottasium), tartaric acid, gluconic acid, citric acid, glucose, salicylic acid, saccharose, gluconic acid, lignosulphonate, EDTA, zinkoxide, leadoxide, etc.
  • a preferable retarder of the present invention is lignosuphonates.
  • the speed of the expansion of the volume of the cement based grout composition can be determined by altering the ratio of shrinkage compensation agents and retarders. As illustrated in the Table II, with different ratio of calcium formiate and calcium lignosulfonate, the linear expansion of the volume is changed in function of time.
  • the cement based grout composition comprises Portland cement in amount of 25-99.9%, 0-5% rheology modifier, 0..05-1.0% plasticisers, preferably 0.05 to 0.75% of plasticisers, 0-5% expansive agents, 0.05-5% shrinkage compensation agent by weight of the total cement based grout composition of the present invention, and other additives, for instance, retarders and sand.
  • graded silica sand is added in the composition of the present invention.
  • Other traditional admixtures known in the art also can be added in the composition of the present invention, these admixtures are, but not limited to:
  • a water-retaining agent selected from the following active substances: calcium abietate, polyvinyl acetate sodium alginate, bentonite stabilized casein, fly-ash hydraulic lime, starch kieselguhr, polyvinyl stearate.
  • a colloidal agent selected from the following active substances:albuminoid, sodium alginate starch, carboxymethylcellulose, stabilized casein, cellulose dextrin, tannin, starch.
  • a stabilizing agent selected from the following active substances: calcium abietate, clay sodium bicarbonate or potassium bicarbonate alumina colloid, fly-ash hydraulic lime, cellulose ether sodium silicate.
  • a hardening catalyst selected from the following active substances: lithium carbonate, lithium chloride sodium aluminate, sodium sulphate.
  • An anti-foaming agent selected from the following active substances: fat alcohols, light alcohols, polyoxethylene alkyphenol hydrocarbon emulsions, nonylphenol, tributyl phosphate butyl phtalate, degraded proteins, silicones butyl stearate.
  • active substances fat alcohols, light alcohols, polyoxethylene alkyphenol hydrocarbon emulsions, nonylphenol, tributyl phosphate butyl phtalate, degraded proteins, silicones butyl stearate.
  • a waterproofing agent selected from the following active substances: albumen, caprylic acid, capric acid, oleic acid sodium alginate, alum, starch, sodium carbonate, potassium carbonate, bentonite, fly-ash, fat limes, colophony.
  • a bonding agent selected from the following active substances: propionate copolymer, polyvinyl chloride polyvinyl acetate, starch, carboxymethyl cellulose stabilized casein, fat limes, methyl cellulose, and gelatin.
  • hydraulic binders or aggregates could be used according to the present invention, for instance, Portland cement, blast furnace slag cement, composite cements containg between 5 and 95 % of portland cement clincker, supersulphated cement.
  • the present invention provides a method of making the cement based grout composition of the present invention, comprising dry mixing a hydraulic binder, a plasitciser, an expanding agent, and shrinkage compensation agents.
  • the present invention provides a method of making the cement based grout composition of the present invention, further comprising adding additional additives, for instance, retarders and/or sands.
  • the present invention also provides a method of making cement based grouts by adding water in the temperature between about 2°C and 35 0 C.
  • the amount of water added in the composition is about 17% of the composition by weight.
  • the method of the present invention comprises dry mixing Portland cement in amount of 25-99.9%, 0-5% rheology modifier, 0.05-1.0 % plasticisers, 0-5% expansive agents, 0.01-5% shrinkage compensation agent percentage by weight of the total cement based grout composition of the present invention, and other additives, for instant, retarders and graded silica sand.
  • the cement based grout composition of the present invention undergoes an overall change in volume on drying.
  • the grout composition of the present invention exhibits a controlled overall expansion which is desirable for applications such as underpinning and other types of repair work for which a small expansion would tighten the joint between new and old work.
  • the expansion measurement of the expansion of the above grout composition shows that after the expansion during the first three hours, a positive expansion also is obtained during 3 to 24 hours after mixing.
  • the property is required by the newly amended «National Standard of China for application technique of cement based grout».
  • the cement based grout composition of the present invention also shows high early strength that ensures rapid commissioning of new equipment and structures, and minimum downtime or repair work; the cement based grout composition also shows high ultimate strength to ensure good bearing capacities of installations under static and moderate repetitive loads.
  • the present invention is further illustrated by the following examples. The examples serve only for the illustrative purpose and are not to be construed as limits to the scope of the invention in any way. Examples
  • a typical cement based grout composition is made and tested to collect the technical data relating to the volume changes of the grout, the linear expansion of the cement based grout composition is measured according to the present invention.
  • the test of the volume changes is conducted in the following manner:
  • Grout is poured into a 1000 cm 3 steel mold; the grout is immediately covered with a glass plate - the portion exposed to the air is covered with wet burlap; a measuring clock is placed on top of the glass plate - the change in dimension is recorded during the first 3 hours, each 1 A hour and at 24 hours.

Landscapes

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

Abstract

The present invention relates to non-shrinkage cement based grout during and after setting. In particularly, the present invention pertains to non-shrinkage hydraulic cement based grout composition comprising a hydraulic binder, a rheology modifier, plasitcisers, expanding agents, shrinkage compensation agents, and optionally additional retarders. The said grout composition does not shrink during and after setting.

Description

Cement-based grout composition
Field of the invention
The present invention relates to non-shrinkage cement based grout during and after setting. In particularly, the present invention pertains to non-shrinkage hydraulic cement based grout composition comprising a hydraulic binder , a rheology modifier, plasitcisers, expanding agents, shrinkage compensation agents, and optionally additional retarders. The said grout composition does not shrink during and after setting.
Background of the invention
Expansive cement based grout is made of cement, admixtures, aggregate and mineral additives. Expansive cement based grout has many features after being mixed with water, for instance, fast hardening and development of high early strength. It is known in the art that cement-based grout has an early age expansion, i.e. after mixing with water; the volume expansion starts immediately, which could last for about 3 hours. During the process of cement grout setting after approximately 3 hours, the volume of the cement grout starts shrinking. This shrinkage is observed between 3 hours and 24 hours after mixing with water.
Moisture loss from the hardened cement-based grout leads to setting and drying shrinkage movements. In order to overcome the shrinkage, which has been a problem in the construction field for years, expanding agents were added in the grout to counter act the volume reduction. However, after about three hours, the shrinkage starts and it continues till the end of setting. Cement based grout is mainly used for anchoring bolts, the underpinning of equipment base plates, strengthening of concrete columns and beams, replacement of deteriorated concrete. For example, the shrinkage of cement-based grouts can cause bearing problems when underpinning base plates of heavy vibrating machinery.
Moreover, a newly amended Chinese national standard for the application technique of cement based grout requires that cement based-grouts shall have a positive expansion between 0 and 3 hours, and between 3 and 24 hours after mixing. It means that during the process of cement based grout setting and hardening, the volume does not reduce.
US 5,378,279 disclosed cement for making a ready-to-use, self-smoothing, self-leveling and non-shrinkage mortar or concrete, which comprises a hydraulic binder, a plasticising agent and an expanding agent. However, the cement composition is not sufficient for grouts, the object of the US 5,378,279 is principally for a mortar or concrete used for constructing screeds or slabs, and grouts are not mentioned.
Therefore, there is a need for an improved cement based grout without shrinkage during the setting process.
Summary of the invention The present invention provides a new cement based grout composition comprising a hydraulic binder, an expanding agent, a plasticiser, and a shrinkage compensation agent in an amount of 0.05 to 5% by weight of the composition.
The present invention provides a new cement based grout composition comprising a hydraulic binder, an expanding agent, a plasticiser, and a shrinkage compensation agent in a amount of 0.05 to 5% by weight of the composition and additional additives. Said additional additives comprises a rheology modifier, and/ or retarders,
The present invention also provides a method of making the cement based grout composition of the present invention by dry mixing a hydraulic binder, an expanding agent, a plasticiser, and a shrinkage compensation agent in a amount of 0.05 to 5% by weight of the composition. The detailed description of the drawing
Figure 1 illustrates the comparison of the volume change of the cement grout composition in the prior art with that of the cement grout composition of the present invention. Standard represents the cement grout composition in the prior art. New represents the cement grout composition of the present invention. For a better presentation, the curves on the curing time (X-axis) are shifted away from 0.
Detailed description of the invention The cement based grout composition comprises a hydraulic binder, , an expanding agent, a plasticiser, and a shrinkage compensation agent in a amount of 0.05 to 5% by weight of the composition , optionally additional additives, for example a rheology modifier, retarders and/or accelerators, and sand if needed.
"Grout" as used herein is a mixture of cement, sand, and additives, which mixs with water to be used to fill cracks and cavities, sometimes used under base plates to obtain uniform bearing surfaces.
Said hydraulic binder can be used in the present invention includes, but not limited to, Portland cement, and other known binders to the skilled artisan in the art. The amount of the hydraulic binder that is used in the cement based grout composition of the present invention is in the range of 25 to 99.9 % percent by weight of the total cement based grout composition of the present invention.
Any known rheology modifiers in the art can be added into the cement based grout composition of the present invention. Said rheology modifier includes but not limited to, Silica fume, bentonite, etc. The range of the amount of said rheology modifier added in the composition of the present invention is from 0 to 5 % percent by weight of the total cement based grout composition of the present invention.
Any plasticisers can be used in the cement based grout composition of the present invention. Said plasticiser includes but not limited to lignosulphonates, naphthalene sulfonate, polycarboxylates, melamine formaldehyde condensates, sacharose, sodium gluconate, sulphonic acids, sulphonated naphthalene formaldehyde, carbohydrate, amino-or polyhydroxycarboxylic acids, etc. According to the present invention, the preferred plasticiser includes lignosulphonates, naphthalene sulfonate, polycarboxylates, melamine formaldehyde condensates. The amount of the plasticisers added in the composition of the present invention is in the range of from 0.05 to 1.0 percent by weight of the total cement based grout composition of the present invention. The expanding agents are suitable for the composition of the present invention includes aluminium powder, calcium carbide, quicklime, hydrogen peroxide, powdered iron, calcium hypochlorite, magnesium oxide, vinyl resin, etc.. Preferably, aluminium powder and calcium sulfoaluminate are suitable. The amount of the expanding agents added in the composition of the present invention can be adjusted according to different conditions and purposes of the present invention. In one embodiment of the present invention, the amount of aluminum powder which is added in the composition of the present invention is up to 0.001 % percent by weight of the total cement based grout composition of the present invention; the amount of calcium sulfoaluminate added in the composition of the present invention is in the range of from 0 to 5 % by weight of the total cement based grout composition of the present invention. According to the present invention, a shrinkage compensation agent is also added in the composition of the present invention. "A shrinkage compensation agent" as used herein refers to compounds or materials to induce expansion of the volume and thereafter reduce shrinkage of the cementitious grouts composition. According to the present invention, shrinkage compensation agents are selected of the group consisting of calcium formiate, alumina cement, waterglass, calciumchloride, sodiumcarbonate, sodiumbicarbonate, sodiumaluminate, potassiumcarbonate, aluminiumsulphate, calciumformiate, triethanolamine, sodiumfluoride, seignette salt (NaKC4H4O6.4H2O), aluminum cement, calciumlactate, calciumnitrate, sodiumsulphate, aluminumhydroxide, calciumnitrite, calciumnitrate etc. The amount of the shrinkage compensation agents are in the range of 0.05 to 5 % by weight of the total composition of the present invention. In one embodiment of the invention, preferably the amount of the shrinkage compensation agents is in a range of 0.05 to 3 % by weight of the total composition of the present invention. In more preferable embodiments, the amount of the shrinkage compensation agent is in a range of 0.05 to 2 % by weight of the total composition of the present invention. According to the present invention, the addition of shrinkage compensation agents, especially of calium formiate to the cement based grout brings unexpected expansion during the process of setting of the cement based grout, especially, after the early age expansion, for instance, after about three hours, the shrinkage of the cement based grout does not start. The amount of shrinkage compensation agents, for instance, calcium formiate added in the composition of the present invention is in the range of 0.05 to 5 % by weight of the total composition of the present invention, hi a preferable embodiment of the present invention, the composition of the present invention contains alumina cement as a shrinkage compensation agent, in a range of 0.05 to 5 by weight of the total composition of the present invention.
The composition of the present invention may comprise additional additives, for instance, retarders, in the range of 0.01 to 5 % percent by weight of the total composition of the present invention. Retarders are to delay gelling and setting, said retarders suitable for the present invention includes but not limited to: methylcellulose, carboxymethylcellulose, caseine, dextrine, sodium and pottasium phosphate, sodium and pottasium phosphonate, ammonium phoshate and phosphonate, magnesiumsilicofluoride, boric acid, alkali borates, hydroxycarboxyacids, and their salts (sodium and/or pottasium), tartaric acid, gluconic acid, citric acid, glucose, salicylic acid, saccharose, gluconic acid, lignosulphonate, EDTA, zinkoxide, leadoxide, etc. A preferable retarder of the present invention is lignosuphonates. hi one embodiment of the present invention, the speed of the expansion of the volume of the cement based grout composition can be determined by altering the ratio of shrinkage compensation agents and retarders. As illustrated in the Table II, with different ratio of calcium formiate and calcium lignosulfonate, the linear expansion of the volume is changed in function of time. hi one embodiment of the present invention, the cement based grout composition comprises Portland cement in amount of 25-99.9%, 0-5% rheology modifier, 0..05-1.0% plasticisers, preferably 0.05 to 0.75% of plasticisers, 0-5% expansive agents, 0.05-5% shrinkage compensation agent by weight of the total cement based grout composition of the present invention, and other additives, for instance, retarders and sand. hi one embodiment of the present invention, graded silica sand is added in the composition of the present invention. Other traditional admixtures known in the art also can be added in the composition of the present invention, these admixtures are, but not limited to:
A water-retaining agent selected from the following active substances: calcium abietate, polyvinyl acetate sodium alginate, bentonite stabilized casein, fly-ash hydraulic lime, starch kieselguhr, polyvinyl stearate. A colloidal agent, selected from the following active substances:albuminoid, sodium alginate starch, carboxymethylcellulose, stabilized casein, cellulose dextrin, tannin, starch.
A stabilizing agent, selected from the following active substances: calcium abietate, clay sodium bicarbonate or potassium bicarbonate alumina colloid, fly-ash hydraulic lime, cellulose ether sodium silicate. A hardening catalyst, selected from the following active substances: lithium carbonate, lithium chloride sodium aluminate, sodium sulphate.
An anti-foaming agent, selected from the following active substances: fat alcohols, light alcohols, polyoxethylene alkyphenol hydrocarbon emulsions, nonylphenol, tributyl phosphate butyl phtalate, degraded proteins, silicones butyl stearate. In the usual manner, such an additive or agent eliminates any foaming and bubbles resulting from air entrainment during mixing, transport and handling of thegrouts.
A waterproofing agent, selected from the following active substances: albumen, caprylic acid, capric acid, oleic acid sodium alginate, alum, starch, sodium carbonate, potassium carbonate, bentonite, fly-ash, fat limes, colophony.
A bonding agent, selected from the following active substances: propionate copolymer, polyvinyl chloride polyvinyl acetate, starch, carboxymethyl cellulose stabilized casein, fat limes, methyl cellulose, and gelatin.
Other hydraulic binders or aggregates could be used according to the present invention, for instance, Portland cement, blast furnace slag cement, composite cements containg between 5 and 95 % of portland cement clincker, supersulphated cement.
The present invention provides a method of making the cement based grout composition of the present invention, comprising dry mixing a hydraulic binder, a plasitciser, an expanding agent, and shrinkage compensation agents. The present invention provides a method of making the cement based grout composition of the present invention, further comprising adding additional additives, for instance, retarders and/or sands.
The present invention also provides a method of making cement based grouts by adding water in the temperature between about 2°C and 350C. In one embodiment of the present invention, the amount of water added in the composition is about 17% of the composition by weight.
In one embodiment of the present invention, the method of the present invention comprises dry mixing Portland cement in amount of 25-99.9%, 0-5% rheology modifier, 0.05-1.0 % plasticisers, 0-5% expansive agents, 0.01-5% shrinkage compensation agent percentage by weight of the total cement based grout composition of the present invention, and other additives, for instant, retarders and graded silica sand.
According to the present invention, after mixing the cement based grout composition of the present invention, the cement based grout composition undergoes an overall change in volume on drying. The grout composition of the present invention exhibits a controlled overall expansion which is desirable for applications such as underpinning and other types of repair work for which a small expansion would tighten the joint between new and old work.
Unexpectedly, the expansion measurement of the expansion of the above grout composition shows that after the expansion during the first three hours, a positive expansion also is obtained during 3 to 24 hours after mixing. The property is required by the newly amended «National Standard of China for application technique of cement based grout».
Moreover, the cement based grout composition of the present invention also shows high early strength that ensures rapid commissioning of new equipment and structures, and minimum downtime or repair work; the cement based grout composition also shows high ultimate strength to ensure good bearing capacities of installations under static and moderate repetitive loads. The present invention is further illustrated by the following examples. The examples serve only for the illustrative purpose and are not to be construed as limits to the scope of the invention in any way. Examples
In order to make a comparison of the typical cement based grout composition to the composition of the present invention, a typical cement based grout composition is made and tested to collect the technical data relating to the volume changes of the grout, the linear expansion of the cement based grout composition is measured according to the present invention. The test of the volume changes is conducted in the following manner:
Grout is poured into a 1000 cm3 steel mold; the grout is immediately covered with a glass plate - the portion exposed to the air is covered with wet burlap; a measuring clock is placed on top of the glass plate - the change in dimension is recorded during the first 3 hours, each 1A hour and at 24 hours. Example 1 Comparative test
Mixing the following ingredients with water at the temperature of 10-35 centigrade. Typical composition (%) by weight
Portland cement 45.88
Silica fume 2.87
Melamine formaldehyde condensate 0.58 Calcium sulfoaluminate 2.33 Aluminum powder 0.0007
Sand 48.3393
Measurement of the change of volume of the grout shows that there was a positive expansion of the volume during the first 3 hours after casting, however, the volume reduction was observed in the period between 3 and 24 hours after casting. Example 2
Further experiments were done by adding calcium formiate into the cement based grout.
Exploratory experiments revealed that it is possible to create a positive expansion between 3 and 24 hours through the addition of calcium formiate.
The results of the experiments are summarized in the enclosed table I.
Table I
Figure imgf000011_0001
linear expansion (maximum observed value = 100 %) It is evident that the cement based grout compositions of the present invention create a positive expansion during 3-24 hours after casting. Example 3
Calcium lignosulphonate as a retarder or another shrinkage compensation agent such as alumina cement is added to the composition in different amounts; the speed of expansion of the volume of the cement based grout can be determined by altering the ratio of the shrinkage compensation agent and the retarder. The linear expansion was measured in function of time (hours). It shows that the speed of the expansion can be controlled. The results are illustrated in Table II. Table II
Figure imgf000012_0001
Equivalents
It is understood to the skilled person in the art that there are modifications, variations and amendments to the present invention. AU the modifications, variations and amendments without undue experiments and departing from the spirit and scope of the present invention are included by the Claims.

Claims

What we claim are:
1. A cement based grout composition, comprising a hydraulic binder, a plastiziser, an expanding agent, and a shrinkage compensation agent, said shrinkage compensation agent in amount of 0.05 to 5 % by weight of said composition.
2. The cement based grout composition according to Claims 1, wherein said shrinkage compensation agent selected of the group consisting of calcium formiate, alumina cement, waterglass, calciumchloride, sodiumcarbonate, sodiumbicarbonate, sodiumaluminate, potassiumcarbonate, aluminiumsulphate, calciumformiate, triethanolamine, sodiumfluoride, seignette salt (NaKC4H4O6.4H2O), aluminum cement, calciumlactate, calciumnitrate, sodiumsulphate, aluminumhydroxide, and calciumnitrite.
3. The cement based grout composition according to Claims 1 , wherein the amount of said expanding agent is up to 5 % by weight of the said composition.
4. The cement based grout composition according to any one of Claims 1 to 3, wherein said composition further comprises additional additives, wherein said compositions contain a rheology modifier, and/or retarders.
5. The cement based grout composition according Claim 4, wherein said retarders are selected from the group consisting of methylcellulose, carboxymethylcellulose, caseine, dextrine, sodium and pottasium phosphate, sodium and pottasium phosphonate, ammonium phoshate and phosphonate, magnesiumsilicofluoride, boric acid, alkali borates, hydroxycarboxyacids, salts thereof (sodium and/or pottasium), tartaric acid, gluconic acid, citric acid, glucose, salicylic acid, saccharose, gluconic acid, lignosulphonate, EDTA, zinkoxide, and leadoxide.
6. A cement based grout composition, comprising shrinkage compensation agents in the amount of 0.05 to 5% by weight of the composition, wherein the volume change of said composition is positive.
7. A method of producing a cement based grout composition, comprising dry mixing a hydraulic binder, a plasticiser, an expanding agent, and a shrinkage compensation agent, said shrinkage compensation agent in amount of 0.05 to 5 % by weight of said composition.
8. A method of producing cement based grouts, comprising adding water into the cement based grout composition according to Claim 1.
9. The method of producing cement based grout according to Claim 8, adding water into the cement grout composition according to Claim 1 at temperature of 20C to 350C.
PCT/CN2007/002330 2007-08-02 2007-08-02 Cement-based grout composition WO2009015520A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2007/002330 WO2009015520A1 (en) 2007-08-02 2007-08-02 Cement-based grout composition
PCT/EP2008/060056 WO2009016230A2 (en) 2007-08-02 2008-07-31 Cement-based grout composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2007/002330 WO2009015520A1 (en) 2007-08-02 2007-08-02 Cement-based grout composition

Publications (1)

Publication Number Publication Date
WO2009015520A1 true WO2009015520A1 (en) 2009-02-05

Family

ID=40159540

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/CN2007/002330 WO2009015520A1 (en) 2007-08-02 2007-08-02 Cement-based grout composition
PCT/EP2008/060056 WO2009016230A2 (en) 2007-08-02 2008-07-31 Cement-based grout composition

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/060056 WO2009016230A2 (en) 2007-08-02 2008-07-31 Cement-based grout composition

Country Status (1)

Country Link
WO (2) WO2009015520A1 (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101973754A (en) * 2010-10-26 2011-02-16 山东大学 Quickly solidifying injecting paste material for shallow sealing
EP2412781A1 (en) * 2010-07-07 2012-02-01 Services Pétroliers Schlumberger Compositions and methods for well cementing
CN103058615A (en) * 2013-02-06 2013-04-24 长沙聚创建筑科技有限公司 High-fluidity micro-expansive grouting material and testing and preparation method thereof
CN104496255A (en) * 2014-11-28 2015-04-08 苏笮斌 TK-JH mineral interface active material, and preparation method and application method thereof
CN104817289A (en) * 2015-03-27 2015-08-05 武汉三源特种建材有限责任公司 Slow release retarder for compensating shrinkage concrete, and preparation method and application thereof
CN105503055A (en) * 2015-12-29 2016-04-20 上海建工集团股份有限公司 High-performance shield grouting material and preparation method thereof
CN106587699A (en) * 2016-12-08 2017-04-26 马清浩 Cement setting accelerator and preparation method thereof
WO2017106922A1 (en) * 2015-12-23 2017-06-29 Fine Powder Technologies Pty Ltd Cementitious composition
RU2641040C1 (en) * 2016-09-20 2018-01-15 Общество с ограниченной ответственностью "ПКФ" Plasticiser for ready-mixed concrete mixtures
CN109734391A (en) * 2019-02-28 2019-05-10 陈辉 A kind of construction wall grouting material
CN110218052A (en) * 2019-06-18 2019-09-10 河南兴安新型建筑材料有限公司 Early stage high-expansion cement base grouting material
CN110655347A (en) * 2019-11-05 2020-01-07 重庆中科建设（集团）有限公司 Super early strength agent and preparation method thereof
CN111825356A (en) * 2020-06-24 2020-10-27 浙江大学 High-activity regeneration auxiliary cementing material based on physical ball milling and chemical modification synergistic reinforcement of brick-concrete powder and preparation method thereof
WO2020236107A1 (en) * 2019-05-23 2020-11-26 Bursa Tekni̇k Üni̇versi̇tesi̇ A method for preparing an injection material and the obtained injection material
CN114605102A (en) * 2022-02-23 2022-06-10 青岛市地铁四号线有限公司 Quick-setting micro-expansion cement-based grouting material with anti-dispersion property and preparation method thereof
CN116514433A (en) * 2023-04-25 2023-08-01 北京瑞吉达科技有限公司 Composite additive and preparation method thereof
CN117534409A (en) * 2023-11-21 2024-02-09 西南交通大学 Single-liquid and double-liquid same-system grouting material and preparation method thereof

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AR082207A1 (en) 2010-07-15 2012-11-21 Lafarge Sa A CEMENTICIOUS BINDING, A FRAGUABLE CEMENTIC COMPOSITION, AND A CEMENTATION METHOD THAT USES
US9676668B2 (en) * 2012-06-28 2017-06-13 Redi-Mix, Llc Dry mix for composite cement
NO339038B1 (en) * 2012-09-25 2016-11-07 Yara Int Asa Use of calcium nitrate to prepare a cementitious composition and / or a cementitious solid and process for curing a cementitious composition at high ambient temperatures.
WO2016000772A1 (en) 2014-07-02 2016-01-07 M-I Drilling Fluids U.K. Limited Set on demand compositions
CN110342850A (en) * 2019-07-17 2019-10-18 南京永能新材料有限公司 A kind of efficient retarder for cement and preparation method thereof
TWI717228B (en) * 2020-03-11 2021-01-21 彩興股份有限公司 Concrete hardener composition
CN112592127B (en) * 2020-12-16 2022-09-16 江苏诺邦建材有限公司 Slow-release grouting material for steel shell immersed tube grouting and construction method thereof
WO2023150452A1 (en) * 2022-02-01 2023-08-10 Geothermic Solution, Inc. High thermal coefficient grout compositions and methods therefor
CN114524636B (en) * 2022-03-30 2022-12-23 郑州大学 Barium-containing super absorbent resin microsphere and preparation and application thereof
CN114634334A (en) * 2022-04-06 2022-06-17 湖州职业技术学院(湖州广播电视大学)(湖州社区大学) High-performance concrete material based on nano material
CN115215607B (en) * 2022-06-23 2023-06-23 山东大学 Coastal karst cement-based gel expansion grouting material and preparation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1074235A (en) * 1993-02-22 1993-07-14 中国建筑科学研究院建筑工程材料及制品研究所 Water-proof gypsum powder
JP2002308660A (en) * 2001-04-10 2002-10-23 Gaeart Kumagai Co Ltd Grout
WO2002098815A1 (en) * 2001-06-07 2002-12-12 Bpb Plc Cement binder based plate
CN1396138A (en) * 2002-07-11 2003-02-12 武汉武大巨成加固实业有限公司 Fast anchor type inorganic viscose grouting matenial and its preparing process
US20040094863A1 (en) * 2001-03-01 2004-05-20 Buerge Theodor A. Composite material and shaped article with thermal conductivity and specific gravity on demand

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2668076B2 (en) * 1988-03-10 1997-10-27 住友大阪セメント株式会社 Super fast hard non-shrink grout material
ZA961590B (en) * 1994-11-28 1996-08-26 Multi Construction Chemicals P A grout composition
JP3487133B2 (en) * 1997-07-01 2004-01-13 宇部興産株式会社 Ultra-fast hardening non-shrink grout material
US6251179B1 (en) * 1999-03-23 2001-06-26 The United States Of America As Represented By The Department Of Energy Thermally conductive cementitious grout for geothermal heat pump systems
US6749680B1 (en) * 2000-09-12 2004-06-15 The United States Of America As Represented By The Secretary Of The Interior Thin concrete repair system
EP1866260B1 (en) * 2005-03-24 2014-05-07 Jacques Bertrand Dry grout composition and capsule for anchoring reinforcing member, dowel or anchor elements
JP4718969B2 (en) * 2005-10-31 2011-07-06 電気化学工業株式会社 Foaming agent, non-shrink grout composition, and non-shrink grout material using the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1074235A (en) * 1993-02-22 1993-07-14 中国建筑科学研究院建筑工程材料及制品研究所 Water-proof gypsum powder
US20040094863A1 (en) * 2001-03-01 2004-05-20 Buerge Theodor A. Composite material and shaped article with thermal conductivity and specific gravity on demand
JP2002308660A (en) * 2001-04-10 2002-10-23 Gaeart Kumagai Co Ltd Grout
WO2002098815A1 (en) * 2001-06-07 2002-12-12 Bpb Plc Cement binder based plate
CN1396138A (en) * 2002-07-11 2003-02-12 武汉武大巨成加固实业有限公司 Fast anchor type inorganic viscose grouting matenial and its preparing process

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2412781A1 (en) * 2010-07-07 2012-02-01 Services Pétroliers Schlumberger Compositions and methods for well cementing
US8550162B2 (en) 2010-07-07 2013-10-08 Schlumberger Technology Corporation Compositions and methods for well cementing
CN101973754A (en) * 2010-10-26 2011-02-16 山东大学 Quickly solidifying injecting paste material for shallow sealing
CN103058615A (en) * 2013-02-06 2013-04-24 长沙聚创建筑科技有限公司 High-fluidity micro-expansive grouting material and testing and preparation method thereof
CN104496255B (en) * 2014-11-28 2017-01-18 苏笮斌 Mineral interface active material, and preparation method and application method thereof
CN104496255A (en) * 2014-11-28 2015-04-08 苏笮斌 TK-JH mineral interface active material, and preparation method and application method thereof
CN104817289A (en) * 2015-03-27 2015-08-05 武汉三源特种建材有限责任公司 Slow release retarder for compensating shrinkage concrete, and preparation method and application thereof
WO2017106922A1 (en) * 2015-12-23 2017-06-29 Fine Powder Technologies Pty Ltd Cementitious composition
US10793479B2 (en) 2015-12-23 2020-10-06 Fine Powder Technologies Pty Ltd Accelerator for hydraulic composition
CN105503055A (en) * 2015-12-29 2016-04-20 上海建工集团股份有限公司 High-performance shield grouting material and preparation method thereof
RU2641040C1 (en) * 2016-09-20 2018-01-15 Общество с ограниченной ответственностью "ПКФ" Plasticiser for ready-mixed concrete mixtures
CN106587699A (en) * 2016-12-08 2017-04-26 马清浩 Cement setting accelerator and preparation method thereof
CN109734391A (en) * 2019-02-28 2019-05-10 陈辉 A kind of construction wall grouting material
WO2020236107A1 (en) * 2019-05-23 2020-11-26 Bursa Tekni̇k Üni̇versi̇tesi̇ A method for preparing an injection material and the obtained injection material
US11840485B2 (en) 2019-05-23 2023-12-12 Bursa Teknik Üniversitesi Method for preparing an injection material and the obtained injection material
CN110218052A (en) * 2019-06-18 2019-09-10 河南兴安新型建筑材料有限公司 Early stage high-expansion cement base grouting material
CN110655347A (en) * 2019-11-05 2020-01-07 重庆中科建设（集团）有限公司 Super early strength agent and preparation method thereof
CN111825356A (en) * 2020-06-24 2020-10-27 浙江大学 High-activity regeneration auxiliary cementing material based on physical ball milling and chemical modification synergistic reinforcement of brick-concrete powder and preparation method thereof
CN114605102A (en) * 2022-02-23 2022-06-10 青岛市地铁四号线有限公司 Quick-setting micro-expansion cement-based grouting material with anti-dispersion property and preparation method thereof
CN114605102B (en) * 2022-02-23 2022-12-16 青岛市地铁四号线有限公司 Quick-setting micro-expansion cement-based grouting material with dispersibility resistance and preparation method thereof
CN116514433A (en) * 2023-04-25 2023-08-01 北京瑞吉达科技有限公司 Composite additive and preparation method thereof
CN116514433B (en) * 2023-04-25 2024-03-08 北京瑞吉达科技有限公司 Composite additive and preparation method thereof
CN117534409A (en) * 2023-11-21 2024-02-09 西南交通大学 Single-liquid and double-liquid same-system grouting material and preparation method thereof
CN117534409B (en) * 2023-11-21 2024-05-24 西南交通大学 Single-liquid and double-liquid same-system grouting material and preparation method thereof

Also Published As

Publication number Publication date
WO2009016230A3 (en) 2009-05-22
WO2009016230A2 (en) 2009-02-05

Similar Documents

Publication Publication Date Title
WO2009015520A1 (en) Cement-based grout composition
US5378279A (en) Enhanced cement mixed with selected aggregates
JP4725742B2 (en) Hydraulic composition
US8366825B2 (en) Rapid binder compositions containing a calcium salt for concrete components and structures
CN107572978A (en) Bar connecting sleeve grouting material and preparation method thereof
JP2015530353A (en) Hydraulic composition
WO2014015289A1 (en) Accelerated drying concrete compositions and methods of manufacturing thereof
JP6258697B2 (en) Fast-setting grout composition
US4921537A (en) Shrinkage compensated mortar material
CN113121173B (en) Anti-crack concrete and preparation method thereof
JP2006131488A (en) Acid resistant grout composition
EP3331837A1 (en) Castable material based on cementitious material with shrinkage resistance
KR20180060672A (en) Composition for construction materials and construction materials having the same
JP2000211961A (en) Hydraulic composition having self-fluidity
JP3728975B2 (en) Self-flowing hydraulic composition
CN110698088B (en) Retarded portland cement and preparation method thereof
US20220204405A1 (en) Hydraulic binder composition
JP2003171161A (en) Heat resisting, high strength concrete, and production method therefor
JP2021187730A (en) Binding material suitable for extrusion molding 3d printing and having fresh properties and mechanical properties
JP3242397B2 (en) Cement admixture and cement composition
JP2503772B2 (en) Fast-curing self-leveling flooring composition
JP6300365B2 (en) Underwater inseparable fast-hardening concrete and method for producing the same
CN110540401B (en) Sleeve grouting material for high-temperature steel bar connection and preparation method thereof
JP3026406B2 (en) Manufacturing method and construction method of self-smoothing cement mortar composition
JP4317736B2 (en) Injection material

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07785244

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07785244

Country of ref document: EP

Kind code of ref document: A1