CZ18784U1 - Mixture - cement setting agent based on cement clinker - Google Patents

Mixture - cement setting agent based on cement clinker Download PDF

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Publication number
CZ18784U1
CZ18784U1 CZ200819593U CZ200819593U CZ18784U1 CZ 18784 U1 CZ18784 U1 CZ 18784U1 CZ 200819593 U CZ200819593 U CZ 200819593U CZ 200819593 U CZ200819593 U CZ 200819593U CZ 18784 U1 CZ18784 U1 CZ 18784U1
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CZ
Czechia
Prior art keywords
cement
mixture
weight
μm
clinker
Prior art date
Application number
CZ200819593U
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Czech (cs)
Inventor
Penkov@Miroslav
Original Assignee
Penpor S. R. O.
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 Penpor S. R. O. filed Critical Penpor S. R. O.
Priority to PCT/CZ2007/000114 priority Critical patent/WO2009076913A1/en
Publication of CZ18784U1 publication Critical patent/CZ18784U1/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/0076Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials characterised by the grain distribution
    • C04B20/008Micro- or nanosized fillers, e.g. micronised fillers with particle size smaller than that of the hydraulic binder
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/0068Ingredients with a function or property not provided for elsewhere in C04B2103/00
    • C04B2103/0088Compounds chosen for their latent hydraulic characteristics, e.g. pozzuolanes
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/20Retarders
    • C04B2103/22Set retarders
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/90Reuse, recycling or recovery technologies cross-cutting to different types of waste
    • Y02W30/91Use of waste materials as fillers for mortars or concrete
    • Y02W30/92Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/90Reuse, recycling or recovery technologies cross-cutting to different types of waste
    • Y02W30/91Use of waste materials as fillers for mortars or concrete
    • Y02W30/94Use of waste materials as fillers for mortars or concrete from metallurgical processes

Abstract

The mixture for controlling the setting time of cemens based on clinker consists of the particle material of latently hydraulically active substances containing 0.3% to 60% by mass CaO, 0.5% to 65% by mass SiO2, 3% to 34% by mass Al2O3, 2% to 19% by mass Fe2O3, 0.5% to 10% by mass MgO, 0.5% to 36% by mass C, the material also contains TiO2, SO3, P2O5, K2O, Na2O in the amount from 0.04% to 11% by mass, the size of the particles is 1 µm to 450 µm, with more than 50% by mass of the particles larger than 40 µm. In the cement based on cement clinker, the amount of the mixture used for controlling the set time is 0.01 to 50% by mass of the final cement mixture, where the cements based on cement clinker may contain constituents such as limestone and/or blast furnace slag and/or fly ash and/or silica fumei and/or natural and/or artificial pozzolanic materials and/or burnt shale.

Description

Technical field

Mixture regulating the setting of cement clinker based cement consisting of particulate material of latent hydraulically active substances.

BACKGROUND OF THE INVENTION

It is known that the solidification control, the determination of the onset, is carried out by adding calcium sulfate (CaSO 4 ) in an amount of not more than 5% by weight to the other cement components when grinding the clinker. Without CaSO 4 , mineral (CaO) 3 would be present. Al 2 O 3 , abbreviated to C 3 A, began to hydrate when wetted with water.

The disadvantage of using calcium sulfate as a solidification regulator is that it does not make it possible to reduce the water coefficient of the fresh concrete mixture, to shorten the onset of solidification and to achieve faster growth of the initial strength.

Additives are also known for controlling the onset of solidification, where the calcium sulfate is replaced by another system comprising a sulfonated polyphenolate or lignin sulfonate, an alkali carbonate, a bicarbonate, a hydroxide or a silicate, or other solidification-controlling additives such as sodium potassium tartrate, boric acid (patents). U.S. Pat. No. 3,689,294, U.S. Pat. No. 4,906,912, U.S. Pat. No. 4,551,176).

The use of solidification modifiers is not economically advantageous and often causes a reduction in the initial (4 to 24 hour) strengths of the compositions. In addition, this system has a relatively short onset of solidification or needs to be added in larger quantities. Their overall control effect therefore does not fully replace the use of calcium sulfate, especially in the amount added and the control time.

The aim of the technical solution is to find a control mixture by which gypsum can be substituted / replaced in terms of the amount added to the cement clinker and the time over which it regulates and at the same time allows to reduce the water coefficient of the fresh concrete mixture.

The essence of the technical solution

The technical solution solves this problem by means of a regulating mixture which regulates the onset of cement setting time. The mixture consists of particulate material of latent hydraulically active substances containing on an analytical basis 0.3% to 60% by weight of CaO, 0.5% to 65% by weight

SiO 2 , 3% to 34% Al 2 O 3 , 2% to 19% Fe 2 O 3 , 0.5% to 10% MgO, 0.5% to 36% C, further containing TiO 2 , SO 3 , P 2 O 5 , K 2 O, Na 2 O in an amount of from 0.04% to 11% by weight, wherein the particulate material mixture has a particle size of 1 µm to 450 µm wherein more than 50% by weight of the particles of this mixture is greater than 40 pm. In a cement based clinker cement, the amount of the composition according to the invention regulating the onset of solidification is 0.01 to 50% by weight in the final cementing composition. Cement clinker cements may contain additives such as limestone and / or blast furnace slag and / or fly ash and / or silica drift and / or natural and / or artificial pozzolan and / or calcined slate.

The technical solution is based on systematic experiments in which it was discovered that a mixture consisting of latent hydraulic substances mixed in chemically expressed proportions according to the technical solution and consisting only of particles larger than 40 µm has a surprising effect, ie added to the ground cement clinker the ability to time-control the onset of solidification of the formed mixture. These control properties are so significant that it is not necessary to use the mixture according to the invention in large quantities (10% or more) to control the start of solidification of the cement clinker.

- 1 CZ 18784 Ul

The mixture mixed in chemically expressed proportions according to the invention consisting of particles smaller than 40 µm and added in equal amounts to the ground cement clinker had minimal or even no regulating effects, possibly increasing the initial strengths of the regulator cements according to the invention.

The control mixture according to the invention has no side effects, does not impair any cement properties and fully replaces the solidification regulator calcium sulfate.

The essence of the invention is described in the following examples (without limiting it).

Examples

Example 1

Of latently hydraulically active particulate material sizes of particles 1 pm to 450 pm and 0% by weight: CaO SiO 2 Al 2 O 3 Fe 2 O 3 MgO C TiO 2 SO 3 p 2 o 5 K 2 O Na 2 O 2.1 52.41 29.52 5.6 0.92 4.6 2.1 0.46 0.15 1.74 0.40

a portion of the particulate material was selected to contain 75% of the particles larger than 65 µm.

The thus obtained control mixture in an amount of 5% by weight, based on the weight of the clinker, is admixed with finely ground cement clinker with a specific surface area of 390 m 2 / kg and a slurry of water ratio (water to solid phase ratio) is obtained from the cement obtained. , 29, which begins to solidify after 150 min.

Example 2

Of latent-hydraulically active particulate material with a particle size of 1 µm to 450 µm and a composition by weight:

CaO SiO 2 Al 2 O 3 Fe 2 O 3 MgO C TiO 2 SO 3 P 2 Axis K 2 O Na 2 O

2.1 52.41 29.52 5.6 0.92 4.6 2.1 0.46 0.15 1.74 0.40 A portion of the particulate material was selected to contain 75% of the particles larger than 65 µm.

The thus obtained control mixture in an amount of 3.5% by weight, based on the weight of the clinker, is admixed with a finely ground cement clinker with a specific surface area of 390 m 2 / kg and a slurry of water ratio (water to solid phase ratio) is obtained. = 0.28, which begins to solidify after 130 min.

Example 3

Of latent-hydraulically active particulate material with a particle size of 1 µm to 450 µm and a composition by weight:

CaO SiO 2 Al 2 O 3 Fe 2 O 3 MgO C TiO 2 SO 3 P2O5 K 2 O Na 2 O

2.1 52.41 29.52 5.6 0.92 4.6 2.1 0.46 0.15 1.74 0.40 A portion of the particulate material was selected to contain 75% of the particles larger than 65 µm.

The thus obtained control mixture in an amount of 8% by weight, based on the weight of the clinker, is admixed with finely ground cement clinker with a specific surface area of 390 m 2 / kg and a slurry of water ratio (water to solid phase ratio) is obtained from the cement obtained. , 29, which begins to solidify after 190 min.

-2EN 18784 Ul

Example 4

Of latent-hydraulically active particulate material with a particle size of 1 µm to 450 µm and a composition by weight:

CaO SiO 2 Al 2 O 3 Fe 2 O 3 MgO C TiO 2 SO 3 P 2 O 5 K 2 O Na 2 O

2.1 52.41 29.52 5.6 0.92 4.6 2.1 0.46 0.15 1.74 0.40 A portion of the particulate material was selected to contain 95% of the particles larger than 45 µm.

The thus obtained control mixture in an amount of 5% by weight, based on the weight of the clinker, is admixed with finely ground cement clinker with a specific surface area of 360 m 2 / kg and a slurry of water coefficient (water to solid phase ratio) is obtained from the cement obtained. , 29, which begins to solidify after 140 min.

EXAMPLE 5 From a latent hydraulically active particulate material having a particle size of 1 µm to 450 µm and a composition in weight%:

CaO SiO 2 Al 2 O 3 Fe 2 O 3 MgO C TiO 2 SO 3 P 2 O 5 K 2 O Na 2 O

2.1 52.41 29.52 5.6 0.92 4.6 2.1 0.46 0.15 1.74 0.40 A portion of the particulate material was selected to contain 95% of the particles larger than 45 µm.

The thus obtained control mixture in an amount of 3.5% by weight, based on the weight of the clinker, is admixed with a finely ground cement clinker with a specific surface area of 360 m 2 / kg and a slurry of water ratio (water to solid phase ratio) is obtained. = 0.28, which begins to set after 120 min.

Example 6

Of latent-hydraulically active particulate material with a particle size of 1 µm to 450 µm and a composition by weight:

CaO SiO 2 Al 2 O 3 Fe 2 O 3 MgO C TiO 2 SO 3 P 2 O 5 K 2 O Na 2 O

2.1 52.41 29.52 5.6 0.92 4.6 2.1 0.46 0.15 1.74 0.40 A portion of the particulate material was selected to contain 95% of the particles larger than 45 µm.

The thus obtained control mixture in an amount of 8% by weight, based on the weight of the clinker, is admixed with finely ground cement clinker with a specific surface area of 360 m 2 / kg and a slurry of water ratio (water to solid phase ratio) is obtained from the cement obtained. , 29, which begins to solidify after 170 min.

Example 7

Of latent-hydraulically active particulate material with a particle size of 1 µm to 450 µm and a composition by weight:

CaO SiO 2 Al 2 O 3 Fe 2 O 3 MgO C TiO 2 SO 3 P 2 O 5 K 2 O Na 2 O

14.54 45.15 20.76 6.4 1.45 6.87 2.38 0.98 0.13 0.18 0.53 A portion of the particulate material was selected to contain 85% of the particles larger than 45 µm.

The control mixture thus obtained in an amount of 4.5% by weight, based on the weight of the clinker, is admixed with finely ground cement clinker with a specific surface area of 360 m 2 / kg and from the obtained

A slurry of water coefficient (water to solid phase ratio) w = 0.29 is prepared, which begins to solidify after 150 min.

Example 8

A general example of a cement-based clinker-on-cement control composition consisting of particulate material of latent hydraulic active substances containing on an analytical basis 0.3% to 60% CaO, 0.5% to 65% SiO 2 , 3% to 34% Al 2 O 3 , 2% to 19% Fe 2 O 3 , 0.5% to 10% MgO, 0.5% to 36% C, further containing TiO 2 , SO 3 , P 2 O 5 , K 2 O, Na 2 O in an amount of from 0.04% to 11% by weight, wherein the particulate material has a particle size of 1 µm to 450 µm and more than 50% by weight of the particles is greater than 40 µm. In the cement clinker cement, the amount of the composition controlling the onset of solidification is 0.01 to 50% by weight relative to the final cement compound, wherein the cement clinker cements may contain additives such as limestone and / or blast furnace slag and / or fly ash and / or and / or natural and / or artificial pozzolan and / or calcined slate.

Industrial applicability

The technical solution is particularly useful in the cement industry and in the construction industry.

Claims (6)

  1. PROTECTION REQUIREMENTS
    Cement clinker-setting cement composition comprising: a latent-hydraulically active particulate material having a particle size of 1 µm to 450 µm, wherein more than 50% by weight of the particles of said mixture is greater than 40 µm, wherein the amount used the solidification controlling composition is 0.01 to 50% by weight in the final cementing composition.
  2. Cement-clinker-setting cement-setting composition according to claim 1, characterized in that it contains 0.3% to 60% CaO, 0.5% to 65% SiO 2 , 3% to 34% Al 2 O 3, 2% to 19% by weight Fe 2 O 3, 0.5% to 10% by weight of MgO, 0.5% to 36% by weight of C, wherein the mixture consists of latently hydraulically active particle material with the size of 1 pm to 450 pm, wherein more than 50% by weight of the particles of the mixture are greater than 40 µm and at the same time the amount of the onset controlling mixture used is 0.01 to 50% by weight in the final cementitious mixture.
  3. The cement-clinker-based cement-setting composition according to claims 1 and 2, characterized in that it consists of a latent-hydraulically active particulate material with a particle size of 1 µm to 450 µm, wherein more than 50% by weight of the particles of said mixture are greater than 40 µm. pm, wherein the amount of the solidification controlling mixture used is 0.01 to 50% by weight in the final cementitious mixture preferably containing the components TiO 2 and or SO 3 and or P2O5 and or K 2 O and or Na 2 O in an amount of 0.04% up to 11% by weight.
  4. Cement-clinker-setting cement-setting composition according to claims 1 to 3, characterized in that the amount of the onset of solidification-regulating mixture used is 0.01 to 50% by weight in the final cement-cement mixture, the remaining part of the mixture being cement-clinker-based cements. which may further comprise additives such as, in particular, limestone and / or blast furnace slag and / or fly ash and / or silica fume and / or natural and / or artificial pozzolan and / or calcined slate.
    -4GB 18784 Ul
  5. Cement-clinker-setting cement control composition according to claims 1 to 4, characterized in that it preferably contains at most up to 10% of the composition which regulates the start of solidification with respect to the total weight of the cement mixture.
  6. Cement-clinker-setting cement-control composition according to claims 1 to 5, characterized in that it consists of a particulate material of latent hydraulically active substances having a particle size of 1 µm to 1 mm.
    End of document
    -__
CZ200819593U 2007-12-18 2007-12-18 Mixture - cement setting agent based on cement clinker CZ18784U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CZ2007/000114 WO2009076913A1 (en) 2007-12-18 2007-12-18 Mixture for controlling the set time of cements based on cement clinker, method of control and its use

Publications (1)

Publication Number Publication Date
CZ18784U1 true CZ18784U1 (en) 2008-08-20

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WO (1) WO2009076913A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ2008597A3 (en) * 2008-10-06 2010-04-14 Elmos Trading, Spol. S R.O. Cement setting control method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2250107A (en) * 1939-09-02 1941-07-22 Detroit Edison Co Concrete
DK1370369T3 (en) * 2001-03-02 2008-01-21 James Hardie Int Finance Bv Spröjteapparat
CZ20022504A3 (en) * 2002-07-18 2004-04-14 Karel Ling Setting regulator for all kinds of clinker-based cements
CZ294810B6 (en) * 2002-07-18 2005-03-16 Karel Ling Binding agent based on cement clinker and with controllable start of setting
NO20034964L (en) * 2002-11-08 2004-05-10 Bj Services Co Cement composition suitable for oil and gassbronner

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