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WO2011113694A1 - Béton autocompactant, son procédé de fabrication et utilisation de ce béton autocompactant pour réaliser une couche de béton - Google Patents

Béton autocompactant, son procédé de fabrication et utilisation de ce béton autocompactant pour réaliser une couche de béton Download PDF

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Publication number
WO2011113694A1
WO2011113694A1 PCT/EP2011/053084 EP2011053084W WO2011113694A1 WO 2011113694 A1 WO2011113694 A1 WO 2011113694A1 EP 2011053084 W EP2011053084 W EP 2011053084W WO 2011113694 A1 WO2011113694 A1 WO 2011113694A1
Authority
WO
WIPO (PCT)
Prior art keywords
concrete
mass
cement
proportion
self
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
PCT/EP2011/053084
Other languages
German (de)
English (en)
Inventor
Kay André BODE
Alexander Flohr
Andrea Dimmig-Osburg
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.)
Bauhaus Universitaet Weimar
Original Assignee
Bauhaus Universitaet Weimar
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
Priority claimed from DE201010011713 external-priority patent/DE102010011713B4/de
Priority claimed from DE201010061818 external-priority patent/DE102010061818B3/de
Application filed by Bauhaus Universitaet Weimar filed Critical Bauhaus Universitaet Weimar
Publication of WO2011113694A1 publication Critical patent/WO2011113694A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • C04B28/04—Portland cements
    • 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
    • C04B2103/0027—Standardised cement types
    • C04B2103/004—Standardised cement types according to DIN
    • 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
    • C04B2111/00034—Physico-chemical characteristics of the mixtures
    • C04B2111/00103—Self-compacting mixtures
    • 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
    • C04B2111/72—Repairing or restoring existing buildings or building materials
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Definitions

  • Self-compacting concrete process for its production and use of the self-compacting concrete to produce a concrete layer
  • the invention relates to a self-compacting concrete according to the features of the preamble of claim 1 or 3, a method for producing a self-compacting concrete according to the features of the preamble of claim 5 or 7 and a use of a self-compacting concrete according to the features of the preamble of claim. 9
  • a disadvantage of the previous solutions is that in the renovation / repair of listed concrete surfaces / facades often required original structures can not be produced. The surface does not correspond to a switched concrete surface. In addition, restricted accessibility often prevents professional renovation.
  • the easily compressible or self-compacting concrete has proportions of cement and water, wherein the cement content is more than 400 kg / m 3 and in the processing state, the ratio of the mass of water content to
  • Cement content is less than 0.4.
  • the invention is based on the object to provide an improved self-compacting concrete, which is particularly suitable for creating thin concrete layers, and further to provide a method for producing such a self-compacting concrete and a use of self-compacting concrete.
  • the object is achieved by a self-compacting concrete with the features of claim 1 or 3, a method for producing a self-compacting concrete with the features of claim 5 or 7 and a use of self-compacting concrete with the features of
  • a self-compacting concrete has in a first inventive
  • Embodiment a proportion of at least 300 kg of blast furnace cement per m 3 of concrete, wherein the blast furnace cement has a proportion of 20 percent by mass to 64 percent by weight Portland cement clinker and a share of 36 percent by mass to 80 percent by mass blastfurnace slag.
  • Such blast furnace cement is known from the European standard EN 197 under the short name CEM III.
  • the blast furnace cement has a compressive strength of at least 32.5 N / mm 2 and a maximum of 62.5 N / mm 2 after 28 days. This applies to blast furnace cements CEM III with the standardized cement strength class 32.5 and 42.5.
  • the self-compacting concrete in the first embodiment according to the invention has a content of at least 300 kg of limestone powder per m 3 of concrete. Furthermore, the self-compacting concrete in the first embodiment of the invention has a share of at least 1400 kg of aggregate of sand, gravel or grit per m 3 of concrete, wherein the aggregate has a maximum grain size of 8 mm maximum.
  • a maximum grain size of 8 mm means that a maximum diameter of the stones or grains of the aggregate is 8 mm maximum.
  • the aggregate is preferably porphyry gravel, which has a low elastic modulus.
  • the self-compacting concrete also contains in the first embodiment of the invention, a styrene-acrylate copolymer in a proportion of 5 percent by mass to 15 percent by mass, preferably 5 percent by mass of the blast furnace cement.
  • a copolymer is formed, for example, as a dispersion and has, for example, a solids content of about 50 percent by mass.
  • the self-compacting concrete is polymer modified by the styrene-acrylate copolymer.
  • the self-compacting concrete in the first embodiment according to the invention has a high-performance flow agent based on polycarboxylate ether with a proportion of not more than 2% by mass of the blastfurnace cement, preferably about 4 kg per m 3 of concrete. If necessary, an exact dosage should be adapted in each case by tests in order to ensure optimum flowability of the self-compacting concrete.
  • the self-compacting concrete has water in a water / cement ratio of not more than 0.55.
  • a self-compacting concrete in a second embodiment of the invention has a proportion of at least 300 kg Portlandkompositzement per m 3 concrete, the Portlandkompositzement has as main constituents a share of 65 mass percent to 94 percent by weight Portland cement clinker and a share of 6 percent by mass to 35 percent by mass of at least one Umahlstoffes.
  • the Zumahlstoff or the majority of Zumahlstoffen can / can for example, granulated slag, pozzolan, fly ash and / or limestone.
  • Such a Portland composite cement is known from the European standard EN 197 under the short name CEM II.
  • the Portland composite cement has a compressive strength of at least 32.5 N / mm 2 and maximum after 28 days
  • the self-compacting concrete in the second embodiment according to the invention has a content of at least 300 kg of limestone powder per m 3 of concrete.
  • the self-compacting concrete in the second embodiment of the invention a proportion of at least 1400 kg of aggregate of sand, gravel or grit per m 3 of concrete, wherein the aggregate has a maximum grain size of 8 mm maximum.
  • a maximum grain size of 8 mm means that a maximum diameter of the stones or grains of the aggregate is 8 mm maximum.
  • the aggregate is preferably porphyry gravel, which has a low elastic modulus.
  • the self-compacting concrete also contains in the second invention
  • the self-compacting concrete is polymer modified by the styrene-acrylate copolymer.
  • the self-compacting concrete in the second embodiment of the present invention has a high-performance flow agent based on
  • the self-compacting concrete also has water in a water / cement ratio of 0.55 maximum in the second embodiment of the invention.
  • the values of the above formulation of the first and second embodiments of the self-compacting concrete according to the invention relate to the concrete during mixing or immediately after mixing and before applying the self-compacting concrete to a surface to be coated. After application to the surface to be coated hardens and dries the concrete, so that in particular changes the water-cement ratio.
  • This polymer-modified self-compacting concrete is particularly suitable for creating thin concrete layers in the context of renovation and repair tasks, especially on vertical surfaces.
  • shuttering structures similar to an original surface can also be designed visibly on redeveloped surfaces.
  • Concrete layer of this polymer-modified self-compacting concrete is also usable as a concrete repair layer with a final surface.
  • the polymer-modified self-compacting concrete has due to its
  • the composition has a high fatigue strength, as a result of which a future refurbishment effort of a surface renovated with the polymer-modified self-compacting concrete is markedly reduced and a much longer period of time until a renewed necessary refurbishment can be achieved.
  • the self-compacting concrete expediently comprises a proportion of at least 340 kg blast-furnace cement per m 3 of concrete, the blast-furnace cement having a proportion of 20 mass% to 34 mass% Portland cement clinker and a proportion of 66 mass% to 80 mass% blastfurnace slag of at least 300 kg of limestone powder per m 3 of concrete, a minimum of 1400 kg of aggregate of sand, gravel or grit per m 3 of concrete, the aggregate having a maximum grain size of not more than 8 mm, a styrene-acrylate copolymer containing 5% Percent by mass to 15% by mass of
  • Blast-furnace cements a high-performance flow agent based on polycarboxylate ethers with a maximum proportion of 2% by mass of blast-furnace cement and water in a water / cement ratio of not more than 0.5.
  • the polymer-modified self-compacting concrete Preferably, the polymer-modified self-compacting concrete
  • the polymer-modified self-compacting concrete has a very good colorability with color pigments, so that the polymer-modified self-compacting concrete is very well color-matched to specific requirements. Even when using the Portland composite CEM II in the second embodiment of the self-compacting concrete according to the invention, depending on the other main constituents used in addition to the Portland cement clinker, ie the one or more additives, a good
  • a proportion of at least 300 kg of blast furnace cement per m 3 of concrete wherein the blast furnace cement has a proportion of 20 percent by mass to 64 percent by weight Portland cement clinker and a share of 36 percent by mass of blastfurnace slag, a proportion of at least 300 kg of limestone powder per m 3 of concrete, a proportion of at least 1400 kg of aggregate of sand, gravel or grit per m 3 of concrete, the aggregate having a maximum grain size of not more than 8 mm, a styrene-acrylate copolymer with one portion from 5% by mass to 15% by mass, preferably 5% by mass, of the blastfurnace cement, a high-performance flow agent based on polycarboxylate ether with a proportion of not more than 2% by mass of
  • Blast furnace cement preferably about 4 kg per m 3 of concrete, and water in one
  • the blastfurnace cement is known from the European standard EN 197 under the short name CEM III.
  • the blast furnace cement has a compressive strength of at least 32.5 N / mm 2 and a maximum of 62.5 N / mm 2 after 28 days. This applies to blast furnace cements CEM III with the standardized cement strength class 32.5 and 42.5.
  • a proportion of at least 300 kg Portlandkompositzement per m 3 concrete wherein the Portlandkompositzement as main constituents a share of 65 percent by mass to 94 percent by weight Portland cement clinker and a share of 6 percent by mass to 35 percent by mass at least one Umahlstoffes, a share of at least 300 kg of limestone powder per m 3 of concrete, a share of at least 1400 kg of aggregate of sand, gravel or grit per m 3 of concrete, wherein the aggregate has a maximum grain size of 8 mm, a styrene acrylate Copolymer with a proportion of 5% by mass to 15% by mass, preferably 5% by mass, of the Portland composite cement, a high performance flow agent based on polycarboxylate ether with a proportion of not more than 2% by mass of Portlandkompositzements, preferably about 4 kg per m 3 of concrete, and water in a water
  • the Portland composite cement is known from European standard EN 197 under the abbreviation CEM II.
  • the Portland composite cement has a compressive strength of at least 32.5 N / mm 2 and maximum after 28 days
  • blastfurnace slag, pozzolan, fly ash and / or limestone can be used as the grinding material, it being possible to use a grinding substance or a plurality of different grinding agents.
  • the aggregate used is preferably porphyry gravel, which has a low modulus of elasticity.
  • a maximum grain size of 8 mm means that a maximum diameter of the stones or grains of the aggregate is 8 mm maximum.
  • a styrene-acrylate copolymer formed as a dispersion for example with a solids content of about 50% by mass.
  • the self-compacting concrete is polymer modified by the styrene-acrylate copolymer.
  • an exact metering of the high-performance flow agent may optionally be adapted in each case by tests in order to ensure optimum flowability of the self-compacting concrete.
  • This polymer-modified self-compacting concrete which is preferably mixed in a compulsory mixer in both embodiments of the method according to the invention, is particularly suitable for creating thin concrete layers in the context of renovation and repair tasks, in particular on vertical surfaces.
  • This polymer-modified self-compacting concrete formwork structures similar to an original surface can also be made visible on redeveloped surfaces.
  • a concrete layer of this polymer-modified self-compacting concrete may also be used as a concrete repair layer with a final surface.
  • the polymer modification By the polymer modification, a better stability of the formulation of the self-compacting concrete is achieved and adhesion of the self-compacting concrete to the surface to be repaired is significantly improved over prior art materials.
  • the polymer-modified self-compacting concrete has due to its
  • the composition has a high fatigue strength, as a result of which a future refurbishment effort of a surface renovated with the polymer-modified self-compacting concrete is markedly reduced and a much longer period of time until a renewed necessary refurbishment can be achieved.
  • a proportion of at least 340 kg of blast-furnace cement per m 3 of concrete the blast furnace cement having a proportion of 20 percent by mass to 34 percent by weight Portland cement clinker and a share of 66 percent by mass of blastfurnace slag , a proportion of at least 300 kg limestone dust per m 3 of concrete, a portion of at least 1,400 kg of rock grains of sand, gravel or crushed material per m 3 of concrete, the aggregate having a maximum particle size of at most 8 mm, a styrene-acrylate copolymer having a Share of 5 percent by mass
  • color pigments are added and mixed.
  • a respective desired color of the polymer-modified self-compacting concrete can be produced. Due to a very light concrete base color due to the blast furnace cement CEM III used in the first embodiment of the invention, the polymer-modified self-compacting concrete has a very good colorability with color pigments, so that the polymer-modified self-compacting concrete can be very well color matched to respective requirements. Even when using the Portland composite CEM II in the second embodiment of the method according to the invention, the self-compacting concrete depending on the next Portland cement clinker used other major constituents, ie the one or more Zumahlstoffen be well dyed.
  • the self-compacting concrete preferably produced by means of the method, is preferably used for producing a concrete layer, wherein the self-compacting concrete is applied to a surface of a component to be coated.
  • a formwork is arranged at a predetermined distance from the surface to be coated of the component and the polymer-modified self-compacting concrete is applied by filling in a cavity between the formwork and the surface to be coated of the component on the surface to be coated of the component.
  • the formwork is preferably arranged at a predetermined distance of at least 2.5 cm to the surface of the component to be coated and has a smooth surface or, in a particularly advantageous embodiment, a structured surface.
  • a formwork material depends on a respective desired surface structure of the concrete surface of the polymer-modified self-compacting concrete and is for example plastic, metal or more preferably wood, as in this way also a grain of the wood on the concrete surface of the polymer-modified self-compacting concrete, d. H. can be made visible on the renovated surface as a relief in the polymer-modified self-compacting concrete.
  • the polymer-modified self-compacting concrete formwork structures similar to an original surface can also be made visible on redeveloped surfaces.
  • the polymer-modified self-compacting concrete is filled between the formwork and the surface to be coated, it leveled due to its rheological properties automatically and vented so that no additional compression energy is involved.
  • the distance between the formwork and the surface to be coated may be constant over a longitudinal extent and / or over a transverse extent of the surface to be coated, or different distances may occur. However, a minimum distance of 2.5 cm must be maintained everywhere.
  • the polymer-modified self-compacting concrete is particularly advantageously used on a surface to be coated of the component, which is oriented substantially vertically. However, it can also be used on differently oriented surfaces, for example on horizontally oriented surfaces.
  • Figure 1 is a schematic sectional view of a to be coated
  • FIG. 2 shows a schematic representation of a concrete surface of a surface coated with a polymer-modified self-compacting concrete.
  • Figure 1 shows a schematic sectional view of a to be coated
  • the component 2 is for example a vertical house wall to be rehabilitated, on which the thin concrete layer 4 is to be applied.
  • Blast furnace cement a share of 20 percent by mass to 64 percent by mass
  • High-performance flow agent based on polycarboxylate with a proportion of not more than 2 percent by mass of blast furnace cement, preferably about 4 kg per m 3 of concrete, and water mixed in a water / cement ratio of not more than 0.55.
  • the blast furnace cement is from the European standard EN 197 under the
  • Short name CEM III known.
  • the blast furnace cement has a compressive strength of at least 32.5 N / mm 2 and a maximum of 62.5 N / mm 2 after 28 days. This applies to blast furnace cements CEM III with the standardized cement strength class 32.5 and 42.5.
  • Styrene-acrylate copolymer in a proportion of 5% by mass
  • the Portland composite cement is known from European standard EN 197 under the abbreviation CEM II.
  • the Portland composite cement has a compressive strength of at least 32.5 N / mm 2 and maximum after 28 days
  • the admixture or the plurality of additives may be, for example, granulated blastfurnace, pozzolan, fly ash and / or limestone.
  • the mixing is particularly preferably carried out in a compulsory mixer or in exceptional cases, for example, in a free-fall mixer.
  • the blast furnace comprehensive formulation can also share at least 340 kg blast furnace cement per m 3 concrete, the blast furnace cement has a share of 20 percent to 34 percent by weight Portland cement clinker and a share of 66 percent to 80 percent by mass blastfurnace slag, a share of at least 300 kg of limestone powder per m 3 of concrete, a minimum of 1400 kg of aggregate of sand, gravel or grit per m 3 of concrete, the aggregate having a maximum grain size of not more than 8 mm, a styrene-acrylate copolymer containing 5% Mass percent to 15 percent by mass of the mass of blast furnace cement, a high-performance flow agent based on polycarboxylate with a proportion of not more than 2 percent by mass of the mass of blast furnace cement and water in a water / cement ratio of 0.5 or less.
  • the aggregate is preferably porphyry gravel, which has a low
  • a largest grain of 8 mm means that a maximum The diameter of the stones or grains of aggregate is 8 mm maximum.
  • the styrene-acrylate copolymer is formed, for example, as a dispersion and has, for example, a solids content of about 50% by mass.
  • This styrenic acrylate copolymer is the self-compacting concrete
  • the polymer-modified self-compacting concrete has due to its
  • the composition has a high fatigue strength, as a result of which a future refurbishment effort of a surface renovated with the polymer-modified self-compacting concrete is markedly reduced and a much longer period of time until a renewed necessary refurbishment can be achieved.
  • Color pigments are admixed to a respective desired color of the polymer-modified self-compacting concrete or on the zu
  • the shuttering 3 is arranged at a predetermined distance of at least 2.5 cm from the surface 1 of the component 2 to be coated.
  • the distance between the formwork 3 and the surface 1 to be coated can be constant over a longitudinal extent and / or over a transverse extent of the surface 1 to be coated, or different distances can occur. However, a minimum distance of 2.5 cm must be maintained everywhere.
  • the formwork 3 is made of plastic, metal or wood, for example, and has a structured surface 5 in the example shown here.
  • a grain of the wood can already be used as a structured surface 5. In this way, the grain of the wood on a concrete surface 6 of the concrete layer 4 of polymer-modified
  • self-compacting concrete d. H. be made visible on the redeveloped surface as a surface structure 7 in polymer-modified self-compacting concrete, as shown in more detail in Figure 2.
  • polymer-modified self-compacting concrete formwork structures similar to an original surface can also be made visible on redeveloped surfaces.
  • the polymer-modified self-compacting concrete is applied by filling in a cavity between the formwork 3 and the surface to be coated 1 of the component 2 on the surface 1 to be coated. Due to its rheological properties, it leveled automatically and vented, so that no additional compaction energy is required.
  • the polymer-modified self-compacting concrete is, as shown here, particularly advantageous on a surface 1 to be coated of the component 2 can be used, which is oriented substantially vertically. However, it can also be used on differently oriented surfaces, for example on horizontally oriented surfaces.
  • FIG. 2 schematically illustrates the concrete surface 6 of the surface 1 coated with polymer-modified self-compacting concrete, and has a surface 5 corresponding to the structured surface 3 of the formwork 3

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

Abstract

L'invention concerne un béton autocompactant, comprenant selon l'invention du ciment de haut fourneau ou du ciment Portland composé, ainsi que de la poudre calcaire, un granulat, un copolymère de styrène-acrylate, un fluidifiant à haute performance et de l'eau dans une composition prédéfinie. L'invention concerne en outre un procédé de fabrication de ce béton autocompactant et l'utilisation dudit béton autocompactant pour réaliser une couche de béton (4).
PCT/EP2011/053084 2010-03-17 2011-03-02 Béton autocompactant, son procédé de fabrication et utilisation de ce béton autocompactant pour réaliser une couche de béton Ceased WO2011113694A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE201010011713 DE102010011713B4 (de) 2010-03-17 2010-03-17 Selbstverdichtender Beton, Verfahren zu dessen Herstellung und dessen Verwendung
DE102010011713.7 2010-03-17
DE201010061818 DE102010061818B3 (de) 2010-11-23 2010-11-23 Selbstverdichtende Betone, Verfahren zu deren Herstellung und Verwendung der selbstverdichtenden Betone zur Herstellung einer Betonschicht
DE102010061818.7 2010-11-23

Publications (1)

Publication Number Publication Date
WO2011113694A1 true WO2011113694A1 (fr) 2011-09-22

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PCT/EP2011/053084 Ceased WO2011113694A1 (fr) 2010-03-17 2011-03-02 Béton autocompactant, son procédé de fabrication et utilisation de ce béton autocompactant pour réaliser une couche de béton

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Publication number Priority date Publication date Assignee Title
CN108059412A (zh) * 2018-01-24 2018-05-22 长安大学 一种彩色混凝土及其制备方法
CN109320163A (zh) * 2018-10-30 2019-02-12 中建西部建设西南有限公司 一种c30低胶材自密实混凝土及其制备方法

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EP1958926A1 (fr) * 2007-01-24 2008-08-20 Lafarge Nouvelle composition de béton
DE102007063455A1 (de) 2007-12-27 2009-07-02 Institut für Fertigteiltechnik und Fertigbau Weimar e.V. Beton und Bahnschwelle aus Beton
EP2140992A2 (fr) * 2008-07-04 2010-01-06 Prometheus Projektgesellschaft für rationelles 3D formen mbH Fabrication d'éléments structurels, notamment d'éléments de mur ou de façade
DE102008037171A1 (de) 2008-08-06 2010-02-11 Institut für Fertigteiltechnik und Fertigbau Weimar e.V. Beton und Bahnschwelle aus Beton

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108059412A (zh) * 2018-01-24 2018-05-22 长安大学 一种彩色混凝土及其制备方法
CN109320163A (zh) * 2018-10-30 2019-02-12 中建西部建设西南有限公司 一种c30低胶材自密实混凝土及其制备方法

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