EP3619178A1 - Betonelement mit bewehrung mit verbessertem oxidationsschutz - Google Patents

Betonelement mit bewehrung mit verbessertem oxidationsschutz

Info

Publication number
EP3619178A1
EP3619178A1 EP18723452.1A EP18723452A EP3619178A1 EP 3619178 A1 EP3619178 A1 EP 3619178A1 EP 18723452 A EP18723452 A EP 18723452A EP 3619178 A1 EP3619178 A1 EP 3619178A1
Authority
EP
European Patent Office
Prior art keywords
fibers
concrete
oxidation
textile reinforcement
resin
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.)
Withdrawn
Application number
EP18723452.1A
Other languages
German (de)
English (en)
French (fr)
Inventor
Marcus Hinzen
Georgios Toskas
Andreas Tulke
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.)
Solidian GmbH
Original Assignee
Solidian GmbH
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 Solidian GmbH filed Critical Solidian GmbH
Publication of EP3619178A1 publication Critical patent/EP3619178A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00—Use 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
    • C04B20/10—Coating or impregnating
    • C04B20/1051—Organo-metallic compounds; Organo-silicon compounds, e.g. bentone
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/38—Fibrous materials; Whiskers
    • C04B14/386—Carbon
    • 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
    • C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B16/04—Macromolecular compounds
    • C04B16/06—Macromolecular compounds fibrous
    • C04B16/0616—Macromolecular compounds fibrous from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B16/0625—Polyalkenes, e.g. polyethylene
    • C04B16/0633—Polypropylene
    • 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
    • C04B20/00—Use 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
    • C04B20/10—Coating or impregnating
    • C04B20/12—Multiple coating or impregnating
    • 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
    • C04B28/006—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 mineral polymers, e.g. geopolymers of the Davidovits type
    • 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
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/60—Agents for protection against chemical, physical or biological attack
    • C04B2103/608—Anti-oxidants
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding

Definitions

  • the invention relates to approaches to improve the oxidation protection of high-performance fibers, in particular carbon fibers, which are used as reinforcement in concrete and must have the required fire resistance in the component.
  • the invention relates to a thin concrete element having a specific concrete composition in combination with a carbon fiber reinforcement with a special high-temperature impregnating impregnating agent, whereby a very good behavior of the concrete element in case of fire is achieved.
  • Carbon fibers can be embedded in the concrete as fabric, scrim, single rod or single rod welded to mats. They consist essentially of carbon in nature, which due to its structure allows the fibers special mechanical properties, in particular a high strength and a high modulus of elasticity.
  • the fibers are usually soaked with a drenching compound in order to achieve the most uniform possible activation (participation in the load transfer) of all filaments. As a result, the tensile strength of such a composite reinforcement of the Filamentzugfesttechnik can be clearly approximated.
  • thermosetting resin systems preferably epoxy resins, or aqueous dispersions, preferably styrene-butadienes used.
  • the hardened textile reinforcements are arranged analogously to the reinforced concrete construction method in the concrete and produce the connection to the concrete via positive locking or a proportional adhesive bond. Textile reinforcements are not susceptible to chloride-induced corrosion and, unlike reinforcing steel, therefore require no concrete cover. This allows particularly slim concrete structures with a long service life.
  • the fire resistance of a component has decisive importance.
  • the duration of a component's functioning is
  • a standard requirement for buildings subject to fire hazard is the fire resistance class "F90 fire-resistant" (for at least 90 minutes in case of fire)
  • F90 fire-resistant for at least 90 minutes in case of fire
  • protection over 90 minutes is achieved, above all, by a sufficiently large concrete cover.
  • the insufficient high temperature behavior is due to two factors.
  • the causes for this are, on the one hand, the currently used purely organic impregnation masses. These are known to soften above their glass transition temperature, which is below 100 ° C degrees for most polymers, and evaporate completely in the temperature range up to 400 ° C. The described strength-increasing effect of the impregnation mass is therefore lost in a fire within a few minutes.
  • the high-performance fiber must be protected for at least 60 minutes, ideally 90 minutes before oxidation, thus preventing or delaying the access of oxygen
  • the impregnating mass used must retain sufficient residual rigidity and strength in the event of fire in order to ensure the internal bond (filament / filament) and outer bond (fiber / concrete)
  • the concrete cover of a component must be fire-resistant and must not flake off in the event of fire, as it is intended to contribute both as a proportionate heat buffer and, above all, as the first oxygen barrier
  • the fire-resistant composite reinforcement must reach a sufficient tensile strength of at least 3000 MPa at normal temperature
  • the substances After being applied to the fiber surface, the substances, which in their original form can not yet achieve a protective effect, must be converted by a conversion process into a dense and stable layer. This can e.g. be achieved by glazing. In general, under protective gas conditions or in a vacuum, temperatures of more than 1200 ° C. are generated, in which the converted materials are converted into a vitreous, dense layer.
  • polymer-based ceramic is the commercially available Polyracene® resin which is cured in a rapid radical crosslinking mechanism at 125-150 ° C. Subsequently, the resin is further treated in a pyrolysis process to 1400 ° C.
  • CMC Ceramic Matrix Composites
  • Corresponding materials have a sufficient temperature stability to allow a fire reaction of more than 90 minutes. case to resist.
  • the tensile strengths of such materials are relatively low.
  • the use of classical CMCs makes no sense for the reinforcement of concrete.
  • the use of ceramic fiber, which as such are also sufficiently temperature-stable, in combination with less expensive processable resin systems also not useful.
  • the methods of applying protective layers to fibers may be derived from the manufacturing processes of ceramic matrix composites (CMC).
  • CMC ceramic matrix composites
  • Important processes for producing ceramic composite materials, some of which can be operated with very different process parameters, are the following:
  • LPI low-density polystyrene
  • CVI CVI
  • LSI sol-gel process
  • FIG. 1 To FIG. 1:
  • the LPI process is very often used for the production of CMCs with a SiC matrix; depending on the precursor (preceramic polymer), matrix compositions of N, O, B, Al and Ti can also be prepared.
  • Prepreg C or SiC fibers + Si polymer + ceramic filler
  • shape and fix with vacuum bag -> harden in autoclave -> reaction creates a porous matrix -> demoulding and green processing -> pyrolysis 800-1300 ° C ⁇ -> (5-10 times) infiltration with precursor
  • FIG. 2 To FIG. 2:
  • the figure shows a CMC bolt and nut made in the CWI process (Techtrans.de)
  • the LSI process is the only process that has long been used in the series production of eg brake discs.
  • Fiber preform is soaked in sol (colloidal suspension of fine ceramic particles)) - ⁇ insert in mold / form / wrap (Whipox) / laminate- ⁇ heat preform: (sol becomes gel) subsequent drying at 400 C-repeat of Infiltration and drying process to the desired density ⁇ mix fire matrix
  • Main protective layer pure carbon matrix, salt impregnation, Sl (P75, P76, P77), CVI mullite layers, other additives
  • Nanoscale multilayers (PyC, SiC, BN, B 4 C)
  • the previously described processes are complex in terms of apparatus, run slowly, require a lot of time and high temperatures. Thus, they are not suitable for the treatment of carbon fibers for construction applications in the currently known and used form.
  • Impregnation masses for concrete reinforcements are usually of an organic nature, so that they have the required elongation at break for composites.
  • the carbon fiber manufacturers have developed correspondingly sized sizes.
  • Non-flammable impregnation masses or impregnation masses with the highest possible residual masses at 1000 degrees C. are naturally inorganic. They therefore have a low elongation at break and a brittle material behavior. This means that inorganic impregnating compounds or binders can form cracks or microcracks during the stress of the component, which promote the access of oxygen. Reinforcements with purely inorganic impregnation masses therefore show insufficient performance, not least because of the poor fiber / matrix adhesion.
  • the present invention provides a three-stage solution concept: 1. Protection of the composite reinforcement by the concrete cover, in particular a particularly resistant concrete cover
  • Fire-resistant alkali-resistant and dimensionally stable impregnating mass for maintaining the internal composite in case of fire, in particular fire-resistant and dimensionally stable impregnating resin.
  • the concrete cover with a thickness of usually 10 mm to 20 mm can form the first protective function in case of fire. In certain applications, however, concrete coverings of up to 25 mm or even up to 30 mm can be used. It can prevent a direct flame of the carbon reinforcement and the temperature applied to the reinforcement in the thickness range mentioned about 100 ° C. to reduce. Likewise, it can form the first barrier layer for inflowing oxygen.
  • the concrete cover must not chip off the component during exposure to fire. While in conventional reinforced concrete, which also achieves the required fire resistance class only when the concrete cover is intact, 2 kg / m 3 concrete is added to polypropylene fibers to prevent spalling, this is not sufficient after initial investigations in textile concretes due to the denser pore structure. However, it has been shown that the following concrete technological measures can prevent spalling even with textile concrete, in particular in certain combinations of high-strength and very dense mortars for textile concrete:
  • a significantly higher dosage of polypropylene fibers of at least 3 kg / m 3 , preferably 4 kg / m 3 .
  • a higher dosage of polypropylene fibers of at least 2 kg / m 3 , preferably 3-4 kg / m 3 .
  • Organopolysiloxanes especially silicone resins, such as in particular the group of methyl resins and methylphenyl resins, such.
  • silicone resins such as in particular the group of methyl resins and methylphenyl resins, such.
  • basic alkali resistance is not expected for organosilicon compounds, it has surprisingly been found to be useful in some formulations (e.g., Wacker Silres H62C and in combination with Silres MK) for the differential use of concrete reinforcement.
  • Methyl-phenyl-vinyl-hydrogen-polysiloxanes e.g., Wacker Silres H62C
  • methyl-polysiloxanes e.g., Wacker Silres MK
  • particularly suitable mixtures of these two siloxanes have been found to exhibit surprisingly high alkali resistance in the field of concrete reinforcement.
  • Inorganic impregnating compositions having an organic content in particular predominantly inorganic impregnating compositions which also have an organic content, however, despite a significantly better high-temperature resistance, still tend to form a porous structure or micro-cracks in the high-temperature range between 500 ° C. and 1000 ° C.
  • predominantly inorganic impregnating masses which also have an organic fraction tend, despite significantly better Temperature resistance continues to form a porous structure or microcracks in the temperature range between 500 ° C and 1000 ° C. Therefore, a high proportion of high-temperature stable fillers, for example in the form of particles, can advantageously be added to these resins in order to reduce shrinkage-induced microcracking at high temperature.
  • some shrinkage is needed for mechanical adhesion of the resin to the fibers for high temperature power transmission.
  • the fillers usually occupy spaces which are then no longer available for the transport of oxygen, whereby an oxidation protection is achieved.
  • fillers in the nanoscale range can advantageously be used in the production of reinforcing gratings.
  • a screening of the particles is avoided by the fiber strand and consequently achieves a relatively uniform distribution of the fillers.
  • the fillers can be predispersed in solvent or resin components.
  • solvents that are required anyway for the film formation of solid resins can be enriched in advance with high levels of fillers.
  • liquid resins can be enriched directly with fillers or additional solid resins are dissolved in the correspondingly modified liquid resins. As a result, use of a solvent can be completely or at least almost completely avoided.
  • solid concentrations of 75% of a solid resin in the solvent and a simultaneous filler content of 50% in the solvent are conceivable.
  • a filler content of at least 12.5% are used.
  • smaller filler contents of at least 5% or at least 10% may be sufficient.
  • dispersing aids such as POSS® (Polyhedral Oligomeric Silsesquioxane) can be used.
  • the methyl solid resin Wacker Silres MK in combination with SiO 2 nanoparticles in solvents or Al 2 O 3 particles and the methyl resin oligomer Wacker Trasil have proven particularly advantageous.
  • the phenyl-methyl resin Wacker Silres H44 is particularly advantageous.
  • the combination of different resin systems can also lead to a combination of properties.
  • the proportion of solid resins in solvent and / or the filler content can be chosen as large as possible.
  • Conceivably e.g. Filler contents of up to 50% in a silicon-organic resin.
  • dispersing aids such as e.g. POSS® (Polyhedral Oligomeric Silsesquioxane) can be used.
  • preceramic networks which usually form below 1000 ° C.
  • the combination of epoxy and phenolsiloxanes is considered to be particularly advantageous since, as expected, the epoxy component provides better bonds and the phenol component effects a better temperature resistance.
  • the prevention of the oxidation of carbon fibers in the composite component is considered.
  • the access of oxygen or oxygen-containing compounds (to the carbon fibers) can be completely avoided or at least sustainably reduced by suitable barriers, at least for a certain time. As listed below, such barriers can be created at different locations.
  • a barrier can be created directly on the surface of the carbon fibers, prior to the application of a sizing typically applied to carbon fibers to ensure processability.
  • an oxidation barrier can also be effected by a suitably modified sizing that is applied to the still uncoated carbon fiber.
  • an oxidation barrier can be produced by the aftertreatment of a carbon fiber roving already provided with a size.
  • oxidation protection can be achieved by modifying the resin system used to impregnate the roving. Here the protection would then take place via the resin, which layered roving is applied.
  • analogously to point 2 there is the idea in particular to introduce the oxidation protection instead of a solvent into a liquid resin, which is then mixed with a solid resin and applied to the roving or to introduce the oxidation protection additive directly into a liquid resin and applied to the roving.
  • an oxidation protection system can also be applied externally to the roving already coated with a resin.
  • This barrier-active outer protective skin can be made of a high temperature resistant, low shrinkage and low diffusion system, e.g. preferably consisting of aluminum phosphate salts and / or aluminum phosphate silicate and / or alumina and / or silicon
  • An oxidation barrier can be made by a suitably modified sizing which is applied to the still uncoated carbon fiber.
  • the modification may include phosphorus additives or similar additives.
  • a combination of the o.g. Variants are considered to be particularly effective.
  • the relevant oxidation barriers may i.a. the following material concepts are achieved:
  • Nanosilica is u.a. from the Fa.
  • Evonik offered and as nanoscale, spherical filler u.a. used for the tire industry. These can also form a temperature-stable oxidation barrier as a pure layer or as an additive. In the literature (Evonik) a reduction of water or gas transport by up to 60% at 50% particle content is reported.
  • Another possibility is to remove the carbon fibers in the manufacturing process, e.g. Activate less strongly electrochemically before the sizing application, so that an attack of oxygen is difficult.
  • oxygen scavengers / antioxidants can also be used.
  • Antioxidants are used as additives in the plastics and chemical fiber industry to retard thermo-oxidative degradation processes. These are usually additives that, for example, act as a radical scavenger on the plastic and bind chemical radicals that form through a chemical reaction. Such antioxidants can be used as an additive, for example in the impregnating resin or in the size. The antioxidants bind oxygen, which could already get into the layer with the antioxidants (eg by overcoming upstream protective barriers) to bind and thus keep away from the carbon fiber. In combination with the solutions described above, the use of antioxidants can be protected from oxidation for even longer. The antioxidants are preferably elements that are aufoxidierbar after sufficient temperature entry, thus oxygen bind and keep away from the carbon fiber. In combination with the solutions described above, the use of antioxidants can protect the carbon fiber from oxidation for even longer.
  • fire resistance class F90 fire resistance class F90

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Nanotechnology (AREA)
  • Civil Engineering (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Reinforced Plastic Materials (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
EP18723452.1A 2017-05-03 2018-05-03 Betonelement mit bewehrung mit verbessertem oxidationsschutz Withdrawn EP3619178A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017109476 2017-05-03
PCT/EP2018/061370 WO2018202785A1 (de) 2017-05-03 2018-05-03 Betonelement mit bewehrung mit verbessertem oxidationsschutz

Publications (1)

Publication Number Publication Date
EP3619178A1 true EP3619178A1 (de) 2020-03-11

Family

ID=62143134

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18723452.1A Withdrawn EP3619178A1 (de) 2017-05-03 2018-05-03 Betonelement mit bewehrung mit verbessertem oxidationsschutz

Country Status (5)

Country Link
US (1) US20200055776A1 (ru)
EP (1) EP3619178A1 (ru)
CA (1) CA3059281A1 (ru)
RU (1) RU2019138720A (ru)
WO (1) WO2018202785A1 (ru)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109776000A (zh) * 2019-04-02 2019-05-21 四川聚创石墨烯科技有限公司 花生壳石墨烯水泥基复合浆料、复合材料的制备方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109678436A (zh) * 2019-01-01 2019-04-26 中国人民解放军63653部队 一种耐高温低烧损自流平混凝土浇筑料
WO2021165391A1 (de) 2020-02-19 2021-08-26 Teijin Carbon Europe Gmbh Bewehrung aufweisend kohlenstofffasern
CN111606616A (zh) * 2020-05-20 2020-09-01 中铁二局第二工程有限公司 一种填充式植物纤维、制备方法以及高强可塑吸波混凝土
CN114311275B (zh) * 2021-12-20 2024-08-06 陕西建工新能源有限公司 一种新型防腐混凝土预应力管桩生产工艺

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4818595A (en) * 1984-04-25 1989-04-04 Delphic Research Laboratories, Inc. Fire barrier coating and fire barrier plywood
JPH05286747A (ja) * 1992-04-08 1993-11-02 Dainippon Ink & Chem Inc セメントモルタル成形品の製造法
US20060230985A1 (en) * 2005-04-18 2006-10-19 James Derrigan Insulated composite reinforcement material
KR20100104856A (ko) * 2009-03-19 2010-09-29 유암이엔씨(주) 난연성 방염원단패널, 이의 제조방법 및 이를 이용한 콘크리트구조물 보강공법
WO2016082949A1 (en) * 2014-11-27 2016-06-02 Construction Research & Technology Gmbh Surface-modified polyolefin fibers
US20160214894A1 (en) * 2013-08-29 2016-07-28 Dow Corning Corporation Coated Fibre And Concrete Composition Comprising The Same

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991013830A1 (fr) * 1990-03-07 1991-09-19 Joseph Davidovits Procede d'obtention d'un geopolymere alumino-silicate et produits realises par ce procede
US5925449A (en) * 1996-12-26 1999-07-20 Davidovits; Joseph Method for bonding fiber reinforcement on concrete and steel structures and resultant products
FR2804952B1 (fr) * 2000-02-11 2002-07-26 Rhodia Chimie Sa Composition de beton ultra haute performance resistant au feu
US20050031843A1 (en) * 2000-09-20 2005-02-10 Robinson John W. Multi-layer fire barrier systems
US7311964B2 (en) * 2002-07-30 2007-12-25 Saint-Gobain Technical Fabrics Canada, Ltd. Inorganic matrix-fabric system and method
AU2005203426A1 (en) * 2005-08-03 2007-02-22 Bakharev, Tatiana Dr Fire resistant coating
US9353006B2 (en) * 2012-12-21 2016-05-31 Empa Eidgenossische Materialprufungs- Und Forschungsanstalt Fire resistant concrete
KR101737554B1 (ko) * 2016-10-06 2017-05-19 한국세라믹기술원 콘크리트 구조물용 난연/준불연 내진 보강 섬유복합체 및 이를 이용한 콘크리트 보강공법

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4818595A (en) * 1984-04-25 1989-04-04 Delphic Research Laboratories, Inc. Fire barrier coating and fire barrier plywood
JPH05286747A (ja) * 1992-04-08 1993-11-02 Dainippon Ink & Chem Inc セメントモルタル成形品の製造法
US20060230985A1 (en) * 2005-04-18 2006-10-19 James Derrigan Insulated composite reinforcement material
KR20100104856A (ko) * 2009-03-19 2010-09-29 유암이엔씨(주) 난연성 방염원단패널, 이의 제조방법 및 이를 이용한 콘크리트구조물 보강공법
US20160214894A1 (en) * 2013-08-29 2016-07-28 Dow Corning Corporation Coated Fibre And Concrete Composition Comprising The Same
WO2016082949A1 (en) * 2014-11-27 2016-06-02 Construction Research & Technology Gmbh Surface-modified polyolefin fibers

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
RITTER ET AL.: "Ergebnisbericht Vorhaben B1 Beschichtungen und Bewehrungsstrukturen für den Carbonbetonbau", C3, 1 January 2016 (2016-01-01), XP055964822, Retrieved from the Internet <URL:www.bauen-neu-denken.de> [retrieved on 20220926] *
See also references of WO2018202785A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109776000A (zh) * 2019-04-02 2019-05-21 四川聚创石墨烯科技有限公司 花生壳石墨烯水泥基复合浆料、复合材料的制备方法
CN109776000B (zh) * 2019-04-02 2021-08-06 四川聚创石墨烯科技有限公司 花生壳石墨烯水泥基复合浆料、复合材料的制备方法

Also Published As

Publication number Publication date
RU2019138720A3 (ru) 2021-09-09
US20200055776A1 (en) 2020-02-20
CA3059281A1 (en) 2018-11-08
RU2019138720A (ru) 2021-06-03
WO2018202785A1 (de) 2018-11-08

Similar Documents

Publication Publication Date Title
EP3619178A1 (de) Betonelement mit bewehrung mit verbessertem oxidationsschutz
DE69728060T2 (de) Mit siliciumcarbid verstärktes siliciumcarbid-verbundwerkstoff
DE69417384T2 (de) Prepreg, Verfahren zu seiner Herstellung und davon abgeleitete Produkte
DE60222841T2 (de) Keramikmatmatrixverbundwerkstoffe auf Oxidbasis
DE69911202T2 (de) In einer zementmatrix dispergierte organische fasern enthaltend beton, beton-zementmatrix und vormischungen
KR101387291B1 (ko) 새로운 콘크리트 조성물
DE102010009146B4 (de) Plastische feuerfeste Masse und feuerfester Mörtel und deren Verwendung
Han et al. Multiscale carbon nanosphere–carbon fiber reinforcement for cement-based composites with enhanced high-temperature resistance
DE60000552T2 (de) Verfahren zur Herstellung eines anorganischen Formkörpers
DE60130688T2 (de) Verfahren zur herstellung von mit sic-fasern verstärktem sic-verbundwerkstoff mit hilfe einer heisspresse
JPS62297265A (ja) 炭素繊維複合高強度耐火物
EP1852405A2 (de) Reaktives flüssiges Keramikbindemittel
DE102011087367A1 (de) Faserverstärkter Beton
DE102005048190A1 (de) Beschichtung in verstärkten Verbundwerkstoffen
EP1787967B1 (de) Verfahren zum Herstellen eines gebrannten Formteils einer feuerfesten Auskleidung
EP4143144A1 (de) Verfahren zu herstellung wärmedämmender kompositpartikel, kompositpartikel und deren verwendung
DE69324767T2 (de) Oxidationsbeständiger Kohlenstoff-Kohlenstoff Verbundstoff mit SiC-dotierter Matrix und dessen Herstellungsverfahren
EP3138826B1 (de) Baustofftrockenmischung enthaltend pyrogene kieselsäure und daraus erhältlicher brandschutzputz
WO2014154573A1 (de) Korrosionsschutz für gussrohre
DE102015201119B4 (de) Herstellungsverfahren von Keramikmatrix-Halbzeugen
DE4016052A1 (de) Heissgasrohr
DE102019202695A1 (de) Verfahren zur Herstellung von Prepregs für die Herstellung faserverstärkter Keramikbauteile
WO1999067185A2 (de) Werkstoffe zur konstruktion und isolation, ein verfahren zur herstellung und deren verwendung sowie ein bindemittel zur herstellung von werkstoffen
DE102015221837B4 (de) Verfahren zur Herstellung eines Keramikgussteils
EP3032126B1 (de) Keramische Bremsscheibe

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20191024

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

TPAC Observations filed by third parties

Free format text: ORIGINAL CODE: EPIDOSNTIPA

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

PUAG Search results despatched under rule 164(2) epc together with communication from examining division

Free format text: ORIGINAL CODE: 0009017

17Q First examination report despatched

Effective date: 20210311

17Q First examination report despatched

Effective date: 20210323

B565 Issuance of search results under rule 164(2) epc

Effective date: 20210323

RIC1 Information provided on ipc code assigned before grant

Ipc: C04B 20/10 20060101ALI20210319BHEP

Ipc: C04B 28/02 20060101ALI20210319BHEP

Ipc: C04B 28/00 20060101ALI20210319BHEP

Ipc: C04B 20/12 20060101AFI20210319BHEP

TPAC Observations filed by third parties

Free format text: ORIGINAL CODE: EPIDOSNTIPA

TPAC Observations filed by third parties

Free format text: ORIGINAL CODE: EPIDOSNTIPA

TPAC Observations filed by third parties

Free format text: ORIGINAL CODE: EPIDOSNTIPA

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20230712