WO2025210077A1 - Nanomatériau pour l'amélioration de la résistance et de la durabilité de matériaux cimentaires - Google Patents

Nanomatériau pour l'amélioration de la résistance et de la durabilité de matériaux cimentaires

Info

Publication number
WO2025210077A1
WO2025210077A1 PCT/EP2025/058970 EP2025058970W WO2025210077A1 WO 2025210077 A1 WO2025210077 A1 WO 2025210077A1 EP 2025058970 W EP2025058970 W EP 2025058970W WO 2025210077 A1 WO2025210077 A1 WO 2025210077A1
Authority
WO
WIPO (PCT)
Prior art keywords
graphene oxide
nanoplatelets
graphene
particles
cementitious
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.)
Pending
Application number
PCT/EP2025/058970
Other languages
English (en)
Inventor
Jan Nordin
Farid AKHTAR
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.)
Grafoam AB
Original Assignee
Grafoam AB
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 Grafoam AB filed Critical Grafoam AB
Publication of WO2025210077A1 publication Critical patent/WO2025210077A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • C04B7/00—Hydraulic 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
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/022—Carbon
    • C04B14/024—Graphite
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/022—Carbon
    • C04B14/026—Carbon of particular shape, e.g. nanotubes
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/04—Silica-rich materials; Silicates
    • C04B14/06—Quartz; Sand
    • C04B14/064—Silica aerogel
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/32—Carbides; Nitrides; Borides ; Silicides
    • C04B14/322—Carbides
    • C04B14/324—Silicon carbide
    • 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
    • C04B16/08—Macromolecular compounds porous, e.g. expanded polystyrene beads or microballoons
    • C04B16/085—Macromolecular compounds porous, e.g. expanded polystyrene beads or microballoons expanded in situ, i.e. during or after mixing the mortar, concrete or artificial stone ingredients
    • 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
    • C04B20/0008—Materials specified by a shape not covered by C04B20/0016 - C04B20/0056, e.g. nanotubes
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028—Aspects relating to the mixing step of the mortar preparation
    • C04B40/0039—Premixtures of ingredients
    • 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
    • C04B7/00—Hydraulic cements
    • C04B7/24—Cements from oil shales, residues or waste other than slag
    • 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
    • C04B2103/0041—Non-polymeric ingredients chosen for their physico-chemical characteristics
    • C04B2103/0043—Compounds chosen for their specific Moh's hardness

Definitions

  • Graphene one of many two-dimensional materials , has many unique properties regarding for instance thermal and electrical conductivity, barrier properties as well as mechanical properties . It has an exceptionally high tensile strength and is at the same time the thinnest two-dimensional material known . Graphene and graphene oxide have previously been evaluated in cementitious materials and proven to improve various material properties including bending strength and compression strength (WO 2019/ 175564 Al ) .
  • SiC silicon carbide
  • SiC can be made acicular, i . e . with a high aspect ratio of at least 5 or at least 10 , and it has an exceptionally high hardness . Measuring 9 . 5 on the Mohs scale of hardness , or Vickers hardness well above 2000 , it is close to that of diamond .
  • Patent US 4 , 666 , 520 "Cemetitious composite material with silicon carbide aggregate" describes some benefits by adding SiC to cementitious materials .
  • CN 109678439 discloses cement concrete comprising sulphoaluminate cement , fine sand, medium-coarse sand, mineral powder, graphene oxide , hollow glass beads , gypsum, water and concrete fibers .
  • cement additives according to the state of the art can improve the properties of cementitious products , there is still room for an improvement regarding various properties such as for instance the wear resistance , strength and durability .
  • a cementitious product comprising a cement binder and at least two additives selected from the group consisting of a) , b) , and c) below: a) nanoplatelets of a material selected from the group consisting of graphene, graphene oxide, reduced graphene oxide, and an inorganic material, wherein the nanoplatelets have a lateral size as measured according to ISO/TS 21356-1:2021 larger than 1 pm, preferably larger than 2 pm, b) particles comprising an inorganic material, wherein the particles have an aspect ratio of at least 5, wherein the aspect ratio is the maximum Feret diameter to the minimum Feret diameter X Fere t m ax/X Fe ret min, wherein the minimum Feret diameter and the maximum Feret diameter are measured according to ISO 13322-1:2014, wherein the particles have a hardness as measured according to ASTM E384-22 of at least 900 Hv, preferably above 1300 Hv and most preferably above 2000
  • an additive for use in production of cementitious materials or ceramic materials, based on a pumpable water-based dispersion of a) and b) below; a) nanoplatelets of a material selected from the group consisting of graphene, graphene oxide, reduced graphene oxide, and an inorganic material, wherein the nanoplatelets have a lateral si ze as measured according to ISO/TS 21356- 1 : 2021 larger than 1 pm, preferably larger than 2 pm, b ) particles comprising an inorganic material , wherein the particles have an aspect ratio of at least 5 , wherein the aspect ratio is the maximum Feret diameter to the minimum Feret diameter X Fere t m ax/X Fe ret min, wherein the minimum Feret diameter and the maximum Feret diameter are measured according to ISO 13322- 1 : 2014 , wherein the particles have a hardness as measured according to ASTM E384-22 of at least 900 Hv, preferably above 1
  • Advantages include that strength, wear resistance and/or durability of cementitious materials is improved .
  • 2D materials refers to solids consisting of a single layer or a few layers of atoms .
  • graphene nanoplatelets ⁇ are short: stacks of platele t “shaped: graphene sheets ,

Landscapes

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

Abstract

L'invention concerne un produit cimentaire et un additif conçus pour améliorer la résistance, la résistance à l'usure et la durabilité de matériaux cimentaires. Ce résultat est obtenu à l'aide d'une combinaison de : (a) nanoplaquettes de graphène, d'oxyde de graphène, d'oxyde de graphène réduit ou de matériaux inorganiques ayant une taille latérale supérieure à 1 µm; (b) particules inorganiques ayant un rapport d'aspect supérieur ou égal à 5 et une dureté d'au moins 900 Hv, tel que du carbure de silicium ; et (c) microsphères souples creuses ayant une taille moyenne de 5 à 120 µm. La synergie de ces composants améliore considérablement les propriétés mécaniques de produits cimentaires, en particulier ceux ayant une teneur réduite en ciment Portland en faveur de liants durables tels que des cendres volcaniques et des déchets industriels recyclés. L'additif est approprié pour être utilisé dans des dispersions aqueuses pompables pour des matériaux cimentaires et céramiques, ouvrant la voie à des matériaux de construction plus durables.
PCT/EP2025/058970 2024-04-03 2025-04-02 Nanomatériau pour l'amélioration de la résistance et de la durabilité de matériaux cimentaires Pending WO2025210077A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE2450354A SE547856C2 (en) 2024-04-03 2024-04-03 Nanomaterial for strength and durability improvment of cementitious materials
SE2450354-2 2024-04-03

Publications (1)

Publication Number Publication Date
WO2025210077A1 true WO2025210077A1 (fr) 2025-10-09

Family

ID=95290266

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2025/058970 Pending WO2025210077A1 (fr) 2024-04-03 2025-04-02 Nanomatériau pour l'amélioration de la résistance et de la durabilité de matériaux cimentaires

Country Status (2)

Country Link
SE (1) SE547856C2 (fr)
WO (1) WO2025210077A1 (fr)

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CN115057681A (zh) * 2022-07-01 2022-09-16 江苏阿路美格新材料股份有限公司 一种石墨烯改性高强高绝热保温板及其制备方法
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WO2023224847A1 (fr) * 2022-05-17 2023-11-23 Geothermic Solution, Inc. Compositions et procédés de prévention de reflux d'amélioration de portée thermique
CN115057681A (zh) * 2022-07-01 2022-09-16 江苏阿路美格新材料股份有限公司 一种石墨烯改性高强高绝热保温板及其制备方法

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