WO2017080577A1 - Liant à base de laitier granulé, broyé de haut fourneau, mortier ou béton décoloré comprenant ledit liant et leurs procédés de préparation - Google Patents

Liant à base de laitier granulé, broyé de haut fourneau, mortier ou béton décoloré comprenant ledit liant et leurs procédés de préparation Download PDF

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Publication number
WO2017080577A1
WO2017080577A1 PCT/EP2015/076095 EP2015076095W WO2017080577A1 WO 2017080577 A1 WO2017080577 A1 WO 2017080577A1 EP 2015076095 W EP2015076095 W EP 2015076095W WO 2017080577 A1 WO2017080577 A1 WO 2017080577A1
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WIPO (PCT)
Prior art keywords
ggbs
cements
mortar
binder
sulphur compounds
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PCT/EP2015/076095
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English (en)
Inventor
Xiaoxiao GAO
Laurent Frouin
Martin Cyr
Claude Musikas
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Ecocem Materials Limited
Universite Paul Sabatier Toulouse Iii
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Application filed by Ecocem Materials Limited, Universite Paul Sabatier Toulouse Iii filed Critical Ecocem Materials Limited
Priority to PCT/EP2015/076095 priority Critical patent/WO2017080577A1/fr
Publication of WO2017080577A1 publication Critical patent/WO2017080577A1/fr

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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
    • C04B28/08—Slag 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
    • 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
    • C04B2111/2038—Resistance against physical degradation
    • C04B2111/2076—Discolouring resistant materials

Definitions

  • the technical field of the invention relates to hydraulic mineral binders including Ground Granulated Blast Slag (GGBS), which are used in settable and hardenable compositions, such as mortar or concrete compositions.
  • GGBS Ground Granulated Blast Slag
  • the invention relates to binders and to settable and hardenable compositions for the building industry, that include at least GGBS as hydraulic binder as well as an additive that reduces or eliminates undesirable colouring on the surface of these compositions as they are set and hardened.
  • the invention concerns also the methods of preparation of these GGBS-based binders, of these dry or wet settable and hardenable compositions.
  • Slag rich mortars and concretes including slag portland blended and geopolymer-based cements, turn a blue/green colour after setting & hardening.
  • the specific blue green colour of exterior surface turns to "grey” (cement concrete) or "white” (slag concrete).
  • grey cement concrete
  • white slag concrete
  • WO2012/083384A1 discloses a settable composition
  • a cementitious component including slag a sulfur scavenging component including a zinc compound (zinc oxide, zinc sulfate and zinc carbonate), and an alkaline activator.
  • Zinc oxide, zinc sulfate or zinc carbonate is supposed to eliminate colouration of the settable material.
  • WO2014/013199A1 also describes a binder comprising a ground granulated blast furnace slag and at least one mono-, di- or trivalent metal salt selected from the group consisting of bismuth, copper, silver and tin salts, (ranked in a decreased order of effectiveness in preventing discolouration : Bi 2 (S0 4 ) 3 > CuS0 4 > CuN0 3 > Cu(OH) 2 > SnS0 4 ).
  • These salts are presented as capable of forming, during mixing with said slag, a metal sulfide for which the solubility product K sp , measured at 25°C, is less than 10 ⁇ 10 .
  • the invention aims at addressing at least one of the above problems and/or needs, through fulfilling at least one of the following objectives:
  • GGBS-based binder or a mortar or concrete composition including said GGBS-based binder which are not prone to develop an undesirable colour as the setting and the hardening occur.
  • GGBS-based binder or a mortar or concrete composition including said GGBS-based binder comprising an active discolourating additive which is more efficient than the known zinc oxide, zinc sulfate, zinc carbonate, Bi 2 (S0 4 ) 3 , CuS0 4 , CuN0 3 , Cu(OH) 2 , and SnS0 4 .
  • GGBS-based binder or a mortar or concrete composition including said GGBS-based binder comprising an active discolourating additive which is efficient and cheap.
  • GGBS-based binder or a mortar or concrete composition including said GGBS-based binder comprising an active discolourating additive which is efficient and Environmentally- friendly.
  • GGBS-based binder Providing a simple and cheap method of preparation of the GGBS-based binder or the mortar or concrete composition including said GGBS-based binder, which complies with at least one of the objectives -a- to -d-.
  • GGBS-based binder or a mortar or concrete composition including said GGBS- based binder.
  • GGBS hardened products for the building industry including GGBS as at least partial binder, which are not undesirably coloured, all their life long.
  • ⁇ * Providing a new ingredient for binder or settable and hardenable compositions, which prevents undesirable colouration in the final set and hardened products (e.g. buildings or civil engineering works or elements thereof, coatings, fillers, screeds, tiles adhesives and/or internal or external insulation systems).
  • GGBS-based binder comprising:
  • the invention concerns a method for the preparation of the GGBS-based binder as above mentioned, said method comprising mixing of at least one GGBS with at least one oxidation agent OA of the GGBS sulphur compounds, particularly of the species S 3 " of said GGBS sulphur compounds, said mixing preferably occurring at dry state.
  • the invention concerns a mortar or concrete composition
  • a mortar or concrete composition comprising:
  • the invention concerns a method for the preparation of the composition as above mentioned, said method comprising mixing of all the components of the composition, the introduction of the oxidation agent OA occurring in one or several times at any time of the mixing.
  • the invention concerns a wet formulation comprising a mixture of water the GGBS-based binder as above mentioned and/or the mortar or concrete composition as above mentioned.
  • the invention concerns a method for the preparation of a wet formulation as above mentioned, said method comprising mixing water with the whole or a part of the GGBS-based binder as above mentioned and/or with the whole or a part of the mortar or concrete composition as above mentioned, the introduction the whole or a part of the oxidation agent OA possibly occurring before and/or during and/or after the introduction of water.
  • the invention concerns a method of making buildings or civil engineering works or elements thereof, coatings, fillers, screeds, tiles adhesives and/or internal or external insulation systems, from the wet formulation as above mentioned, which hardens when exposed to the air.
  • the invention concerns the use of at least one oxidation agent OA of the GGBS sulphur compounds, particularly of the species S 3 " of said GGBS sulphur compounds, for discolouring hardened GGBS containing mortars or concrete.
  • the invention concerns a method for discolouring hardened GGBS containing mortars or concrete consisting in combining GGBS with at least one oxidation agent OA of the GGBS sulphur compounds, particularly of the species S 3 " of said GGBS sulphur compounds.
  • binder refers to any material or substance that holds or draws other materials together to form a cohesive whole mechanically, chemically, or as an adhesive.
  • “mortar” refers to a material composed of binder(s), sand, water and admixtures.
  • crete refers to a material composed of binder(s), gravel, sand, water and admixtures etc.
  • cement is a mineral binder, free from any organic compound. It includes slag Portland blended and geopolymer-based cements Detailed description of the invention
  • the binder contains GGBS also named Grounded granulated blast furnace slag (GGBFS).
  • GGBFS Grounded granulated blast furnace slag
  • GGBS is a glassy granular material obtained by quenching molten GGBFS in water, and then by grinding the quenched product to improve GGBS reactivity.
  • GGBS is essentially composed of Si0 2 , CaO, MgO, and A1 2 0 3 , which are also common components in commercial silicate glasses.
  • GGBS is used as partial substitute of Portland cement in OPC binder (OPC: Ordinary Portland Cement). Replacement levels for GGBS vary from 30% to up to 85%. Typically 40 to 50%> is used in most instances.
  • GGBS makes it possible to decrease the hydration heat of cement and improve the binder resistance to freezing, thawing, chemicals and seawater. GGBS is also beneficial to concrete structures that require high durability. As substitute of OPC clinkers, GGBS shrinks the environmental impact of OPC manufacture which is energy-guzzling which generates huge amounts of C0 2 issued from the thermal decomposition of limestone, a material used to produce OPC clinkers.
  • GGBS reacts like Portland cement when in contact with water. But as the rate of reaction is slower, an activator is necessary.
  • the calcium hydroxide released when Portland cement reacts with water serves to activate GGBS, hence GGBS is normally combined with Portland cement. It can be also, sulfate salts, alkaline solution etc. Among these activators, high alkaline solution can boost the rate of hydration much efficiently
  • the binder is characterized by an OA concentration [OA] expressed in % w/w with respect to GGBS, and given hereafter in an increased order of preference is :
  • OA is chosen among the oxidants, preferably in the group comprising - or even better consisting in- :
  • peroxides preferably H 2 0 2 ;
  • peroxide salts preferably perborates, peroxydisulfuric salts
  • halogens preferably halogens which oxidation state is greater than or equal to
  • halogen-oxo-acid salts 1, more preferably halogen-oxo-acid salts; chlorates (I), (III), (V) and/or(VII), iodates, periodates, bromates, borates, perborates;
  • sulfite salts preferably sodium sulfites
  • transition metals and their oxides preferably transition metals which oxidation state is greater than or equal to 1, more preferably chromate salts, dichromate salts, Mn0 2 , permanganate salts, Co (III), Pb(IV); Pb0 2 , Ni0 2 ;
  • the OA concentration [OA] expressed in % w/w with respect to GGBS, and given hereafter in an increased order of preference is:
  • OA is chosen among the oxidation catalysts, preferably the oxidation catalysts which the active component(s), is (are) in the group comprising - or even better consisting in - : Mn0 2 ; MnO ; V 2 0 5 ; activated carbon ; Cr 2 0 3 ; Fe 2 0 3 ; Ti0 2 ; CuO ; Co 2 0 3 ; NiO ; Ni0 2 ; and mixtures thereof.
  • the oxidation catalysts OA includes non-supported (or bulk catalysts) and supported catalysts with supports as Si0 2 , A1 2 0 3 , zeolites, nanotubes etc.
  • the supported catalysts are prepared as indicated hereafter: the active components are synthesized on the support like Si0 2 , A1 2 0, zeolites, nanotubes etc. by impregnation technique using metal precursors to deposit onto the support surface, and then by post-treatments (like drying, calcinations, forming, activation) to transform the precursors into the required active compound, e.g. : Mn0 2 /Si0 2 .
  • the supported catalyst has the advantage to have a great specific surface.
  • the OA concentration [OA] expressed in % w/w with respect to GGBS, and given hereafter in an increased order of preference is:
  • This low concentration of activity is interesting because it limits the risk of damaging the settable and hardenable composition including the GGBS-based binder. This low concentration is also not insignificant on an economic point of view. It is quite surprising to note that the catalytic way of action of OA in this second embodiment, is possible a so complex medium, namely a cementitious composition including GGBS. One could have feared a catalyst poisoning.
  • the mortar or concrete compositions according to the invention comprise:
  • the weight ratio GGBS-based binder I whole hydraulic binder of the mortar/concrete composition is between 20/80 and 100/0.
  • These mortar or concrete composition preferably comprises at least one binder different from the GGBS-based binder, preferably selected in the group comprising - or even better consisting in- : Portland cements, Portland-fly ash cements, Portland pozzolan cement, Portland silica fume cements, masonry cements, expansive cements, White blended cements, coloured cements, very finely ground cements, pozzolan- lime cements, supersulfated cements, belite cements, calcium sulfoaluminate cements, "natural" cements, geopolymer cements, cements formed of pozzolanic mixtures optionally comprising fly ash, fumed silicas, limestone, calcined schiste and/or natural or calcined pozzolans; and mixtures thereof.
  • Aggregates comprise a large category of particulate material used in construction, including sands, gravels, crushed stones, slag (non-ground), recycled concrete and geosynthetic aggregates. They serve as reinforcement to add strength to the overall composite material.
  • the mortar/concrete composition can also include:
  • ⁇ fillers such as flours, for example based on quartz, limestone, barite or clays and mixtures thereof;
  • light fillers such as perlites, kieselguhr (diatomaceous earth), expanded mica (vermiculite) and foamed sand, and mixtures thereof.
  • the quantity of the aggregates/fillers in the mortar or concrete composition can suitably be (in % by weight) between 0 and 90, preferably between 20 and 80, and more preferably between 50 and 70, based on the total weight of the mortar or concrete composition and depending on the application.
  • the mortar/concrete composition advantageously, comprises at least one activator chosen in the group comprising - or even better consisting in- : the activators, preferably the alkaline activators and/or the sulfate activators and/or the slag microparticles based activators and/or the cement-based activators.
  • alkaline activators As examples of alkaline activators, one can quoted slaked lime, sodium hydroxide, potassium hydroxide, sodium silicate or potassium silicate.
  • Sulfate activators can be for instance calcium sulfates.
  • the activator is preferably incorporated under pulverulent form in the dry composition, before its mixing with water, so that a so-called ready-mix mortar/concrete composition is produced.
  • the dry activator can be mixed with the binders and/or aggregates/fillers.
  • an aqueous, preferably alkaline activating solution can be added to the other pulverulent components.
  • the term two-component binder is used.
  • a concentration from 1 % to 10% by weight, with respect to the total weight of the composition is an illustration of a preferred embodiment of the mortar/concrete according to the invention.
  • a water retentive agent has the property to keep the water of mixing before the setting.
  • the water is so trapped in the wet formulation paste which improves its bond. To some extent, the water is less absorbed by the support. Salting out on the surface is limited and evaporation is reduced.
  • the water retentive agent is preferably chosen in the group comprising: modified cellulose ethers and/or starches ethers and/or guar ether and their mixes, more preferably consisting of: methylcelluloses, methylhydroxypropylcelluloses, methylhydroxyethyl-celluloses and their mixes.
  • the possible rheological agent (also named a "thickener”) is preferably chosen in the group comprising, more preferably consisting of : clays, starch ethers, cellulose ethers and/or gums (e.g. Welan guar xanthane, succinoglycans), modified polysaccharides -preferably among modified starch ethers-, polyvinylic alcohols, polyacrylamides, clays, sepiolites, bentonites, and their mixes, and more preferably chosen in the group of clays, bentonite, montmorillonite.
  • Defoamer/ Antifoams e.g. Welan guar xanthane, succinoglycans
  • the possible defoamer is preferably chosen in the group comprising, more preferably consisting of: polyether polyols and mixes thereof.
  • the possible biocide is preferably chosen in the group comprising, more preferably consisting of: mineral oxides like zinc oxide and mixes thereof.
  • the possible pigment is preferably chosen in the group comprising, more preferably consisting of: Ti0 2 , iron oxide and mixes thereof.
  • the possible flame retardant (or flame proof agent), which makes it possible to increase the fire resistance and/or to shrink the speed of flame spreading of the composition is preferably chosen in the group comprising, more preferably consisting of:
  • ⁇ minerals preferably aluminium hydroxide [Al(OH) 3 , ATH], magnesium hydroxide MDH, hydromagnesite, hydrates, red phosphorus, and boron compounds, preferably borates,
  • organohalogen compounds preferably organo chlorines and more preferably such as chlorendic acid derivatives and chlorinated paraffins; organobromines such as decabromodiphenyl ether (decaBDE), decabromodiphenyl ethane,
  • ⁇ polymeric brominated compounds preferably brominated polystyrenes, brominated carbonate oligomers (BCO's), brominated epoxy oligomers (BEO's), tetrabromophthalic anyhydride, Tetrabromobisphenol A(TBBPA) and hexabromocyclododecane (HBCD).
  • antimony preferably pentoxide and sodium antimonite
  • organophosphorus compounds preferably organophosphate, TPP, RDP, BPADP, tri-o-cresyl phosphate,
  • ⁇ phosphonates preferably DMMP and phosphinates.
  • ⁇ chlorophosphates like TMCP and TDCP ⁇ chlorophosphates like TMCP and TDCP.
  • composition according to the invention can also comprise some optional functional ingredients like
  • air-entraining agents surfactants e.g. natural resins, sulfated or sulfonated compounds, synthetic detergents, organic fatty acids and their mixes, preferably among the lignosulfonates, the basic soaps of fatty acids and their mixes, and, more preferably in the group comprising the sulfonate olefins, the sodium lauryl sulfate de sodium and their mixes; accelerators (calcium salts, carbonates, preferably lithium or sodium and their mixes);
  • surfactants e.g. natural resins, sulfated or sulfonated compounds, synthetic detergents, organic fatty acids and their mixes, preferably among the lignosulfonates, the basic soaps of fatty acids and their mixes, and, more preferably in the group comprising the sulfonate olefins, the sodium lauryl sulfate de sodium and their mixes
  • accelerators calcium salts, carbonates, preferably lithium or sodium and their mixes
  • Additives' concentration can be from 0,1% to 10% by weight of the total weight of the composition.
  • GGBS delivered from ECOCEM France (Fos/Mer) 2013.
  • Non GGBS-based binder Portland cement (in short CEMI): CEMI 52.5R, Lafarge.
  • Activator Sodium metasilicate: provided by SILMACO NV, powder, disodium metasilicate anhydrous (module 1.0) 2013.
  • OA2 Sodium carbonate peroxyhydrate-coated: Oxyper-S CS from Solvay, 89% purity.
  • OA3 MnQ 7 : CDMA 52, 81% purity.
  • the chemical agents were added to the dry mixtures before casting.
  • the paste was casted into a plastic tube covered with lid to avoid the contact with air.
  • the tested oxidation agents OA include two families: peroxide family (like Ca0 2 , 2Na 2 C0 3 -3H 2 0 2 ) and manganese family (like Mn0 2 , KMn0 4 ).
  • Calcium peroxide is a strong oxidant, used usually in agriculture as an oxygen fertilizer or in the aquaculture industry to disinfect water. When the product is in contact with water, it can decompose and release oxygen as the equations (1) and (2). Calcium peroxide is easily dissolved in acid, but almost insoluble in water (solubility: 1.65 g/1 at 20°C) or basic solution. Ca0 2 +2H 2 0 ⁇ Ca(OH) 2 +H 2 0 2 Eq.(l)
  • Binders with different addition of Ca0 2 were prepared.
  • the pastes were casted with 100% GGBS activated by 4% sodium metasilicate with water/binder ratio of 0.47.
  • Several days after casting, the samples were demoulded, and split into half to observe the interior colour.
  • the exterior and interior colour of the samples varies from blue to colourless with the increasing of Ca0 2 percentage. 4% seems appropriate to eliminate the blue/green colour.
  • Sodiumcarbonate peroxydrate is in the same family as calcium peroxide, also used as an oxidation agent. It is produced industrially through absorbing hydrogen peroxide by sodium carbonate. When the product gets into contact with water, it can dissociate into hydrogen peroxide and sodium carbonate, and the hydrogen peroxide releases oxygen, as in equations (3) and (4). Comparing to calcium peroxide, sodiumcarbonate peroxydrate is soluble in water (solubility: 140 g/1 at 20°C). It can release oxygen much faster.
  • Binders with different addition of 2Na 2 C0 3 '3H 2 0 2 were prepared.
  • the pastes were casted with 100% GGBS activated by 4% sodium metasilicate with water/binder ratio of 0.47.
  • Several days after casting the samples were demoulded, and split into half to observe the interior colour. From Figure 2, it can be seen that from 0.5% of addition, the porosity of the sample becomes important, until 2% a foam was created.
  • the "blue" colour gets lighter and lighter.
  • Manganese dioxide having a black or brown colour, occurs naturally as the mineral pyrolusite.
  • Mn0 2 can oxidize and catalyze sulphide solution with the following equations (5) and (6).
  • Mn 2 0 3 can be oxidized by oxygen in atmosphere to Mn0 2 for reuse.
  • Binders with different addition of Mn0 2 were prepared.
  • the pastes were casted with 100% GGBS activated by 4% sodium metasilicate with water/binder ratio of 0.47.
  • Several days after casting, the samples were demoulded, and split into half to observe the interior colour.
  • the exterior and interior colour of the samples varies from blue to colourless with the increasing of Mn0 2 percentage.
  • An addition of 0.5% is effective to eliminate completely the blue colour.
  • Binders with different addition of KMn0 4 were prepared.
  • the pastes were casted with 100% GGBS activated by 4% sodium metasilicate with water/binder ratio of 0.47.
  • Figure 4 shows the photos taken with different reaction times after the mixture of raw materials. Colour evolution was remarked along with mixture time: from violet to green, and then yellow, probably another green which depends on the added quantity.
  • the "violet” is the typical colour of KMn0 4 dissolving in water. The following "green” is likely due to the K 2 Mn0 4 green colour.
  • the "brown-yellow” colour can be attributed to the Mn0 2 or MnOOH brown colour.
  • GGBS activated by 4% sodium metasilicate and mix of 70% GGBS and 30% CEMI Two types of binders were tested: GGBS activated by 4% sodium metasilicate and mix of 70% GGBS and 30% CEMI.
  • the mortars were casted with normalised sable ( ⁇ 2mm) and w/b 0.47. Mn0 2 (0.5%> in mass of GGBS) was added in the dry mix.
  • the casting was effectuated according to the Norm EN 196-1 : slow mix for 30 second, fast mix for 30 second, followed by a rest for 90 second, and finally fast mix for 60 second.
  • the samples were casted in polystyrene mould, covered with plastic film and conserved at ambient.
  • One part of the samples was demoulded after 2 days, and conserved into water for two weeks.
  • the rest of samples were kept in moulds for 2 weeks.
  • the compressive 5 strength was measured after 2 weeks of conservation in water or in mould on a 3R 260K press with a load speed
  • Figure 5 shows the surfaces of samples after 2 weeks of storage.
  • GGBS activated by0 4% sodium metasilicate
  • the reference manifested the traditional blue colour as observed before.
  • With the addition of 0.5% Mn0 2 this blue colour disappeared.
  • the phenomenon was observed for both two cases of conservation: in mould and in water.
  • 70% GGBS and 30%> CEMI the reference displayed only a zone of blue colour at the bottom of the sample in the case of conservation in mould. The blue colour was more5 concentrated and remarkable when the sample was kept in water (see the non-free surface in water).
  • 0.5% Mn0 2 this blue colour was not observed at all.
  • Table 1 gives the comparison of compressive strength with and without added Mn0 2 . Considering the diversity of samples, the difference of compressive strength is considered as negligible. So, the addition of Mn0 2 has no side effect on compressive strength of0 mortars.
  • the minimal quantity of Mn0 2 depends on the curing condition.
  • the addition of 0.4%> meets some given aesthetic requirements, if the samples are allowed to expose to air for at least one day.
  • 0.1% Mn0 2 makes it possible to comply with said aesthetic requirements, if the samples are allowed to expose to air for at least one day.

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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 vise à résoudre le problème consistant à produire un liant à base de laitier granulé, broyé de haut fourneau (GGBS) ou une composition de mortier ou de béton comprenant ledit liant à base de GGBS, qui n'est pas susceptible de développer une couleur indésirable lors de la prise ou du durcissement. Par conséquent, l'invention concerne un liant à base de GGBS comprenant au moins un GGBS; au moins un agent d'oxydation OA des composés soufrés de GGBS, en particulier l'espèce S3 - desdits composés soufrés de GGBS. Le procédé de préparation du liant à base de GGBS, la composition de mortier ou de béton et son procédé de préparation, la formulation humide fabriquée à partir de ladite composition et sa préparation, la fabrication d'articles durcis à partir de cette composition humide, et l'utilisation d'au moins un agent d'oxydation OA pour la décoloration de la composition de béton/mortier à base de GGBS sont d'autres objets de l'invention.
PCT/EP2015/076095 2015-11-09 2015-11-09 Liant à base de laitier granulé, broyé de haut fourneau, mortier ou béton décoloré comprenant ledit liant et leurs procédés de préparation WO2017080577A1 (fr)

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Cited By (4)

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Publication number Priority date Publication date Assignee Title
CN108516772A (zh) * 2018-06-25 2018-09-11 深圳市振惠建混凝土有限公司 一种透水混凝土及其制备方法
CN111247112A (zh) * 2017-10-30 2020-06-05 圣戈班韦伯公司 基于富铝炉渣的粘结剂
CN111646721A (zh) * 2019-07-18 2020-09-11 陕西正元环保科技产业(集团)有限公司 一种固硫灰渣研制的混凝土掺合料及其制备方法
CN112624684A (zh) * 2020-10-26 2021-04-09 西安科技大学 一种致电变色混凝土砖及其生产工艺与制造设备

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JPH0867545A (ja) * 1994-08-30 1996-03-12 Sumikin Kogyo Kk 高炉水砕スラグ含有水和物及びその硬化体
JP2009091207A (ja) * 2007-10-10 2009-04-30 Machida Corporation Kk コンクリートブロックの製造方法

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Publication number Priority date Publication date Assignee Title
JPH0781986A (ja) * 1993-09-14 1995-03-28 Mitsuo Hanada 高炉水砕スラグの脱色使用方法および高炉セメント組成物
JPH0867545A (ja) * 1994-08-30 1996-03-12 Sumikin Kogyo Kk 高炉水砕スラグ含有水和物及びその硬化体
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CN108516772A (zh) * 2018-06-25 2018-09-11 深圳市振惠建混凝土有限公司 一种透水混凝土及其制备方法
CN108516772B (zh) * 2018-06-25 2020-10-30 深圳市振惠建混凝土有限公司 一种透水混凝土及其制备方法
CN111646721A (zh) * 2019-07-18 2020-09-11 陕西正元环保科技产业(集团)有限公司 一种固硫灰渣研制的混凝土掺合料及其制备方法
CN112624684A (zh) * 2020-10-26 2021-04-09 西安科技大学 一种致电变色混凝土砖及其生产工艺与制造设备
CN112624684B (zh) * 2020-10-26 2022-05-20 西安科技大学 一种电致变色混凝土砖及其生产工艺与制造设备

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