ITUB20154724A1 - Malta a legante geopolimerico per ripristino, rasatura, stuccatura, isolamento termico per applicazioni in verticale, a mano, pronta all'uso - Google Patents
Malta a legante geopolimerico per ripristino, rasatura, stuccatura, isolamento termico per applicazioni in verticale, a mano, pronta all'uso Download PDFInfo
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- ITUB20154724A1 ITUB20154724A1 ITUB2015A004724A ITUB20154724A ITUB20154724A1 IT UB20154724 A1 ITUB20154724 A1 IT UB20154724A1 IT UB2015A004724 A ITUB2015A004724 A IT UB2015A004724A IT UB20154724 A ITUB20154724 A IT UB20154724A IT UB20154724 A1 ITUB20154724 A1 IT UB20154724A1
- Authority
- IT
- Italy
- Prior art keywords
- mortars
- geopolymer
- restoration
- ready
- geopolymeric
- Prior art date
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- 239000004570 mortar (masonry) Substances 0.000 title claims description 20
- 238000009413 insulation Methods 0.000 title description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 16
- 229920000876 geopolymer Polymers 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000011230 binding agent Substances 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- 239000011398 Portland cement Substances 0.000 claims description 4
- 239000002893 slag Substances 0.000 claims description 4
- 239000000654 additive Substances 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000000047 product Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 2
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 2
- 239000006227 byproduct Substances 0.000 claims description 2
- 239000010881 fly ash Substances 0.000 claims description 2
- 239000003517 fume Substances 0.000 claims description 2
- 239000010440 gypsum Substances 0.000 claims description 2
- 229910052602 gypsum Inorganic materials 0.000 claims description 2
- 239000004571 lime Substances 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims 2
- 229910002092 carbon dioxide Inorganic materials 0.000 claims 2
- 238000005516 engineering process Methods 0.000 claims 2
- 239000002440 industrial waste Substances 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 claims 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims 2
- 229910000831 Steel Inorganic materials 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 239000001569 carbon dioxide Substances 0.000 claims 1
- 239000003086 colorant Substances 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000004090 dissolution Methods 0.000 claims 1
- 238000010891 electric arc Methods 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- 239000000945 filler Substances 0.000 claims 1
- 239000011521 glass Substances 0.000 claims 1
- 238000009499 grossing Methods 0.000 claims 1
- 239000002920 hazardous waste Substances 0.000 claims 1
- 229930195733 hydrocarbon Natural products 0.000 claims 1
- 150000002430 hydrocarbons Chemical class 0.000 claims 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 239000011412 natural cement Substances 0.000 claims 1
- 239000003345 natural gas Substances 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 239000002952 polymeric resin Substances 0.000 claims 1
- 230000009257 reactivity Effects 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 229920003002 synthetic resin Polymers 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 22
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 239000000843 powder Substances 0.000 description 8
- 239000004576 sand Substances 0.000 description 7
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 5
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 5
- 229910052744 lithium Inorganic materials 0.000 description 5
- 239000011591 potassium Substances 0.000 description 5
- 229910052700 potassium Inorganic materials 0.000 description 5
- 239000011734 sodium Substances 0.000 description 5
- 229910052708 sodium Inorganic materials 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 239000010433 feldspar Substances 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 239000010754 BS 2869 Class F Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000001033 granulometry Methods 0.000 description 1
- 239000004572 hydraulic lime Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- C04B28/006—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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00431—Refractory materials
-
- 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation 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
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Engineering & Computer Science (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Description
DESCRÌPTION
Actua!ly geopolimers in constructions, are used to produce concrete for horizontal use (foundations, basements), for Fllling (precast) or For spray application* (projected applications), thè physical and rheological properties of those products do not allow thè vertical high thickness application, while our innovation is to develop and produce geopolymer mortars, without Portland cement, made of:
- reattive alumino-silicate powders
<■>reactive alkaline liquid sodium based or potassium baséd or lithium based (depending on thè performance desired and depending on thè site of work)
- selected aggregate* (silica sand, feldpar sand and other minerai charges)
- additives and secondary components
These mortars , for vertical use, are easy to apply also by band and they have setting times and workability comparable to traditional mortars (with Portland cement, lime or gypsum) but resistance* and durability strongly higher,
Depending on thè type of formulatìon, for thè different fie!ds of application, percentages of reactive powders, reactive alkaline liquids and secondar/ components and additives , may be changed to characterize performance of mortars,
Parameters that may be changed are:
1- mechanical resistances (including superfìcial abrasion resistance)
2- refra ctoriness
3- thermal insulation
4- adhesiQn (on different substrates)
5- workability
6- consistente (reology of fresh mortar}
7- setting times
3- Chemical resistance (durability)
9- thunderstorms and frost/defrost cycles resistance
Innovation is to produce mortar (not concrete) without Portland cement ready to use ,that can be used in verticaf application , with structural mechanical resistantes, passivating for rebar, acid and sulphate resistant, using also industriai by products (wastes) to thè composition of geopolymer binder.
Other property of innovation ìs use of secondar/ reattive componenti lightweight , inorganic (minerals) to characterize mortati wìth different consistencies.
Basìcal formulations of innovation (depending on thè different performance and fields of work) are:
A)
- fly ash (Class F) dosage 0 - 24,5%
- blast fornace slag (BF5) dosage 5 - 24,5%
- metakaolìn dosage 0 - 15%
- mica dosage 0 - 5%
- aeolites dosage 0 - 5%
- expanded filfite dosage 5 - 20%
- ground graphite dosage 0,3 - 0,5%
B}
- expired alumina cement (>6-18 months ) dosage 20 - 30%
- microsìlica (silica fumes SF) dosage 15 - 40%
- micronìzed alumina (cristalline) dosage 11 - 40%
- naturai hydraulic lime (from NHL to NHL 5) dosage 0 - 5%
- expanded fillite dosage 0- 10%
- ground graphite dosage 03 - 0,5%
- magnesium oxide dosage 0 - 3%
In every recipes silica sand and silica-feldspar sand are present as aggregates with dosage 25 - 75% .
Granulometry of sands:
- silica sand (river sand) 0 - 0,6 mm
- silìca-feldspar sand 0,4 - 1,2 mm
C>
Alkaline liquids used:
1. Sodium based liquid composed by different ratio between sodium silìcate and sodium hydroxide (both liquids), with sodium hydroxide in different moìarity maximum 12M (concent rat ion) depending on performance and field of use , This liquid is indicated for external use and its dosage is from 16 to 40%. For special uses, liquid sodium silìcate may be replace with powder sodium silìcate and liquid sodium hydroxide replace with powder sodium carbonate, so thè liquid part is only water,
2. Potassium based liquid composed by different ratio between potassium silicato and potassium hydroxide (both liquids), with potassium hydroxide in different moìarity maximum 7,5M (concentration) depending on performance and field of use. This liquid is indicated for internai and external use and its dosage is from 15 to 40%. For special uses, liquid potassium silìcate may he replace with powder potassium silìcate and liquid potassium hydroxide replace with powder potassium carbonate, so thè liquid part is only water.
3. Lithium based liquid composed by different ratio between lithium silìcate and lithium hydroxide (both liquids) . This liquid is indicated for internai and external use and its dosage is from 16 to 40%. For special uses liquid lithium silìcate may be replace with powder lithium silìcate and liquid lithium hydroxide feplace with powder Nlhium carbonate, so thè liquid part is only water.
In all alkaline liquids it is possibile to add an extra water in thè dosage till 15%, for workability reasons.
PERFORMANCE
Results obtained wìth geopolymer mortars (A or B C):
- compressive strength ai: 24h from 10 to 50 MPa
7d from 25 to 110 MPa
28d from 30 to >150 MPa
- flexural strength ai: 24h from 5 to 10 MPa
7d from 6 to 15 MPa
28d from 6 to 20 MPa
- setti ng times at 23<Ù>C:
start set 15‘ - 35<1>and end of set 25' - 45' (quick mortars) start set 50' - 3h and end of set 120' - >Gh (norma! set mortars) - density of fresh mortan from 1,8 to 2,3 kg/dm<3>
Claims (1)
- RIVENDICAZIONI: Per quanto riguarda Γ aspetto ecologico, le malte a legante geopolimerico oggetto di questo studio, paragonate a malte prodotte con i leganti idraulici tradizionali, presentano : 1) la maggior parte delle materie prime usate per creare il legante geopolimerico sono provenienti da scarti industriali (anche il cemento alluminoso scaduto sarebbe inutilizzabile nei sistemi tradizionali), quindi si tratta di materiale che viene riciclato: - ceneri volanti dalle centrali elettriche a carbone - loppa d'alto forno dall'industria siderurgica - microsilici (fumi di silice) derivate dalle centrali elettriche ad arco voltaico e dall'industria del vetro - cementi alluminosi scaduti (>6 mesi) Per la produzione di questi sotto prodotti, diversamente da quel che accade per cemento Portland, calce e gesso, viene impiegata molta meno energia (elettricità, gas naturale, idrocarburi e ossigeno), per cui c'è una grande riduzione nella produzione di anidride carbonica C02dell'ordine del 30 - 80%, rispetto a quella generata nel produrre i leganti idraulici tradizionali. L'uso di questi scarti industriali permette di evitarne lo stoccaggio e lo smaltimento [essendo considerati rifiuti pericolosi lo smaltimento deve avvenire in discariche controllate), con indubbi vantaggi ecologici. Le malte geopolimeriche, al termine della loro vita, possono essere frantumate e riciclate come aggregati. 2) utilizzando malte a legante geopolimerico si eliminano del tutto le additivazioni di prodotti organici (resine polimeriche o altri prodotti di sintesi). 3) utilizzando la tecnologia proposta in questo brevetto la necessità ed il consumo di acqua si riduce enormemente (< 15%), inoltre l'extra acqua è richiesta solo per motivi di lavorabilità della malta fresca (la geopolimerizzazione è conseguenza di dissoluzione chimica e ricondensazione, non necessita quindi di acqua per avere luogo), questo comporta bassissimi ritiri e grande stabilità termica. 4) rispetto alle già esistenti tecnologie geopolimeriche, la nostra innovazione consiste nella possibilità di applicare in verticale le malte <a mano ): intonaci, malte da ripristino, rasanti e stucchi geopolimerici pronti all'uso. 5) nelle nostre malte geopolimeriche abbiamo introdotto una innovativa materia prima come alternativa della loppa d’alto forno, il cemento naturale, in quanto la sua composizione chimica, molto più costante della loppa, risulta dare maggiore stabilità prestazionale alle malte. In piu è una materia prima dai colori e dal chimismo compatibili con le applicazioni nell'ambito del restauro. 6) usiamo metacaolino calcinato a 750°C In forni "flash" per mantenere la migliore reattività, che garantisce le migliori prestazioni alle nostre malte.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITUB2015A004724A ITUB20154724A1 (it) | 2015-09-30 | 2015-09-30 | Malta a legante geopolimerico per ripristino, rasatura, stuccatura, isolamento termico per applicazioni in verticale, a mano, pronta all'uso |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITUB2015A004724A ITUB20154724A1 (it) | 2015-09-30 | 2015-09-30 | Malta a legante geopolimerico per ripristino, rasatura, stuccatura, isolamento termico per applicazioni in verticale, a mano, pronta all'uso |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ITUB20154724A1 true ITUB20154724A1 (it) | 2017-03-30 |
Family
ID=55806574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ITUB2015A004724A ITUB20154724A1 (it) | 2015-09-30 | 2015-09-30 | Malta a legante geopolimerico per ripristino, rasatura, stuccatura, isolamento termico per applicazioni in verticale, a mano, pronta all'uso |
Country Status (1)
| Country | Link |
|---|---|
| IT (1) | ITUB20154724A1 (it) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008113609A2 (en) * | 2007-03-22 | 2008-09-25 | Xuhong, Turella-Yuan | Geopolymer composition, coating obtainable therefrom and methods |
| WO2012069024A2 (en) * | 2010-11-23 | 2012-05-31 | Razl Ivan | Acid and high temperature resistant cement composites |
-
2015
- 2015-09-30 IT ITUB2015A004724A patent/ITUB20154724A1/it unknown
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008113609A2 (en) * | 2007-03-22 | 2008-09-25 | Xuhong, Turella-Yuan | Geopolymer composition, coating obtainable therefrom and methods |
| WO2012069024A2 (en) * | 2010-11-23 | 2012-05-31 | Razl Ivan | Acid and high temperature resistant cement composites |
Non-Patent Citations (1)
| Title |
|---|
| BENNY JOSEPH ET AL: "Influence of aggregate content on the behavior of fly ash based geopolymer concrete", SCIENTIA IRANICA, vol. 19, no. 5, 1 October 2012 (2012-10-01), pages 1188 - 1194, XP055287851, ISSN: 1026-3098, DOI: 10.1016/j.scient.2012.07.006 * |
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