NL9400564A - Filler for concrete and similar building material. - Google Patents
Filler for concrete and similar building material. Download PDFInfo
- Publication number
- NL9400564A NL9400564A NL9400564A NL9400564A NL9400564A NL 9400564 A NL9400564 A NL 9400564A NL 9400564 A NL9400564 A NL 9400564A NL 9400564 A NL9400564 A NL 9400564A NL 9400564 A NL9400564 A NL 9400564A
- Authority
- NL
- Netherlands
- Prior art keywords
- concrete
- fly ash
- filler
- pulverized coal
- building material
- Prior art date
Links
- 239000004567 concrete Substances 0.000 title claims description 35
- 239000000945 filler Substances 0.000 title claims description 27
- 239000004566 building material Substances 0.000 title claims description 15
- 239000010881 fly ash Substances 0.000 claims description 36
- 239000003245 coal Substances 0.000 claims description 29
- 239000002245 particle Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000004035 construction material Substances 0.000 claims 1
- 239000004568 cement Substances 0.000 description 7
- 239000011398 Portland cement Substances 0.000 description 4
- 238000009837 dry grinding Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000001238 wet grinding Methods 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 239000011400 blast furnace cement Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004574 high-performance concrete Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910021487 silica fume Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
- C04B18/08—Flue dust, i.e. fly ash
-
- 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
Description
VULMIDDEL VOOR BETON EN SOORTGELIJK BOUWMATERIAALFILLER FOR CONCRETE AND SIMILAR BUILDING MATERIAL
Deze uitvinding heeft betrekking op een vulmiddel voor beton en soortgelijk bouwmateriaal en meer in het bijzonder voor een vulmiddel dat bij duurzaam, hoogwaardig beton toegepast dient te worden.This invention relates to a filler for concrete and similar building material, and more particularly for a filler to be used in durable, high-quality concrete.
Beton is een conglomeraat van bijv. zand, grind en gebroken stenen die tezamen aggregaat wordt genoemd, waarbij dit aggregaat in een matrix, Portlandcement of hoogovence-ment, is ingebed. Beton is één van de belangrijkste bouwmaterialen en wordt in grote hoeveelheden gebruikt.Concrete is a conglomerate of, for example, sand, gravel and broken stones which together is called aggregate, this aggregate being embedded in a matrix, Portland cement or blast furnace cement. Concrete is one of the most important building materials and is used in large quantities.
Constructies die met duurzaam, hoogwaardig beton worden gebouwd, zijn steviger, stabieler en kunnen slanker worden uitgevoerd. Dergelijk beton biedt een hogere druk-sterkte, in de buurt van 80-120 Newton/mm2, en duurzaamheid in vergelijking met normaal beton.Structures built with durable, high-quality concrete are firmer, more stable and can be made slimmer. Such concrete offers a higher compressive strength, in the region of 80-120 Newton / mm2, and durability compared to normal concrete.
Op dit moment wordt duurzaam, hoogwaardig beton met als vulmiddel of vulstof microsilica, en dergelijke vervaardigd. Een probleem hierbij is echter dat dergelijke vulstoffen duur zijn, waardoor dit vulmiddel hoogwaardig beton eveneens duur maakt en het derhalve voor veel bouwwerken niet haalbaar is, dit toe te passen.At present, durable, high-quality concrete with filler or filler microsilica and the like is being manufactured. However, a problem here is that such fillers are expensive, so that this filler also makes high-quality concrete expensive and it is therefore not feasible for many buildings to use it.
De onderhavige uitvinding betreft de toepassing van gemicroniseerd poederkoolvliegas voor de vervaardiging van hoogwaardig en duurzaam beton, dat op veel grotere schaal dan thans kan worden toegepast.The present invention relates to the use of micronized pulverized coal fly ash for the production of high-quality and durable concrete, which can be used on a much larger scale than currently.
Volgens een eerste aspect verschaft de onderhavige uitvinding een vulmiddel voor beton of soortgelijk bouwmateriaal, bestaande uit vliegas van deeltjes met relatief kleine diameters, waarbij het vliegas poederkoolvliegas is.In a first aspect, the present invention provides a filler for concrete or similar building material, consisting of fly ash of particles of relatively small diameters, the fly ash being pulverized coal fly ash.
Poederkoolvliegas is een fijn poeder dat hoofdzakelijk bestaat uit bolvormige glasachtige deeltjes. Het poeder bestaat voornamelijk uit Si02 en Al2o3. Poederkoolvliegas wordt in grote hoeveelheden verkregen d.m.v. elektrostatische of mechanische afscheiding van stofdeeltjes uit de rookgassen van met poederkool gestookte ketels. Zulk poederkoolvliegas kan ongeveer honderd maal goedkoper worden vervaardigd, dan het vulmiddel, dat thans bij beton en soortgelijk bouwmateriaal wordt gebruikt. De korrelgrootte van zodanig verkregen poederkoolvliegas ligt tussen 10-500 μπι, met een D (50) van ongeveer 20-50 μιη en een D (90) van ongeveer 80-200 μπι. Dat wil zeggen dat 50 % van de deeltjes een diameter heeft die kleiner is dan 20-50 μιη en dat 90 % van de deeltjes een diameter heeft die kleiner is dan 80-200 μιη.Powdered coal fly ash is a fine powder consisting mainly of spherical glassy particles. The powder mainly consists of Si02 and Al2o3. Pulverized coal fly ash is obtained in large quantities by means of electrostatic or mechanical separation of dust particles from the flue gases of pulverized coal boilers. Such pulverized coal fly ash can be produced about a hundred times cheaper than the filler currently used in concrete and similar building materials. The grain size of pulverized coal fly ash so obtained is between 10-500 µm, with a D (50) of about 20-50 µm and a D (90) of about 80-200 µm. That is, 50% of the particles have a diameter smaller than 20-50 μιη and 90% of the particles have a diameter smaller than 80-200 μιη.
Poederkoolvliegas heeft puzzolane eigenschappen. Dit houdt in dat het materiaal hydraulische eigenschappen ontwikkelt, wanneer het in basisch milieu (pH > 12) wordt geactiveerd. Onder hydraulische eigenschappen wordt verstaan het vermogen van een stof om met water te reageren onder vorming van in water onoplosbare stabiele verbindingen.Powdered coal fly ash has pozzolanic properties. This means that the material develops hydraulic properties when activated in basic environment (pH> 12). Hydraulic properties are understood to mean the ability of a substance to react with water to form water-insoluble stable compounds.
Poederkoolvliegas dient tevens als vulmiddel. Dit houdt in dat het materiaal de holle ruimtes in het beton (poriën) opvult. Bovendien verbetert poederkoolvliegas de verwerkbaarheid van beton.Pulverized coal fly ash also serves as a filler. This means that the material fills the voids in the concrete (pores). In addition, pulverized coal fly ash improves the workability of concrete.
Uit studies is gebleken dat de eigenschappen van beton verder verbeteren naarmate het poederkoolvliegas fijner is. In praktijkproeven werd poederkoolvliegas sterk verkleind, teneinde een superfijn produkt (verkleind poederkoolvliegas) te geven. Dit verkleinde poederkoolvliegas heeft een korrelgrootte tussen 0-5 μιη, en een D (50) tussen 0,5-3 μιη.Studies have shown that the properties of concrete improve the finer the pulverized coal fly ash. In practice tests, pulverized coal fly ash was greatly reduced in order to give a super fine product (pulverized coal char fly ash). This reduced pulverized coal fly ash has a grain size between 0-5 μιη, and a D (50) between 0.5-3 μιη.
Dit verkleinde poederkoolvliegas heeft het voordeel dat het reactiever is, aangezien het specifieke oppervlak en de puzzolaniteit groter zijn. Tevens zijn de vulef-fecteigenschappen van verkleind poederkoolvliegas verbeterd, waardoor de kleinere poriën in het beton thans opgevuld kunnen worden en waardoor de waterbehoefte van de specie minder is. Aldus is een vloeibaar, hoogwaardig beton verkregen, met een hoge aanvangssterkte, dat met weinig verdich-tingsenergie makkelijk te verwerken en te storten is, en dus het voordeel geeft dat de bouwtijd voor een bepaald project, met gebruik van dit beton, aanzienlijk korter is dan bij projecten waarbij zulk beton niet gebruikt wordt.This reduced pulverized coal fly ash has the advantage of being more reactive since the specific surface area and pozzolanity are greater. Also, the filling effect properties of reduced pulverized coal fly ash have been improved, as a result of which the smaller pores in the concrete can now be filled and as a result of which the water requirement of the mortar is less. Thus, a liquid, high-quality concrete with a high initial strength is obtained, which is easy to process and pour with little compaction energy, and thus gives the advantage that the construction time for a particular project, using this concrete, is considerably shorter. than in projects where such concrete is not used.
Volgens een tweede aspect van de uitvinding wordt een werkwijze voor het verkrijgen van een vulstofmiddel voor beton of dergelijk bouwmateriaal verschaft.According to a second aspect of the invention, a method of obtaining a filler for concrete or the like building material is provided.
Micronisatie van poederkoolvliegas kan bij voorkeur plaatsvinden met bekende mechanische maalmethoden, zoals kogelmolen (droge of natte vermaling), jet stream molen (droge vermaling), parelmolen (natte vermaling), vibratiemolen, teneinde een produkt van verkleind poederkoolvliegas te geven, dat zowel in een slurry als in een vaste vorm geleverd kan worden. Dit produkt is goedkoper te vervaardigen dan bekend betonvulmiddel, waardoor duurzaam, hoogwaardig beton met als vulmiddel verkleind poederkoolvliegas op grotere schaal dan thans kan worden toegepast.Micronization of pulverized coal fly ash can preferably take place by known mechanical grinding methods, such as ball mill (dry or wet grinding), jet stream mill (dry grinding), bead mill (wet grinding), vibration mill, to give a product of comminuted pulverized coal fly ash, which can be used in a slurry as can be supplied in a solid form. This product is cheaper to manufacture than known concrete filler, so that durable, high-quality concrete with pulverized coal fly ash reduced as filler can be used on a larger scale than currently.
Verder verschaft de onderhavige uitvinding beton of soortgelijk bouwmateriaal omvattende als vulmiddel poederkoolvliegasdeeltjes die een diameter tussen 0-5 μτα hebben; gebruik van verkleind poederkoolvliegas als vulmiddel bij beton, cement of dergelijke; en een werkwijze voor het verkrijgen van beton of soortgelijk bouwmateriaal omvattende het samenbrengen van poederkoolvliegasdeeltjes met relatief kleine diameters met de basissamenstellingen van het beton of soortgelijk bouwmateriaal.The present invention further provides concrete or similar building material comprising as filler pulverized coal fly ash particles having a diameter between 0-5 μτα; use of comminuted pulverized coal fly ash as a filler for concrete, cement or the like; and a method of obtaining concrete or similar building material comprising bringing together pulverized coal fly ash particles of relatively small diameters with the base compositions of the concrete or similar building material.
De volgende voorbeelden van hoogwaardige betonsa-menstellingen hebben ten doel de onderhavige uitvinding te verduidelijken, maar zijn niet bedoeld het bereik van de uitvinding te beperken.The following examples of high performance concrete compositions are intended to illustrate the present invention, but are not intended to limit the scope of the invention.
VOORBEELDEXAMPLE
Mengsel 1:Mixture 1:
Cementsoort: Portlandcement ACement Type: Portland Cement A
Vulmiddel: Verkleind poederkool vliegasFiller: Reduced pulverized fly ash
Vulmiddelgehalte: 5 % van het cementgehalteFiller content: 5% of the cement content
Mengsel 2:Mixture 2:
Cementsoort: Portlandcement ACement Type: Portland Cement A
Vulmiddel: Verkleind poederkool vliegasFiller: Reduced pulverized fly ash
Vulmiddelgehalte: 10 % van het cementgehalteFiller content: 10% of the cement content
Mengsel 3:Mixture 3:
Cementsoort: Portlandcement ACement Type: Portland Cement A
Vulmiddel: Verkleind poederkool vliegasFiller: Reduced pulverized fly ash
Vulmiddelgehalte: 15 % van het cementgehalteFiller content: 15% of the cement content
Het poederkoolvliegas wordt bijv. verkregen uit de rookgassen van een met poederkool gestookte installatie, waarna het volgens de onderhavige uitvinding wordt verkleind.The pulverized coal fly ash is obtained, for example, from the flue gases of a pulverized coal-fired installation, after which it is reduced according to the present invention.
Claims (9)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL9400564A NL9400564A (en) | 1994-04-08 | 1994-04-08 | Filler for concrete and similar building material. |
| PCT/NL1995/000133 WO1995027685A1 (en) | 1994-04-08 | 1995-04-10 | Filler for concrete and similar building material |
| EP19950913945 EP0758308A1 (en) | 1994-04-08 | 1995-04-10 | Filler for concrete and similar building material |
| JP52626295A JPH09511482A (en) | 1994-04-08 | 1995-04-10 | Fillers for concrete and similar building materials |
| CA 2186248 CA2186248A1 (en) | 1994-04-08 | 1995-04-10 | Filler for concrete and similar building material |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL9400564A NL9400564A (en) | 1994-04-08 | 1994-04-08 | Filler for concrete and similar building material. |
| NL9400564 | 1994-04-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL9400564A true NL9400564A (en) | 1995-11-01 |
Family
ID=19864047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL9400564A NL9400564A (en) | 1994-04-08 | 1994-04-08 | Filler for concrete and similar building material. |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0758308A1 (en) |
| JP (1) | JPH09511482A (en) |
| CA (1) | CA2186248A1 (en) |
| NL (1) | NL9400564A (en) |
| WO (1) | WO1995027685A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09118557A (en) * | 1995-10-25 | 1997-05-06 | Chichibu Onoda Cement Corp | Back-filling material |
| FR2741062B1 (en) * | 1995-11-10 | 1998-05-07 | Electricite De France | GROUND INJECTION IN PARTICULAR UNDER LOW PRESSURE AND PRODUCT FOR ITS PREPARATION |
| FR2744118B1 (en) * | 1996-01-31 | 1998-04-30 | Schlumberger Cie Dowell | FILTRATE CONTROL AGENT FOR OIL WELL CEMENT GROUT OR THE LIKE AND GROUT COMPOSITIONS COMPRISING SAID AGENT |
| NO305896B1 (en) * | 1996-04-17 | 1999-08-16 | Elkem Materials | Method of treating silica-containing material |
| US6242098B1 (en) * | 1999-02-17 | 2001-06-05 | Mineral Resources Technologies, Llc | Method of making mineral filler and pozzolan product from fly ash |
| US6916863B2 (en) | 2000-11-14 | 2005-07-12 | Boral Material Technologies, Inc. | Filler comprising fly ash for use in polymer composites |
| US6695902B2 (en) | 2000-11-14 | 2004-02-24 | Boral Material Technologies, Inc. | Asphalt composites including fly ash fillers or filler blends, methods of making same, and methods for selecting or modifying a fly ash filler for use in asphalt composites |
| ITMI20010736A1 (en) * | 2001-04-05 | 2002-10-05 | Petracem Srl | ADDITIVES FOR BUILDING OBTAINED FROM BY-PRODUCTS OR RESIDUES OF PROCESSING AND PROCESS FOR THEIR PRODUCTION |
| BR112021012604A2 (en) * | 2018-12-28 | 2021-10-05 | Universidade De São Paulo - Usp | MIXING OF FINES, FRESH OR HARDENED CONCRETE, PROCESS OF MIXING AND HOMOGENEIZING SAID MIXING OF FINES AND PRODUCTION PROCESS OF SAID FRESH CONCRETE |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1362372A (en) * | 1972-09-07 | 1974-08-07 | Reid N G | Cement |
| JPH0455350A (en) * | 1990-06-22 | 1992-02-24 | Shikoku Sogo Kenkyusho:Kk | Reinforced concrete |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1466083A (en) * | 1921-05-11 | 1923-08-28 | Cinder Products Corp | Method of making plastic bodies from coal ashes and a plastic body made from such method |
| FR2146699A5 (en) * | 1971-07-22 | 1973-03-02 | Corson G & W H | Quick setting hydraulic cementitious material - made by milling glassy fly ash and lime |
| FR2666576B1 (en) * | 1990-09-11 | 1993-04-02 | Armines | PROCESS FOR IMPROVING THE PERFORMANCE AND DURABILITY OF CONCRETE. |
| JPH055350A (en) * | 1991-06-27 | 1993-01-14 | Doukou Sangyo:Kk | Wall structure for building |
-
1994
- 1994-04-08 NL NL9400564A patent/NL9400564A/en not_active Application Discontinuation
-
1995
- 1995-04-10 CA CA 2186248 patent/CA2186248A1/en not_active Abandoned
- 1995-04-10 EP EP19950913945 patent/EP0758308A1/en not_active Withdrawn
- 1995-04-10 JP JP52626295A patent/JPH09511482A/en active Pending
- 1995-04-10 WO PCT/NL1995/000133 patent/WO1995027685A1/en not_active Application Discontinuation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1362372A (en) * | 1972-09-07 | 1974-08-07 | Reid N G | Cement |
| JPH0455350A (en) * | 1990-06-22 | 1992-02-24 | Shikoku Sogo Kenkyusho:Kk | Reinforced concrete |
Non-Patent Citations (2)
| Title |
|---|
| CHEMICAL ABSTRACTS, vol. 117, no. 4, 27 July 1992, Columbus, Ohio, US; abstract no. 32634k, K. UKITA ET AL: "Steel bar-reinforced concrete with high strenght and improved concrete-steel adhesion" page 399; * |
| K. UKITA ET AL: "Properties of high strength concrete using "Classified Fly Ash"", 4TH CANMET/ACI INT. CONF. ON FLY ASH, SILICA FUME AND NATURAL POZZOLANS IN CONCRETE, May 1992 (1992-05-01), ISTANBUL, pages 37 - 47, XP000255441 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2186248A1 (en) | 1995-10-19 |
| JPH09511482A (en) | 1997-11-18 |
| WO1995027685A1 (en) | 1995-10-19 |
| EP0758308A1 (en) | 1997-02-19 |
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| BV | The patent application has lapsed |