WO2007009408A1 - Mischung zur herstellung von selbstverdichtendem beton - Google Patents
Mischung zur herstellung von selbstverdichtendem beton Download PDFInfo
- Publication number
- WO2007009408A1 WO2007009408A1 PCT/DE2005/001255 DE2005001255W WO2007009408A1 WO 2007009408 A1 WO2007009408 A1 WO 2007009408A1 DE 2005001255 W DE2005001255 W DE 2005001255W WO 2007009408 A1 WO2007009408 A1 WO 2007009408A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- concrete
- mixture
- cement
- grain
- flour
- Prior art date
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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00103—Self-compacting mixtures
-
- 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
Definitions
- the present invention is concerned with a mixture for the production of self-compacting concrete, in particular with a method in which the cement content is set to an acceptable level and then the necessary ingredients are calculated.
- Self-compacting concrete for the production of molded bricks is well known in the art.
- the known mixtures of self-compacting concrete contain, in addition to the usual additives and additives an increased proportion of certain flour grains, such as hard coal fly ash or stone meal of mineral origin as a filler.
- a flow agent for increasing the viscosity of the mixture a flow agent containing melamine and naphthalenesulfonates, polyacrylates and polycarboxylate ethers is added to this mixture.
- a flow agent containing melamine and naphthalenesulfonates, polyacrylates and polycarboxylate ethers is added to this mixture.
- hard coal fly ash or mines of mineral origin are relatively expensive and thus the cost considerably increase the production of a Forr ⁇ stone.
- the present invention is therefore based on the object to provide a mixture or a method for producing a mixture of self-compacting concrete, which is inexpensive and satisfies a high strength requirement.
- the mixture according to the invention for producing a self-compacting concrete is characterized in that the proportion of flour meal is not less than 550 kg / m 3 , wherein a part of the flour grain portion of the mixture is contained in a fine sand whose grain size is not greater than 0.125 mm in diameter.
- the method for producing the abovementioned mixture according to the invention for producing a self-compacting concrete with smooth surfaces is characterized in that the cement content is determined from the predetermined mixing ratios between sand and gravel and water, whose weight is subtracted in kilograms of 550 kg, so that Difference the amount of the flour grain fraction results and then from the cement weight, the amount of the flow agent is determined.
- the cement content of at least 180 kg / m 3 of the mixture is determined, the cement content corresponding to a part of the total proportion of flour meal.
- hydrophobing agent of about 0.75% of the cement weight in order to achieve an impregnating effect.
- dehumidified concrete can be prepared by adding so-called water-reducing admixtures based on sulfonated melamine or naphthalene-formaldehyde polycondensates or lignosulfonates.
- an ordinary route is first taken in which, depending on the region, the aggregates and sands are selected for the mixtures which appear most favorable, taking into account the desired concrete properties.
- the largest grain in the mixture of interest for the intended use of the concrete for the intended use of the concrete.
- a typical largest grain has a diameter of about 16 mm.
- the mixture it is also important for the mixture to choose a continuous grain structure, which lies in the favorable Sieblinien Kunststoff.
- the water content of the mixture can be determined by means of the k value.
- the k value is defined as the value calculated from the number 800 minus the sum of all screen passes in%. From a table, the optimum water content of the mixture can then be taken.
- the sum of all sieve residues in mass% from the individual sieves of the sieve set results from the standard mesh sizes of 0.25; 0.5; 1.0; 2.0; 4.0; 8.0; 16.0; 32.0 and 63.0 mm.
- the mesh size is taken out of 0.125.
- the fine sand increases the proportion of flour particles, which counteracts a segregation of the concrete.
- a flow agent whose weight percent is added to this mixture should not exceed 2.5% of the cement weight.
- the self-compacting concrete is produced with the desired consistency.
- the proportion of flour grain for one cubic meter of concrete should be at least 550 kg or larger in order not to have to resort to stabilizers.
- the proportion of flour meal is between 550 kg and 600 kg (+/- 10%).
- both crushed sand and natural sand can be used.
- the main constituent of these sands are silicates, with the finest components of fine sand being to a large extent silicate dust, which has an additional positive effect on the strength of the concrete by filling the micropores in the concrete.
- a fine sand also has better conveying properties in conveyors such as hard coal fly ash or stone meal.
- These two flours can only be fed to the mixer via a dosing screw and a balance.
- Fine sand can be timed fed to the mixer via a normal conveyor belt. Since the fine sand of mineral origin varies from region to region, the cement to be used is selected according to the geological conditions. The fine sand contributes significantly to the stabilization of the mixture and controls segregation and Sediment istserscheinieux in the concrete mixture.
- a filler of the present invention is such that it is. very fine sands that are able to increase the flour grain content of the concrete and thus its density.
- Suitable fillers are fine sands from gravel pits, sands with a high fines content, crushed sand and dust residues from quarries. These materials are present in sufficient quantity and are currently mixed with other grain mixtures within acceptable limits.
- the cement content of the mixture is believed to at least 180 kg / m 3 of concrete and according to the desired strength determines the final concrete block the water / cement ratio (w / c ratio) of tables (Wals curve).
- w / c ratio water / cement ratio
Landscapes
- 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
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200511003709 DE112005003709A5 (de) | 2005-07-16 | 2005-07-16 | Mischung zur Herstellung von selbstverdichtendem Beton |
PCT/DE2005/001255 WO2007009408A1 (de) | 2005-07-16 | 2005-07-16 | Mischung zur herstellung von selbstverdichtendem beton |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/DE2005/001255 WO2007009408A1 (de) | 2005-07-16 | 2005-07-16 | Mischung zur herstellung von selbstverdichtendem beton |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007009408A1 true WO2007009408A1 (de) | 2007-01-25 |
Family
ID=36128458
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2005/001255 WO2007009408A1 (de) | 2005-07-16 | 2005-07-16 | Mischung zur herstellung von selbstverdichtendem beton |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE112005003709A5 (de) |
WO (1) | WO2007009408A1 (de) |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104402338A (zh) * | 2014-11-20 | 2015-03-11 | 中国铁道科学研究院铁道建筑研究所 | 一种双组份板式无砟轨道自密实混凝土的制备与应用 |
CN104891900A (zh) * | 2015-05-20 | 2015-09-09 | 中民筑友有限公司 | 一种c35低胶材自密实增强混凝土及其制备方法 |
CN105152600A (zh) * | 2015-08-27 | 2015-12-16 | 广西路佳道桥勘察设计有限公司 | 一种防裂的混凝土 |
CN105174842A (zh) * | 2015-09-10 | 2015-12-23 | 安徽芜湖飞琪水泥制品有限公司 | 防水水泥柱及其制备方法 |
CN105174758A (zh) * | 2015-09-15 | 2015-12-23 | 和县浙徽新型材料有限公司 | 一种硼硅玻璃粉改性超细矿渣微粉及其制备方法 |
CN105330248A (zh) * | 2015-11-24 | 2016-02-17 | 国网辽宁省电力有限公司阜新供电公司 | 一种高压变电站防火用材料 |
CN105439502A (zh) * | 2015-10-22 | 2016-03-30 | 中铁四局集团有限公司 | 一种crts ⅲ型板式无砟轨道充填层用自密实混凝土及其制备方法 |
CN105481320A (zh) * | 2015-12-29 | 2016-04-13 | 青岛磊鑫混凝土有限公司 | 采用石屑铁尾矿砂和聚羧酸减水剂配制的贫胶材混凝土 |
CN105776994A (zh) * | 2016-02-03 | 2016-07-20 | 绍兴文理学院 | 一种采用混凝土搅拌站废浆制备的自密实混凝土 |
CN105884254A (zh) * | 2016-03-17 | 2016-08-24 | 孔蕾蕾 | 高强酚醛树脂混凝土的制备方法 |
CN105884236A (zh) * | 2016-04-01 | 2016-08-24 | 太原市第建筑工程集团有限公司 | 一种高强节能环保型减水剂以及制备方法 |
CN105948565A (zh) * | 2016-06-24 | 2016-09-21 | 桂林华越环保科技有限公司 | 一种用于干粉砂浆的塑化增强剂 |
CN106007468A (zh) * | 2016-05-18 | 2016-10-12 | 湖州绿色新材股份有限公司 | 一种混凝土复合增强减水剂及其制备方法 |
CN106007467A (zh) * | 2016-05-18 | 2016-10-12 | 湖州绿色新材股份有限公司 | 一种聚羧酸复合增强减水剂及其制备方法 |
CN106045363A (zh) * | 2016-05-30 | 2016-10-26 | 石家庄市长安育才建材有限公司 | 一种预拌砂浆开放时间调节剂及其制备方法 |
CN106045369A (zh) * | 2016-05-30 | 2016-10-26 | 石家庄市长安育才建材有限公司 | 可提升砂浆早期强度的湿拌砂浆外加剂 |
CN106045372A (zh) * | 2016-06-01 | 2016-10-26 | 石家庄市长安育才建材有限公司 | 用于在混凝土中掺玄武岩石粉的混凝土专用聚羧酸减水剂及其制备方法 |
CN106186886A (zh) * | 2016-07-22 | 2016-12-07 | 四川大学 | 一种深水防裂防腐混凝土及其制备方法 |
CN109761550A (zh) * | 2019-03-15 | 2019-05-17 | 江苏中联铸本混凝土有限公司 | C60自密实混凝土的配方及应用 |
Citations (5)
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EP0838444A1 (de) * | 1996-10-27 | 1998-04-29 | Sika AG, vorm. Kaspar Winkler & Co. | Dispergiermittel für hoch fliessfähigen, selbstkompaktierenden Beton |
WO2000035824A1 (en) * | 1998-12-14 | 2000-06-22 | Dansk Beton Teknik A/S | Concrete containing superplasticiser and palygorskite |
WO2003043947A2 (en) * | 2001-11-23 | 2003-05-30 | Italcementi S.P.A. | High performance concretes that do not contain additions with latent hydraulic activity |
WO2003092974A1 (de) * | 2002-05-06 | 2003-11-13 | Quartz Technologies Gmbh | Plattenförmig gegossener formstein und verfahren zu seiner herstullung |
DE10322242A1 (de) * | 2003-05-17 | 2004-12-02 | Rainer Bottke | Hochviskose Suspension und ein Verfahren zu deren Herstellung sowie deren Verwendung |
-
2005
- 2005-07-16 DE DE200511003709 patent/DE112005003709A5/de not_active Withdrawn
- 2005-07-16 WO PCT/DE2005/001255 patent/WO2007009408A1/de active Application Filing
Patent Citations (5)
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EP0838444A1 (de) * | 1996-10-27 | 1998-04-29 | Sika AG, vorm. Kaspar Winkler & Co. | Dispergiermittel für hoch fliessfähigen, selbstkompaktierenden Beton |
WO2000035824A1 (en) * | 1998-12-14 | 2000-06-22 | Dansk Beton Teknik A/S | Concrete containing superplasticiser and palygorskite |
WO2003043947A2 (en) * | 2001-11-23 | 2003-05-30 | Italcementi S.P.A. | High performance concretes that do not contain additions with latent hydraulic activity |
WO2003092974A1 (de) * | 2002-05-06 | 2003-11-13 | Quartz Technologies Gmbh | Plattenförmig gegossener formstein und verfahren zu seiner herstullung |
DE10322242A1 (de) * | 2003-05-17 | 2004-12-02 | Rainer Bottke | Hochviskose Suspension und ein Verfahren zu deren Herstellung sowie deren Verwendung |
Non-Patent Citations (2)
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BVK - BETONTECHNISCHE MERKBLÄTTER: "Selbstverdichtender Beton (SVB) mit Flugasche", 2001, BUNDESVERBAND KRAFTWERKSNEBENPRODUKTE E.V., DÜSSELDORF, XP002377168 * |
BVK - PRODUKTINFORMATIONEN: "Selbstverdichtende Betone mit Flugasche", 2003, BUNDEVERBAND KRAFTWERKSNEBENPRODUKTE E.V., DÜSSELDORF, XP002377169 * |
Cited By (20)
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---|---|---|---|---|
CN104402338A (zh) * | 2014-11-20 | 2015-03-11 | 中国铁道科学研究院铁道建筑研究所 | 一种双组份板式无砟轨道自密实混凝土的制备与应用 |
CN104891900A (zh) * | 2015-05-20 | 2015-09-09 | 中民筑友有限公司 | 一种c35低胶材自密实增强混凝土及其制备方法 |
CN105152600A (zh) * | 2015-08-27 | 2015-12-16 | 广西路佳道桥勘察设计有限公司 | 一种防裂的混凝土 |
CN105174842A (zh) * | 2015-09-10 | 2015-12-23 | 安徽芜湖飞琪水泥制品有限公司 | 防水水泥柱及其制备方法 |
CN105174758A (zh) * | 2015-09-15 | 2015-12-23 | 和县浙徽新型材料有限公司 | 一种硼硅玻璃粉改性超细矿渣微粉及其制备方法 |
CN105439502A (zh) * | 2015-10-22 | 2016-03-30 | 中铁四局集团有限公司 | 一种crts ⅲ型板式无砟轨道充填层用自密实混凝土及其制备方法 |
CN105330248A (zh) * | 2015-11-24 | 2016-02-17 | 国网辽宁省电力有限公司阜新供电公司 | 一种高压变电站防火用材料 |
CN105481320A (zh) * | 2015-12-29 | 2016-04-13 | 青岛磊鑫混凝土有限公司 | 采用石屑铁尾矿砂和聚羧酸减水剂配制的贫胶材混凝土 |
CN105776994A (zh) * | 2016-02-03 | 2016-07-20 | 绍兴文理学院 | 一种采用混凝土搅拌站废浆制备的自密实混凝土 |
CN105884254A (zh) * | 2016-03-17 | 2016-08-24 | 孔蕾蕾 | 高强酚醛树脂混凝土的制备方法 |
CN105884236A (zh) * | 2016-04-01 | 2016-08-24 | 太原市第建筑工程集团有限公司 | 一种高强节能环保型减水剂以及制备方法 |
CN106007468A (zh) * | 2016-05-18 | 2016-10-12 | 湖州绿色新材股份有限公司 | 一种混凝土复合增强减水剂及其制备方法 |
CN106007467A (zh) * | 2016-05-18 | 2016-10-12 | 湖州绿色新材股份有限公司 | 一种聚羧酸复合增强减水剂及其制备方法 |
CN106045363A (zh) * | 2016-05-30 | 2016-10-26 | 石家庄市长安育才建材有限公司 | 一种预拌砂浆开放时间调节剂及其制备方法 |
CN106045369A (zh) * | 2016-05-30 | 2016-10-26 | 石家庄市长安育才建材有限公司 | 可提升砂浆早期强度的湿拌砂浆外加剂 |
CN106045372A (zh) * | 2016-06-01 | 2016-10-26 | 石家庄市长安育才建材有限公司 | 用于在混凝土中掺玄武岩石粉的混凝土专用聚羧酸减水剂及其制备方法 |
CN105948565A (zh) * | 2016-06-24 | 2016-09-21 | 桂林华越环保科技有限公司 | 一种用于干粉砂浆的塑化增强剂 |
CN106186886A (zh) * | 2016-07-22 | 2016-12-07 | 四川大学 | 一种深水防裂防腐混凝土及其制备方法 |
CN109761550A (zh) * | 2019-03-15 | 2019-05-17 | 江苏中联铸本混凝土有限公司 | C60自密实混凝土的配方及应用 |
CN109761550B (zh) * | 2019-03-15 | 2021-05-11 | 江苏中联铸本混凝土有限公司 | C60自密实混凝土坍落度测定系统 |
Also Published As
Publication number | Publication date |
---|---|
DE112005003709A5 (de) | 2008-06-26 |
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