EP2118040A2 - Mélange de substances pouvant être utilisé notamment en tant que granulat dans du béton - Google Patents

Mélange de substances pouvant être utilisé notamment en tant que granulat dans du béton

Info

Publication number
EP2118040A2
EP2118040A2 EP08708497A EP08708497A EP2118040A2 EP 2118040 A2 EP2118040 A2 EP 2118040A2 EP 08708497 A EP08708497 A EP 08708497A EP 08708497 A EP08708497 A EP 08708497A EP 2118040 A2 EP2118040 A2 EP 2118040A2
Authority
EP
European Patent Office
Prior art keywords
mixture
concrete
cement
preservative
substances
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.)
Withdrawn
Application number
EP08708497A
Other languages
German (de)
English (en)
Inventor
Oliver THÖNE
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.)
THOENE, OLIVER
Original Assignee
Bauer Wulf Dr
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 Bauer Wulf Dr filed Critical Bauer Wulf Dr
Publication of EP2118040A2 publication Critical patent/EP2118040A2/fr
Withdrawn legal-status Critical Current

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
    • 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
    • C04B40/0042—Powdery mixtures
    • 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
    • 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 relates to a mixture of substances for curing building materials, in particular concrete.
  • bitumen The most common road building material is bitumen. Bitumen has the advantage that it is flexible enough to go with the ground something, so that the roads built with it get no cracks and / or edge projections. In addition, a bitumen coating proves to be extremely resistant to abrasion, so that roads with a bituminous coating last a long time.
  • bitumen is its high price and lack of availability of this petroleum derivative in many parts of the world. Additionally, because of its lack of heat resistance, bitumen is a non-road building material in many countries of the southern and eastern hemisphere.
  • bitumen road construction material An alternative to bitumen road construction material is the concrete. Concrete is a much cheaper material than bitumen and the materials needed for a concrete mix cement, water and a filler such as sand are at least more readily available from bitumen in much of the world. In addition, concrete does not soften even in extreme sunlight.
  • the solidification of the substrate is a very complex process, in which usually the grown substrate must be replaced by a compressible material such as sand.
  • a mixture of substances is known, which is added to a concrete mixture in order to increase its flexibility and reduce its shrinkage during curing.
  • the substance mixture consists mainly of two components, of which one component consists predominantly of chloride salts and the other component is an alkali metal silicate (water glass), preferably sodium silicate.
  • the two components are premixed and then added to the concrete mix of cement, water and sand for use in road construction, for example.
  • DE 19649478 A1 describes an aqueous dispersion which can be used as aggregate for concrete mixtures.
  • the concrete mixture described therein is preferably prepared by mixing cement, filler and optionally water with each other and then adding the dispersion according to the invention. Any other order of mixing the components is also possible.
  • this dispersion is very advantageous because it is harmless to the environment and harmless to humans, increases the flexibility of the concrete and reduces the shrinkage of the concrete mix on curing.
  • the disadvantage is that a dispersion has a relatively high mass due to the water content and thus leads to high transport costs.
  • the product described therein is not suitable for admixture in cement, since this would only be possible if it would also be a dry, pulverförniges material.
  • the mixture should continue to be suitable as a cement additive or as a mixture for other binders.
  • the composition should have the best possible transport capabilities and it should allow the fillers are used in the concrete mix, which were previously considered cement poisons.
  • This mixture is dry mixed as a powder.
  • the water-containing locust bean gum As a viscous thickener, the water-containing locust bean gum has proved favorable.
  • Xanthan Gum and locust bean gum have synergistic effects, as they both have a viscous effect on the concrete to be mixed with the excipient.
  • the plasticizer preferably polycarboxylic ether (as a powder)
  • the concrete mix is very thin and free-flowing.
  • Xanthan Gum and locust bean gum can also be replaced with methylcellulose.
  • the cement-compatible resin is also added as a powder (dispersion powder).
  • Hostapur OSB has proven to be suitable as a foaming agent because it forms micro-pores.
  • hardening accelerator it is possible to use all suitable accelerators, preferably calcium formate or calcium chloride.
  • alumina-enamel cement can also be used as the hardening accelerator since this also leads to an exothermic reaction which accelerates the normal cement in the setting. Thor Preservative is especially good for preservatives.
  • Another object of the invention is a concrete mixture containing: a. 0.01-0.5 kg, preferably 0.05-0.1 kg of the mixture of substances according to the invention per kg of cement, b. Cement, c. Filler d optionally water, the concrete mixture components are used in conventional amounts.
  • the concrete mixture according to the invention is preferably prepared by mixing together the cement, the filler and optionally the water and then adding the substance mixture according to the invention. Any other order of mixing the components is also possible.
  • the concrete mixture according to the invention is viscous, so it is stable viscous and not flowable, as long as no kinetic energy is added.
  • the concrete mixture is pumped or shaken into a formwork, it becomes increasingly flowable and thus does not form any holes that reduce the flexural and compressive strength or cause optical disadvantages.
  • the concrete of the invention has a very good water retention capacity, what vertext that the concrete reaches optimum hardness even in hot and very dry conditions.
  • xanthan gum and locust bean gum prevent the formation of water ice crystals to -200 0 C, so that the concrete can be processed even at temperatures below zero . Even at very low temperatures, the concrete remains physically stable, does not shrink and does not become brittle or brittle.
  • any material can be used that is available in the field of construction site or field of application.
  • gravel, earth, sand or even asphalt are suitable.
  • the concrete mixture according to the invention is mixed on site, after addition of water, the mixture is straightened and compacted with so-called Vibprowalzen. After a very short curing time, a wear layer of asphalt can then be applied as needed, but it can also be dispensed with, for example for farm roads.
  • Xanthan Gum and locust bean gum can also be replaced with methylcellulose.
  • Another object of the invention is the production of building materials, preferably plates or stones, from the concrete mixture according to the invention.
  • the concrete mixture according to the invention can be used for any type of concrete construction, preferably for road, road construction and mounting, so that a further subject of the invention, this use and the corresponding concrete structures, preferably road, ways, and other mounting pads or structures ,
  • a concrete mixture only has to be added to an adjuvant which does not have to be premixed in order to make the concrete more flexible to reduce the shrinkage during curing. This reduces freight and storage costs.
  • the substance mixture according to the invention is not classified as a hazardous substance, so that it can be processed without protective measures.
  • the mixture according to the invention is harmless to the environment, a concrete mixture according to the invention hardens very quickly, with the mixture of substances according to the invention, it is possible to produce a concrete mix with fillers, which were previously considered as cement poisons, as a filler in the concrete mix, the usual sands, but beyond also any type of soil, contaminated or uncontaminated, and / or materials such as bauxite, latent, volcanic ash, pumice and ash from incineration plants are used, with the concrete mixture according to the invention, building materials and concrete components of any kind, preferably road and pavement can be prepared by excavation of the worksite and / or sand or soil-like materials available in the construction site area are used as filler in the concrete mix instead of the usual fillers.
  • composition of the invention composed as follows:
  • the concrete mixture according to the invention and the conventional concrete mixture were respectively poured into wooden molds measuring 50 ⁇ 20 ⁇ 1 cm (length, width, depth), in which the concrete mixture was cured in each case.
  • Each 10 plates were made.
  • the concrete mixtures were each intimately premixed in a concrete mixer and then mixed in each case in a vat with 0.1 Lier of the mixture according to Example 1 and poured into the molds described in Example 1 into plates in which cured the concrete mixtures.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

La présente invention concerne un mélange de substances destiné à des matériaux de construction durcissables, en particulier du béton. Ce mélange contient : a) 1-8 % de gomme de xanthanne; b) 1-6 % d'épaississant à viscosité apparente contenant de l'eau; c) 2-10 % de diluent; d) 20-50 % de résine synthétique compatible avec le ciment; e) 0,1-3 % d'agent moussant; f) 30-70 % d'accélérateur de durcissement; g) 0,2-4 % d'agent de conservation, la somme des pourcentages de tous les éléments du mélange de substances prenant la valeur de 100 % en poids.
EP08708497A 2007-02-12 2008-01-31 Mélange de substances pouvant être utilisé notamment en tant que granulat dans du béton Withdrawn EP2118040A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007007421.4A DE102007007421B4 (de) 2007-02-12 2007-02-12 Stoffgemisch verwendbar als Zuschlagmittel für Beton
PCT/EP2008/051184 WO2008098843A2 (fr) 2007-02-12 2008-01-31 Mélange de substances pouvant être utilisé notamment en tant que granulat dans du béton

Publications (1)

Publication Number Publication Date
EP2118040A2 true EP2118040A2 (fr) 2009-11-18

Family

ID=39597668

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08708497A Withdrawn EP2118040A2 (fr) 2007-02-12 2008-01-31 Mélange de substances pouvant être utilisé notamment en tant que granulat dans du béton

Country Status (5)

Country Link
EP (1) EP2118040A2 (fr)
DE (1) DE102007007421B4 (fr)
RU (1) RU2433096C2 (fr)
UA (1) UA93948C2 (fr)
WO (1) WO2008098843A2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008038904A1 (de) * 2008-08-13 2010-02-18 Bauer, Wulf, Dr. Dispersion für den Einsatz in einer Betonmischung
RU2678286C2 (ru) * 2017-03-23 2019-01-24 Федеральное государственное бюджетное образовательное учреждение высшего образования "Кабардино-Балкарский государственный университет им. Х.М. Бербекова" (КБГУ) Сырьевая смесь для изготовления пенобетона
RU2646925C1 (ru) * 2017-03-27 2018-03-12 Федеральное государственное бюджетное образовательное учреждение высшего образования "Петербургский государственный университет путей сообщения Императора Александра I" Комплексная добавка для пенобетонной смеси
RU2729086C1 (ru) * 2019-10-21 2020-08-04 Федеральное государственное бюджетное образовательное учреждение высшего образования "Воронежский государственный технический университет" Двухфазная смесь на основе цемента для композитов в технологии строительной 3D-печати
CN113319996B (zh) * 2021-05-26 2022-08-26 付中 水泥复合板的生产方法和多层复合水泥板材的生产方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050092209A1 (en) * 2003-10-30 2005-05-05 Garner Van D. Lime-free admixture compositions for hydraulic cements and methods thereof

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3628902A1 (de) * 1986-08-26 1988-03-03 Bayer Ag Kationische kautschuklatices, verfahren zu ihrer herstellung und ihre verwendung
JPH07110775B2 (ja) * 1987-06-30 1995-11-29 昭和電工株式会社 弾性モルタル組成物
AU666706B2 (en) * 1992-03-11 1996-02-22 Gerhard Schilling Flexibility enhancement agent and method of use
DE19649478A1 (de) * 1995-12-22 1997-06-26 Bauer Wulf Dr Dispersionen und deren Einsatz in Betonmischungen
DE19607814A1 (de) * 1996-03-01 1997-09-04 Eckart Standard Bronzepulver Porenbildendes Additiv für Mörtel und Putze
CN1295181C (zh) * 2005-04-30 2007-01-17 王衡 一种高强弹性混凝土的复合添加剂

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050092209A1 (en) * 2003-10-30 2005-05-05 Garner Van D. Lime-free admixture compositions for hydraulic cements and methods thereof

Also Published As

Publication number Publication date
UA93948C2 (uk) 2011-03-25
WO2008098843A2 (fr) 2008-08-21
DE102007007421B4 (de) 2017-05-04
WO2008098843A3 (fr) 2008-10-16
DE102007007421A1 (de) 2008-08-14
RU2433096C2 (ru) 2011-11-10
RU2009134179A (ru) 2011-03-20

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