EP0843655A1 - Procede de durcissement rapide de beton leger - Google Patents

Procede de durcissement rapide de beton leger

Info

Publication number
EP0843655A1
EP0843655A1 EP96929118A EP96929118A EP0843655A1 EP 0843655 A1 EP0843655 A1 EP 0843655A1 EP 96929118 A EP96929118 A EP 96929118A EP 96929118 A EP96929118 A EP 96929118A EP 0843655 A1 EP0843655 A1 EP 0843655A1
Authority
EP
European Patent Office
Prior art keywords
lightweight concrete
water glass
water
concrete
layer
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.)
Ceased
Application number
EP96929118A
Other languages
German (de)
English (en)
Inventor
Markus Stracke
Matthias Stracke
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.)
ALPHA BREVET SA
Original Assignee
ALPHA BREVET SA
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 ALPHA BREVET SA filed Critical ALPHA BREVET SA
Publication of EP0843655A1 publication Critical patent/EP0843655A1/fr
Ceased 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • 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
    • C04B28/24—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 alkyl, ammonium or metal silicates; containing silica sols
    • C04B28/26—Silicates of the alkali metals
    • 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
    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/5076—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with masses bonded by inorganic cements
    • C04B41/5089—Silica sols, alkyl, ammonium or alkali metal silicate 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
    • C04B41/61—Coating or impregnation
    • C04B41/65—Coating or impregnation with inorganic materials
    • C04B41/68—Silicic acid; Silicates
    • 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
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/10—Accelerators; Activators
    • 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
    • C04B2111/00663—Uses not provided for elsewhere in C04B2111/00 as filling material for cavities or the like
    • 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
    • C04B2111/60—Flooring materials
    • C04B2111/62—Self-levelling compositions

Definitions

  • the invention relates to a method for the rapid hardening of lightweight concrete with additives, e.g. EPS, polystyrene, expanded clay, pumice or similar
  • additives e.g. EPS, polystyrene, expanded clay, pumice or similar
  • the object of the invention is therefore to provide a method of the type mentioned at the outset with which an acceleration of the curing process is achieved, so that a substantial reduction in the waiting time required for the follow-up of the construction activity is achieved.
  • this is achieved in that a hardening liquid consisting of water glass or mixtures of water glass and water is applied to or in the light concrete layer to be hardened.
  • the curing time for the lightweight concrete can be significantly reduced without the need for chemicals or other mixing processes.
  • the lightweight concrete is applied as a leveling layer and / or as a heat or sound insulation layer on a substrate.
  • Grain size between 5 and 20mm, preferably between 5 and 10mm.
  • the level compensating lightweight concrete layer has a very open-pored structure, e.g. you choose Grain sizes of up to 5 or 10 mm or even larger, the bulk densities of EPS lightweight concrete being selectable between 150 to 400 kg / ⁇ rr according to a variant of the invention.
  • Aggregate grains is distributed, and that the tool factor is between 0.25 and 0.35.
  • Sodium water glass or potassium water glass can also be used as the water glass.
  • Curing liquid is sprayed onto the lightweight concrete surface.
  • the hardening liquid is distributed under pressure by means of spray lances which are pushed into the middle of the lightweight concrete layer.
  • Hose lines for air drainage are also laid.
  • Drainage lines are guided and then drained off.
  • the mixing ratio of water to water glass is chosen 2: 1, 1: 1 or 2: 1.
  • Light concrete leveling layer sprayed "quick hardening liquid” such as water glass or mixtures of water with water glass, e.g. 1 part water, 2 parts water glass, or
  • the lightweight concrete level compensation such as EPS concrete
  • EPS concrete first mixed with "lack of water”
  • the added cement content is evenly distributed around the aggregate grains (EPS particles, possibly also other materials such as sand, brick split, or the like).
  • This "installation” is almost as if it were “sand”, so dry can be mixed, e.g. with tool factor 0.25-0.35. This is particularly useful for thin installation layers.
  • the material is then sprayed on site (e.g. watering can) or better spraying device with air pressure sprayers similar to the "painting tool”. Due to the lack of water during the first mixing, this material, which is not even properly moist, absorbs the accelerating liquid "greedily”, and hardens even earlier than those mixtures which are mixed with "normal” Wz factor water.
  • the extreme porosity of the lightweight concrete then selected Larger particle sizes, for example 6-20 mm
  • successfully porous hose lines of approximately 15 to 25 mm in diameter or even smaller (or larger in the case of large bed thicknesses of the lightweight concrete) are inserted into the lightweight concrete mass at a lateral distance of approximately 1.5 meters .
  • the hose ends should be able to be connected to the outside air at suitable points. Due to the extremely loose structure of the lightweight concrete, residual moisture can be routed horizontally within the structure to the porous air drainage lines in a short time and then disappear.
  • the method according to the invention is also suitable for other purposes of rapid hardening of surfaces or through-and-through hardening of lightweight concrete. Because there was the unexpected fact that even with spray lances, which are pushed into the middle of the layer, for example with meter-thick lightweight concrete, and then "distribute" the hardener liquid under pressure (eg 2 bar or more) - also there the internal hardening in every position of the Structure is possible. For example, large-scale consolidation can be made possible as a safeguard against natural forces (dams, risk of falling rocks, tunnel protection ).
  • premixed lightweight concrete materials which are mixed with retarding liquids for the transport time expenditure (for example, for a delay effect of up to 24 hours), can be transported in sacks, big bags, or loosely on the truck over long distances, in order to then be transported Bring the place to solidification or hardening within a few minutes to the extent that the securing purpose is fulfilled.
  • the "high" concentration of retarder added to the lightweight concrete mix has no adverse effects on the accelerability with, for example, water glass or water glass-water emulsions.
  • the rapid hardening processes according to the invention can also be used successfully, for example, in prefabricated house construction, so that assembly line production can be carried out undisturbed.
  • the gaps in the interior of wooden bar constructions are filled with EPS lightweight concrete (which have lambda values of 0.05 W / mK to 0.08 W / mK and are fire-proof) and during the manufacture of the wall or ceiling elements
  • EPS lightweight concrete which have lambda values of 0.05 W / mK to 0.08 W / mK and are fire-proof

Landscapes

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

Abstract

Selon ce procédé de durcissement rapide de béton léger contenant des granulats légers en EPS, Styropor, argile expansée, pierre ponce ou similaires, on arrose la couche de béton léger d'un liquide de durcissement constitué de verre soluble ou d'un mélange de verre soluble et d'eau ou on injecte ce liquide de durcissement dans la couche de béton léger.
EP96929118A 1995-08-09 1996-08-09 Procede de durcissement rapide de beton leger Ceased EP0843655A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT1356/95 1995-08-09
AT135695 1995-08-09
PCT/AT1996/000143 WO1997006120A1 (fr) 1995-08-09 1996-08-09 Procede de durcissement rapide de beton leger

Publications (1)

Publication Number Publication Date
EP0843655A1 true EP0843655A1 (fr) 1998-05-27

Family

ID=3512124

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96929118A Ceased EP0843655A1 (fr) 1995-08-09 1996-08-09 Procede de durcissement rapide de beton leger

Country Status (3)

Country Link
EP (1) EP0843655A1 (fr)
AU (1) AU6865096A (fr)
WO (1) WO1997006120A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997032827A1 (fr) * 1996-03-04 1997-09-12 Regina Wetter Procede de realisation d'infrastructures de sols
EP0968978A1 (fr) * 1998-05-26 2000-01-05 Fuji Chemical Co., Ltd. Procédé de préparation d'une structure cimentaire et béton utilisé
US6676862B2 (en) 1999-09-15 2004-01-13 Advanced Building Systems, Inc. Method for forming lightweight concrete block
AT509521A3 (de) * 2010-03-10 2012-01-15 Markus Ing Stracke Verfahren zur herstellung von leichtbeton - elementen
FR2961807B1 (fr) * 2010-06-24 2013-11-01 Lafarge Sa Procede de transport d'une composition hydraulique
DE102019005107A1 (de) 2019-07-23 2021-01-28 Agemos AG Betonersatz mit hervorragender Festigkeit und Temperaturbeständigkeit
EP4029843A1 (fr) 2021-01-19 2022-07-20 Agemos AG Marchandises durables
DE102021117771A1 (de) * 2021-07-09 2023-01-12 Fels-Werke Gmbh Kimmschichtmörtel mit Abdichtfunktion

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3695906A (en) * 1971-05-28 1972-10-03 Ray F Mccune Concrete hardening method and composition
DE2456055A1 (de) * 1974-11-27 1976-08-12 Johannes Heyen Verfahren zum abdichten von etagenbetondecken

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9706120A1 *

Also Published As

Publication number Publication date
AU6865096A (en) 1997-03-05
WO1997006120A1 (fr) 1997-02-20

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Legal Events

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