EP2637830A1 - Durcissement régulé de béton - Google Patents

Durcissement régulé de béton

Info

Publication number
EP2637830A1
EP2637830A1 EP11817425.9A EP11817425A EP2637830A1 EP 2637830 A1 EP2637830 A1 EP 2637830A1 EP 11817425 A EP11817425 A EP 11817425A EP 2637830 A1 EP2637830 A1 EP 2637830A1
Authority
EP
European Patent Office
Prior art keywords
concrete
fluid
temperature
pipe
during
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Withdrawn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
EP11817425.9A
Other languages
German (de)
English (en)
Inventor
Jos Kronemeijer
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.)
Van Hattum En Blankevoort BV
Original Assignee
Van Hattum En Blankevoort BV
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 Van Hattum En Blankevoort BV filed Critical Van Hattum En Blankevoort BV
Publication of EP2637830A1 publication Critical patent/EP2637830A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/06—Solidifying concrete, e.g. by application of vacuum before hardening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
    • B28B11/245—Curing concrete articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
    • B28B17/0063—Control arrangements
    • B28B17/0081—Process control
    • 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
    • C04B40/02—Selection of the hardening environment
    • C04B40/0263—Hardening promoted by a rise in temperature
    • 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
    • C04B2111/34—Non-shrinking or non-cracking materials
    • C04B2111/343—Crack resistant materials

Definitions

  • the invention relates to a specific method for production of a concrete structure and such.
  • the concrete is an initially form free artificial stone like material with mineral cement as binder and mineral aggregates like sand and gravel which after curing offers a high compression strength and possibly contains an internal
  • the temperature can raise too high, e.g. can become 65 to 80 degrees Celsius.
  • the result can be too low concrete compressive strength, delayed sulphate degradation, too high tension stresses and thus crack formation in the cured concrete .
  • NL9500383 discloses a mould provided with a heat exchanger through which a cooling liquid circulates, such that during curing the concrete is externally intermittently cooled and heated. For thick walled structures external cooling is however no solution.
  • a further improvement is desired for controlled curing of a thick walled massive structure of concrete, also in situations wherein the structure is made in parts wherein the concrete for a next concrete part is poured against an earlier made and already cured concrete part.
  • the object is both structures produced on site and/or outdoor, and also structures produced in the factory where the process conditions, among which the application conditions, can be better controlled.
  • the object of the invention is versatile and is, among others, one or more of the following aspects: limiting the peak temperature during curing such that delayed sulphate degradation and strength decrease will not arise; decrease the risk for crack formation and tension stresses in the cured concrete such that structures remain homogeneous and water tight; advancing of the time of initial binding of concrete slurry at cold weather such that preheated concrete slurry shall not be required; speeding curing of fresh concrete after the chemical hydration reaction is mainly finished and the curing rate due to cooling down of the structure to environmental temperatures will slow down naturally; obtaining a more durable, high quality cross section of the concrete structure.
  • a mutually connected system of water/liquid transporting pipes is installed which is embedded into the form free concrete, such that said pipes are embedded into the concrete slurry and through said pipes a heating or cooling liquid or gas like fluid is flown such that the concrete is heated from inside or cooled by this fluid.
  • heating and cooling fluid is sequentially flown through the same embedded pipes or separated embedded pipes, possibly with an intermediate time during which no purposeful cooling or heating fluid flows through said pipes.
  • a heating fluid is supplied to rise the temperature of the concrete from e.g. 5 to 20 degrees Celsius, after which there is some delay time and subsequently cooling fluid is supplied to lower the rising temperature of the concrete or avoid further rising of it, after which e.g. heating fluid is again supplied.
  • step a during and/or immediately after pouring fresh concrete during approximately or at the most or at least 4 or 6 or 8 or 10 or 12 hours heating (fluid hotter than concrete core); step b: during approximately or at the most or at least 40 or 50 or 60 or 70 or 80 hours cooling (fluid colder than concrete core) ;
  • step c during approximately or at the most or at least 80 or 90 or 100 or 120 or 140 hours heating (fluid hotter than concrete core) ;
  • step a two or more of steps a to c follow each other in one of the different feasible successions, preferably first step a, then step b and finally step c.
  • step a 8 hours heating with at least 10 degrees Celsius temperature rise; step b: 60 hours cooling with at least 10 degrees Celsius cooling, step c: 120 hours heating with at least 20 degrees Celsius heating, between step a and b and between step b and c a time without forced cooling or heating during 5 8 hours .
  • the inlet temperature of the heating fluid measures between 20 and 40, such as between 25 and 35, and/or of the cooling fluid between 5 ad 15, such as approximately 10, degrees Celsius ;
  • the forced cooling or heating is carried out by during 30 at least 4 hours or 10 hours or two clear days (48 hours) flowing the fluid through the pipe.
  • the fluid can be flown through the pipes during the time that the concrete is not sufficient cured, e.g. to activate the concrete slurry in its binding early in its 35 chemical reaction, or to avoid that the concrete becomes too hot, followed by again circulating with which the chemical reactions are stimulated again, e.g. to speed the after curing by the supply of external heat to internally of the concrete slurry, or for decreasing the risk for crack formation by decreasing the temperature difference in the mass cross section or between the already cured, cooled part and the freshly concreted against part of an in parts produced concrete structure .
  • temperature sensors are used with which the temperature of the concrete is measured, on the basis of which measured data the flowing of the fluid through the pipe and the temperature (e.g. the inlet temperature, i.e. with which the fluid enters the embedded pipe) of the fluid is controlled.
  • the temperature and flow of the fluid are preferably computer controlled and the sensors are connected to the same control unit.
  • one or more temperature sensors are embedded into the concrete, e.g. by locating such a sensor into the mould after which the form free concrete is poured into the mould such that the sensor is embedded into the concrete. By embedding more than one sensor a temperature gradient can be measured, by way of which the heating and cooling can be optimised.
  • the heating fluid has preferably a temperature between approximately 20 and 40, more preferably between approximately 25 and 35 degrees Celsius.
  • the cooling fluid has preferably a temperature between approximately 5 and 15, such as approximately 10 degrees Celsius.
  • the pipe is preferably made of steel or polymer, such as polyethylene .
  • a pump In an example outside the mould there are a pump, a supply bin, a cooling and heating unit and a computer controlled control unit .
  • the computer runs a program and starts and stops on the basis of that the pump and the cooling and heating unit, wherein the program makes use of the by the temperature sensors supplied signals.
  • the pump circulates the fluid between the supply bin and the embedded pipe. Depending from cooling or heating the concrete, the cooling or heating unit is engaged. Dependent from the with the sensors determined temperature gradient, possibly corrected by environmental temperature, through the program the flow speed and the inlet temperature of the fluid are automatically set.
  • the computer could be part of a network, such that logging in to the computer from a remote location can be possible to enter control data or request for measured data .

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)

Abstract

L'invention concerne un procédé de production d'un composant de béton de ciment de préférence renforcé dans un moule, de préférence une structure massive à parois épaisses se trouvant à l'extérieur, un tuyau étant situé dans le moule et le béton s'écoulant librement étant versé sur lui de manière telle que ledit tuyau est noyé dans le béton, de préférence au moins 20 centimètres sous la surface du béton, et un liquide de chauffage ou de refroidissement ou un fluide analogue à un gaz s'écoulant à travers ledit tuyau de manière telle que le béton est chauffé ou refroidi de l'intérieur et de manière régulée par le fluide pendant que le béton durcit jusqu'à sa solidité finale.
EP11817425.9A 2010-11-08 2011-11-08 Durcissement régulé de béton Withdrawn EP2637830A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL2005653 2010-11-08
NL2007738A NL2007738C2 (nl) 2010-11-08 2011-11-07 Werkwijze voor het gecontroleerd beheersen van verharding van jong beton in productiesituaties.
PCT/NL2011/050765 WO2012081975A1 (fr) 2010-11-08 2011-11-08 Durcissement régulé de béton

Publications (1)

Publication Number Publication Date
EP2637830A1 true EP2637830A1 (fr) 2013-09-18

Family

ID=45420918

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11817425.9A Withdrawn EP2637830A1 (fr) 2010-11-08 2011-11-08 Durcissement régulé de béton

Country Status (3)

Country Link
EP (1) EP2637830A1 (fr)
NL (1) NL2007738C2 (fr)
WO (1) WO2012081975A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111098403A (zh) * 2019-12-19 2020-05-05 安徽省海仁材料科技有限公司 一种可回收水化热量的混凝土管道浇筑生产模具

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3033514B1 (fr) * 2015-03-12 2017-12-01 Conseil Service Investissements Procede de moulage d'elements tubulaires en materiau comportant du ciment et pieu ainsi obtenu
US10076854B2 (en) 2015-03-24 2018-09-18 Qatar University Aggregate cooling for hot weather concreting
JP6909581B2 (ja) * 2017-01-17 2021-07-28 大成建設株式会社 コンクリート部材の施工方法
JP7049592B2 (ja) * 2017-11-02 2022-04-07 住友大阪セメント株式会社 セメント成形体の養生方法
CA3128243A1 (fr) * 2019-06-20 2020-12-24 Swiss Investments Australia Pty Ltd Procede de production de produits de batiment prefabriques
CN112982996A (zh) * 2021-03-02 2021-06-18 中铁建工集团有限公司 大体积混凝土降温装置及工艺

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997035071A1 (fr) * 1996-03-20 1997-09-25 Mark Bruckelmyer Dispositif et procede servant a durcir du beton

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3644532A1 (de) * 1986-03-10 1987-09-17 Hochtief Ag Hoch Tiefbauten Verfahren zur herstellung einer tunnelauskleidung aus auskleidungsbeton und vorrichtung fuer die durchfuehrung des verfahrens
NL194242C (nl) 1995-02-27 2001-10-02 Hollandsche Betongroep Nv Bekistingelement.
JP2006008431A (ja) * 2004-06-23 2006-01-12 Abekogyosho Co Ltd コンクリートの養生方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997035071A1 (fr) * 1996-03-20 1997-09-25 Mark Bruckelmyer Dispositif et procede servant a durcir du beton

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111098403A (zh) * 2019-12-19 2020-05-05 安徽省海仁材料科技有限公司 一种可回收水化热量的混凝土管道浇筑生产模具
CN111098403B (zh) * 2019-12-19 2021-08-27 安徽匠桥财务咨询服务有限公司 一种可回收水化热量的混凝土管道浇筑生产模具

Also Published As

Publication number Publication date
NL2007738C2 (nl) 2012-06-27
WO2012081975A1 (fr) 2012-06-21
NL2007738A (nl) 2012-05-10

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