EP0625621B1 - Méthode pour la pose de dalles en béton - Google Patents

Méthode pour la pose de dalles en béton Download PDF

Info

Publication number
EP0625621B1
EP0625621B1 EP94107462A EP94107462A EP0625621B1 EP 0625621 B1 EP0625621 B1 EP 0625621B1 EP 94107462 A EP94107462 A EP 94107462A EP 94107462 A EP94107462 A EP 94107462A EP 0625621 B1 EP0625621 B1 EP 0625621B1
Authority
EP
European Patent Office
Prior art keywords
concrete
temperature
supporting layer
base layer
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.)
Expired - Lifetime
Application number
EP94107462A
Other languages
German (de)
English (en)
Other versions
EP0625621A1 (fr
Inventor
Alwin Merz
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0625621A1 publication Critical patent/EP0625621A1/fr
Application granted granted Critical
Publication of EP0625621B1 publication Critical patent/EP0625621B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C7/00—Coherent pavings made in situ
    • E01C7/08—Coherent pavings made in situ made of road-metal and binders
    • E01C7/10—Coherent pavings made in situ made of road-metal and binders of road-metal and cement or like binders
    • E01C7/14—Concrete paving
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/03—Arrangements for curing paving; Devices for applying curing means; Devices for laying prefabricated underlay, e.g. sheets, membranes; Protecting paving under construction or while curing, e.g. use of tents
    • 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

Definitions

  • the invention relates to a method for installing concrete slabs by applying flowable or moist concrete to a base layer consisting of a sand and / or gravel layer.
  • the hydration (chemical setting process of the cement) generates heat, which can be 20 ° C to 30 ° C higher than the manufacturing temperature.
  • the concrete slab tends to expand, but is prevented from expanding due to the friction on the base layer and thus experiences harmless compressive stresses.
  • the highest temperature of the heat of hydration is reached, whereby the concrete slab slowly cools down again from this point in time and now strives to contract or shorten. This shortening process is counteracted by the frictional forces on the base layer and creates tensile stresses in the concrete slab which, if exceeded, lead to undesirable, sometimes even unauthorized cracks.
  • the present invention has for its object to provide a method for installing concrete slabs by applying flowable or moist concrete to a base layer consisting of a sand and / or gravel layer, with which not only better quality concrete slabs can be produced, but with which also eliminates the incised dummy joints provided in the previous methods.
  • the solution to the problem is a method according to claim 1, which is characterized in that the The temperature of the concrete which heats up when the concrete slab is installed on the base layer is maintained at approximately the same level as the temperature of the base layer by increasing the heat flow from the concrete towards the base layer by increasing the thermal conductivity of the base layer by using the base layer with a liquid, in particular water, can be soaked and its thermal conductivity is increased by soaking with water at a temperature of approximately 12 ° C to 15 ° C.
  • the measure according to the invention that the temperature of the warming concrete is deliberately kept at the temperature of the base layer by soaking the base layer with water at approximately 12 ° C. to 15 ° C., the great advantage that large concrete slabs are produced can, without providing dummy joints between them.
  • the amount of water required to impregnate the base layer per square meter of the surface of the base layer is approximately 20 l to 30 l at a temperature which corresponds approximately to the temperature of the tap water.
  • the outflow area of the base layer can also be increased in a modified embodiment of the method according to the invention by reducing the grain size of the base layer compared to the sieve line of normal gravel.
  • a concrete slab with a total length lo is assumed, which ideally has its holding or fixed point Fi in its center, ie at lo / 2.
  • ⁇ l means shortening the plate at a temperature difference ⁇ T.
  • ⁇ t represents the thermal expansion coefficient of concrete, which is ⁇ 0.00001 m per meter of slab length and 1 degree temperature difference.
  • a reduction in the concrete temperature to is e.g. B. to achieve by using suitable cements with low heat generation, but which are not available regionally everywhere. However, there are still temperature differences that can lead to cracks in the concrete slab even if carefully executed.
  • the invention is based on the consideration of what measures can be taken to achieve temperature equality between the concrete and base course, whereby the heating concrete is given the possibility of heat dissipation to stay at a low temperature level towards the base course.
  • A is the outflow area available for heat discharge.
  • the transfer area A can also be influenced, with a larger transfer area also allowing a greater heat outflow from the concrete into the base layer.
  • polyethylene films are laid out on the base layer before the concreting process.
  • the transfer area is considerably larger than 1 m 2 , because the specific surface area becomes smaller and smaller and the size of the base layer becomes larger and possibly even a multiple of 1 m 2 can be.
  • the desirable increase in the thermal conductivity ⁇ is achieved by impregnating the gravel or sand base layer with water, this measure simultaneously increasing the temperature difference between the concrete temperature to and the base layer temperature tu, which promotes the outflow of heat.
  • the average temperature of a concrete slab in the outside area is approx. 22 degrees C, in the inside area approx. 16 degrees C. Accordingly, the aim must be to control the heat flow Q via the values to / tu, ⁇ and A so that the concrete temperatures are as close as possible from approx. 22 degrees C or approx 16 degrees C.
  • the water temperature can be about 12 degrees C to 15 degrees C, which corresponds approximately to the tap water.
  • the amount of water per square meter is approximately 20 l to 30 l.
  • the reinforcement of approx. 9 to 14 kg / m 2 which is omitted when the slabs are correctly dimensioned, lies at the top and bottom and limits cracks, resulting in savings of DM 16 to DM 25 / m 2 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Road Paving Structures (AREA)
  • Sewage (AREA)
  • Road Signs Or Road Markings (AREA)

Claims (3)

  1. Procédé pour la pose de dalles en béton en épandant du béton coulant ou humide sur une couche porteuse constituée d'une couche de sable et/ou d'une couche de gravier, caractérisé en ce que la température du béton, qui s'échauffe sur la couche porteuse lors de la pose de la dalle en béton, est maintenue approximativement au même niveau que la température de la couche porteuse par le fait que la déperdition de chaleur du béton en direction de la couche porteuse est augmentée en accroissant la conductibilité thermique de la couche porteuse, par le fait que la couche porteuse peut être imprégnée d'un liquide, notamment d'eau, et que sa conductibilité thermique est augmentée en l'imprégnant d'eau à une température d'environ 12° C à 15° C.
  2. Procédé selon la revendication 1, caractérisé en ce que la quantité d'eau qui est nécessaire pour l'imprégnation de la couche porteuse est égale à environ 20 à 30 litres par mètre carré de surface de la couche porteuse.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que la surface d'évacuation (A) de la couche porteuse qui est disponible pour la déperdition de chaleur (Q) est augmentée par le fait que la taille granulométrique de la couche porteuse est diminuée par rapport à la courbe granulométrique de gravier normal.
EP94107462A 1993-05-21 1994-05-13 Méthode pour la pose de dalles en béton Expired - Lifetime EP0625621B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4317070A DE4317070A1 (de) 1993-05-21 1993-05-21 Verfahren zum Einbau von Betonplatten
DE4317070 1993-05-21

Publications (2)

Publication Number Publication Date
EP0625621A1 EP0625621A1 (fr) 1994-11-23
EP0625621B1 true EP0625621B1 (fr) 1997-01-15

Family

ID=6488674

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94107462A Expired - Lifetime EP0625621B1 (fr) 1993-05-21 1994-05-13 Méthode pour la pose de dalles en béton

Country Status (3)

Country Link
EP (1) EP0625621B1 (fr)
AT (1) ATE147818T1 (fr)
DE (2) DE4317070A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI681048B (zh) * 2017-09-15 2020-01-01 德商蒂森克虜伯工業解決方案股份有限公司 用於生產焦炭的包含具圍繞其之環繞流動之環形流動路徑的焦爐裝置、焦爐裝置的操作方法及其控制裝置與用途

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2331311A (en) * 1939-02-09 1943-10-12 Raymond E Davis Concrete construction process
SE342065B (fr) * 1969-07-04 1972-01-24 G Olsson

Also Published As

Publication number Publication date
DE59401573D1 (de) 1997-02-27
EP0625621A1 (fr) 1994-11-23
ATE147818T1 (de) 1997-02-15
DE4317070A1 (de) 1994-11-24

Similar Documents

Publication Publication Date Title
EP0625621B1 (fr) Méthode pour la pose de dalles en béton
DE69531339T2 (de) Verfahren zur Herstellung eines Fahrbahnbelags auf einer Versuchsstrecke für Fahrzeuge und Fahrbahnelement für diese Versuchsstrecke
DE2138341A1 (de) Form zum Giessen von Porenbetonkörpern
DE1679329A1 (de) Verfahren zur Herstellung einer Flaechenheizung oder -Kuehlung und vorfabriziertes Element zur Durchfuehrung dieses Verfahrens
DE2248472B2 (de) Verfahren zur Herstellung von Plattenbacken aus Spannbeton
DE3325075A1 (de) Verfahren zum herstellen von vorgespannten hohlkoerpern aus beton, insbesondere spannbetonrohren, nach dem verfahren hergestellter hohlkoerper, insbesondere spannbetonrohr sowie vorrichtung zum durchfuehren des verfahrens
DE891519C (de) Verfahren zur Herstellung von unter Vorspannung gesetzten Betonbalken
DE1917398A1 (de) Vorrichtung zur Herstellung von Betonelementen,insbesondere Wand- oder Bodenplatten
DE102006029102A1 (de) Wannenförmiges Betonfundament, insbesondere für Hochspannungstransformatoren, sowie Seitenwandelement und Verfahren zur Herstellung des Betonfundamentes
DE2541514A1 (de) Verfahren und einrichtung zur zerstoerung einer baustruktur bzw. eines bauteiles
AT15837U1 (de) Ziegeleinhängedecke
DE10220696B3 (de) Einteilig ausgebildeter Abstandshalter zur höhenverstellbaren, lagestabilen Halterung eines Heizrohrregister und/oder -moduls in Betondecken und Betonböden und ein Verfahren zum Verlegen
DE2011145A1 (de) Verfahren zur Herstellung von Fertigbauten
DE68927828T2 (de) Verfahren zum einkapseln eines spannankers eines vorspanngliedes
DE1055213B (de) Rippendecke, insbesondere Geschossdecke, mit Heiz- oder Kuehlrohrleitungen und Verfahren zur Herstellung dieser Decke
DE2239055C2 (de) Verfahren zur Herstellung einer von einer Natursteinplatte abgeformten elastischen Matrize
DE2630794C2 (de) Verfahren zum Herstellen massiger Betonteile für den Wasserbau
DE102005002331B3 (de) Schalung als Hohlform für einen Baukörper
EP0886109A2 (fr) Procédé de fonctionnement d'un chauffage par le sol et dispositif pour la mise en oeuvre de la méthode
DE466757C (de) Verfahren zur Herstellung eines Asphaltbelags
AT262364B (de) Verfahren zur Herstellung von Betonfahrbahndecken
AT214618B (de) Vorgespanntes armiertes Brett, aus solchen hergestellte Decke und Verfahren zu dessen Herstellung
EP2803767B1 (fr) Système composite pour une hélistation et son procédé de fabrication
DE657764C (de) Schalung fuer grossmassige Betonbauwerke
DE947077C (de) Verfahren zum Herstellen von mit einer Betonauflage versehenen und mit dieser zu einem Verbundtragwerk starr verbundenen Stahltraegern

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB IE IT LI LU MC NL PT SE

RAX Requested extension states of the european patent have changed

Free format text: SI PAYMENT 940606

17P Request for examination filed

Effective date: 19941208

17Q First examination report despatched

Effective date: 19950922

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: SI PAYMENT 940606

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19970115

Ref country code: FR

Effective date: 19970115

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19970115

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 19970115

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19970115

Ref country code: DK

Effective date: 19970115

REF Corresponds to:

Ref document number: 147818

Country of ref document: AT

Date of ref document: 19970215

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59401573

Country of ref document: DE

Date of ref document: 19970227

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: 71585

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19970415

Ref country code: PT

Effective date: 19970415

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970513

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970513

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970531

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970531

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970531

Ref country code: BE

Effective date: 19970531

EN Fr: translation not filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 19970115

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

BERE Be: lapsed

Owner name: MERZ ALWIN

Effective date: 19970531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Effective date: 19971130

26N No opposition filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19980514

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000301