EP2631366A2 - Betonverschalung - Google Patents

Betonverschalung Download PDF

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Publication number
EP2631366A2
EP2631366A2 EP13155271.3A EP13155271A EP2631366A2 EP 2631366 A2 EP2631366 A2 EP 2631366A2 EP 13155271 A EP13155271 A EP 13155271A EP 2631366 A2 EP2631366 A2 EP 2631366A2
Authority
EP
European Patent Office
Prior art keywords
shuttering unit
shuttering
unit according
plate
vertical
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Withdrawn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
EP13155271.3A
Other languages
English (en)
French (fr)
Other versions
EP2631366A3 (de
Inventor
Alvar Coppard
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.)
Proform Concrete Ltd
Original Assignee
Proform Concrete Ltd
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 Proform Concrete Ltd filed Critical Proform Concrete Ltd
Publication of EP2631366A2 publication Critical patent/EP2631366A2/de
Publication of EP2631366A3 publication Critical patent/EP2631366A3/de
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/02—Retaining or protecting walls
    • E02D29/025—Retaining or protecting walls made up of similar modular elements stacked without mortar
    • 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
    • E01C11/00—Details of pavings
    • E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
    • E01C11/04—Arrangement or construction of joints; Methods of making joints; Packing for joints for cement concrete paving
    • E01C11/10—Packing of plastic or elastic materials, e.g. wood, resin
    • 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
    • E01C11/00—Details of pavings
    • E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
    • E01C11/04—Arrangement or construction of joints; Methods of making joints; Packing for joints for cement concrete paving
    • E01C11/10—Packing of plastic or elastic materials, e.g. wood, resin
    • E01C11/106—Joints with only prefabricated packing; Packings therefor
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/18—Bulkheads or similar walls made solely of concrete in situ
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/12—Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
    • E04F15/14—Construction of joints, e.g. dividing strips
    • E04F15/142—Dividing strips or boundary strips

Definitions

  • the present invention relates to an item for improvement to poured concrete construction.
  • Concrete is well known as a versatile construction material. It can be used in pre-cast units or poured on site.
  • the shuttering sets the boundaries of the poured concrete and may also provide a guide for a concrete levelling means such as a roller.
  • the shuttering is removed and is either disposed of or reused. However in certain circumstances it is desirable for the shuttering to be used in such a way that it cannot be removed once the concrete is cured. In this situation the shuttering is known as "lost".
  • Lost shuttering may be desirable, for instance, when an area of concrete - such as a foundation or floor for a building - is required which is too large to be poured and levelled in a single process.
  • Lost shuttering would be used, for example, when constructing a concrete floor to divide a large area into smaller subdivisions in order to ease construction. Once the concrete has cured the shuttering is left embedded within the concrete, flush with or slightly below the finished surface of the concrete.
  • EP-A-2,365,150 discloses a plastics material shuttering suitable for use as lost shuttering, comprising compressible resilient vertical and horizontal elements.
  • the present invention is directed to a shuttering unit of resilient material comprising a pair of elements, each element comprising a substantially vertical plate and a substantially horizontal plate joined at substantially the in use bottom of the vertical plate, wherein the two elements are only joined together by a join at substantially the in use top of each vertical plate.
  • the join forms an axis about which the elements can move relative to one another to enable the shuttering unit to be compressed within the open void formed between the vertical plates by the concrete as it is poured. Because the shuttering unit is constructed from a resilient material the unit tends to return to its uncompressed state as the concrete shrinks during curing.
  • the join may comprise a section with substantially U-shaped cross-section.
  • the join may further comprise at least one ridge on each vertical plate.
  • the substantially U-shaped cross-section forms a gutter which may be used to collect a sealant material which may be desired to seal the joint between two sections of concrete on either side of the shuttering unit.
  • the ridge or ridges on the vertical plates may engage with a ridge or spring clip on a corresponding removable strip.
  • the shuttering unit may be supplied with a suitable corresponding removable strip.
  • the removable strip forms a substantially flat surface for guiding concrete levelling means. Once the concrete has cured the strip can be removed, leaving a channel into which sealant can be placed. A sealant ensures that leakage of incident fluids between sections of cured concrete is minimised.
  • This combination of features enables the shuttering unit of the present invention to be particularly useful because it can be employed either as a crack inducer or a screed rail or simultaneously as a crack inducer and screed rail.
  • the removable strip may have means for temporarily securing the strip to the shuttering unit.
  • the means for temporarily securing the strip to the shuttering unit may comprise a spring clip or ridges to interact with the ridges of the join of the shuttering unit.
  • One or both vertical plates may further comprise one or more ridges on the internal face of the vertical plate.
  • the ridge or ridges ensure that the shuttering unit cannot be compressed by more than a pre-set amount.
  • One or both of the horizontal plates may be arranged so that part of the horizontal plate extends into the region between the two vertical plates.
  • This arrangement further ensures that the shuttering unit cannot be compressed by more than a pre-set amount.
  • Each vertical plate may be joined to its corresponding horizontal plate via an intermediate plate-like section.
  • the intermediate plate-like section may be angled between the horizontal and the vertical.
  • One or both of the vertical plates may comprise one or more indentations in the external face.
  • An indentation in the external face of a vertical plate allows placement of a drill to make a hole in the plate.
  • Pre-formed indentations enable a set of holes to be made in precise alignment so as to allow for the insertion of reinforcement bars. Holes may be desired or not desired according to the requirements of the building project and therefore the choice of whether to make holes or not increases the range of projects which the shuttering can be used in. However if holes for reinforcement bars are required, it is important for them to be precisely aligned so as to minimise the risk of concrete leaking into the void between the two vertical plates.
  • the shuttering unit may be of plastics material.
  • the shuttering unit may be formed integrally.
  • an integrally moulded plastics material shuttering unit 10 which has a pair of elements 12, each element 12 having a vertical plate 14 and a horizontal plate 16. Each vertical plate 14 and its corresponding horizontal plate 16 is joined via an intermediate plate-like section 18 which forms an angle between the vertical and the horizontal.
  • the elements 12 are joined together by a join 20 at the top of each element 12.
  • the join 20 features a U-shaped gutter 22 and ridges 24.
  • Each vertical plate 14 has a ridge 26 on the internal face of the plate 14.
  • Each horizontal plate 16 has a part 28 which extends into the region between the two vertical plates 14.
  • Each vertical plate 14 has an indentation 30 in the external face.
  • the indentation 30 can be used to guide a drill in order that holes, if desired, may be aligned. Holes may be desired for the insertion of reinforcement bars. If such reinforcement bars are used it is important that the required holes are aligned so as to minimise the risk of concrete leaking into the void between the two vertical plates.
  • FIG. 2 there is provided an integrally moulded plastics material shuttering unit 10 shown in engagement with a corresponding removable strip 40.
  • the removable strip 40 has a flat top surface 42 and arms 44 which form a spring clip for corresponding removable engagement with ridges 24.
  • a removable strip 40 has a flat top surface 42 and arms 44 which form a spring clip for corresponding removable engagement with ridges (not shown) of a shuttering unit (not shown).
  • the ridges 26 on the internal faces of the vertical plates 14 and the parts 28 of the horizontal plates 16 which extend into the region between the vertical plates 16 prevent excessive compression of the shuttering unit 10.
  • the top surface 42 of the removable strip 40 provides a guide for the concrete levelling means. Once the concrete has cured the removable strip 40 can be removed, leaving a U-shaped gutter 22 which can collect a sealant.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
EP13155271.3A 2012-02-21 2013-02-14 Betonverschalung Withdrawn EP2631366A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB1202970.8A GB201202970D0 (en) 2012-02-21 2012-02-21 Concrete shuttering

Publications (2)

Publication Number Publication Date
EP2631366A2 true EP2631366A2 (de) 2013-08-28
EP2631366A3 EP2631366A3 (de) 2014-03-05

Family

ID=45939950

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13155271.3A Withdrawn EP2631366A3 (de) 2012-02-21 2013-02-14 Betonverschalung

Country Status (2)

Country Link
EP (1) EP2631366A3 (de)
GB (1) GB201202970D0 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3059346A1 (de) * 2015-02-20 2016-08-24 Omniplast Anordnung zur einbringung von beton, einschliesslich einer abziehhilfe/kontrollfuge

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2365150A1 (de) 2010-03-03 2011-09-14 K-Form Limited Verlorene Verschalung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4346542A (en) * 1979-07-09 1982-08-31 Kohkichi Tateno Joint for use in concrete deposit
US4841704A (en) * 1988-05-23 1989-06-27 Jarrell Stephen E Screed track for concrete slab construction
US5450699A (en) * 1993-12-23 1995-09-19 Lee; Nam-Seung Flexible partitioning member for use in forming concrete slab

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2365150A1 (de) 2010-03-03 2011-09-14 K-Form Limited Verlorene Verschalung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3059346A1 (de) * 2015-02-20 2016-08-24 Omniplast Anordnung zur einbringung von beton, einschliesslich einer abziehhilfe/kontrollfuge

Also Published As

Publication number Publication date
EP2631366A3 (de) 2014-03-05
GB201202970D0 (en) 2012-04-04

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