WO2000011281A1 - Void formers and a cover for void formers - Google Patents
Void formers and a cover for void formers Download PDFInfo
- Publication number
- WO2000011281A1 WO2000011281A1 PCT/ZA1999/000068 ZA9900068W WO0011281A1 WO 2000011281 A1 WO2000011281 A1 WO 2000011281A1 ZA 9900068 W ZA9900068 W ZA 9900068W WO 0011281 A1 WO0011281 A1 WO 0011281A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- void former
- void
- former
- spacer
- cover
- Prior art date
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
- E04G9/00—Forming or shuttering elements for general use
- E04G9/08—Forming boards or similar elements, which are collapsible, foldable, or able to be rolled up
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/17—Floor structures partly formed in situ
- E04B5/18—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly cast between filling members
- E04B5/21—Cross-ribbed floors
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
-
- 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
- E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
- E04G15/06—Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
- E04G15/061—Non-reusable forms
-
- 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
- E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
- E04G15/06—Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
- E04G15/063—Re-usable forms
-
- 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
- E04G9/00—Forming or shuttering elements for general use
- E04G9/02—Forming boards or similar elements
- E04G9/021—Forming boards or similar elements the form surface being of cardboard
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/10—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure
- E02D31/14—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure against frost heaves in soil
Definitions
- This invention relates to the construction industry.
- the invention relates to the construction of slabs cast from a settable composition.
- void formers in the form of a cardboard box, with or without a wax coating, are used in the construction of foundations of buildings.
- the building industry use wooden and/or steel shuttering to form voids and or receptacles for casting a settable composition on or in to form a slab having a desired configuration.
- a void former having a chamber defined by one or more sidewall and at least one spacer extending laterally from the chamber for spacing the chamber of the void former from adjacent objects.
- the spacer spaces the chambers of adjacent void formers from each other thereby to provide a series of channels for casting a settable composition into when forming a slab and/or beams for a slab.
- the spacer may comprise one or more flap portion extendable outwardly from the chamber of the void former.
- the dimensions of the spacer may be selected to, in use, provide a channel width of suitable dimensions for the slab being cast.
- the void former may be provided with a reinforcing insert to reinforce the void former against compression.
- the reinforcing insert may be an egg-crating type insert comprising a cardboard, wood, plastics or other suitable rigid material grid.
- the invention extends to a spacer accessory for a void former configured to be used with a void former.
- the spacer accessory may be in the form of a collar having laterally extending spacer portions provided thereon, the collar being sized and dimensioned complementarily to the void former size and dimensions.
- the invention extends further to a method of spacing void formers using a spacer as set out above, the method comprising the arranging of void formers with the spacers in close proximity or in contact with an adjacent void former or object.
- a removable cover for a void former having a chamber the cover being adapted to from a barrier between the void former and a settable composition to be cast over the void former.
- the cover may be in the form of a hood sized and dimensioned complementarily to the void former to be covered.
- the cover may be sized and dimensioned such that a single cover covers a plurality of void formers.
- the cover may be made of a material substantially impervious to the settable composition.
- the cover may be made of a material substantially impervious to water.
- the cover may have one or more spacer regions for spacing the chambers of adjacent void formers to, in use, form a channel between void formers.
- the spacer regions may be peripherally located on the cover.
- the one or more spacer regions may located internally on the cover, for example, by stiffened zones on a sheet.
- the peripheral region of the cover may be sized and dimensioned to cover a spacer of the void former.
- the cover is made from a water tolerant material, such as wax coated cardboard, plastic, masonite, plastics sheeting, plastic coated cardboard, laminates, treated wood, or the like.
- the cover may be reusable or single use.
- the spacer regions may be in the form of flaps extending laterally from the cover.
- a void former having a chamber defined by side walls and at least one end wall, wherein at least the end wall is provided with a suitable rigid water tolerant surface.
- the end wall may be made entirely of a plastics material, masonite, wood, or any suitable sufficiently rigid water tolerant material, or it may be a layered or laminated material including a plastics, masonite, wood, or any suitable sufficiently rigid water tolerant material layer.
- the void former chamber may be open at one end.
- the void former chamber has a retaining formation provided on the open end for retaining a reinforcing insert in the void former chamber.
- the sidewalls are also made of the same material as the end wall.
- the void former may be provided with a spacer extending laterally from the chamber for spacing the chamber of the void former from adjacent objects, substantially as described above.
- the void former may be substantially parallelipipedal, typically having rectangular and/or trapezoidal sides.
- the sidewalls of the void former are trapezoidal and the or each end wall is rectangular.
- the invention extends to a re-usable void former which can be recovered from a construction and re-used.
- the void former may have a second end wall adapted to, in use, permit heaving soils to expand into the void former.
- the second wall is adapted to use in heaving soil conditions by providing it with an apertured zone, a weakened zone and/or a water weakenable zone through which soil may expand into the void former.
- a method of constructing a settable composition slab including the steps of: supporting void formers in a desired configuration such that the void formers define a plurality of channels for receiving a settable composition; covering the void formers with void former covers or hoods; casting a settable composition into at least the channels; removing the void formers once the settable composition has set; and optionally, removing the void former covers or hoods.
- the casting step may include casting the settable composition over the void formers to form a slab having projecting beam portions, coffer fashion.
- the removed void former covers or hoods may be reused or disposed of.
- a void former for use in the construction of long span slabs, the void former being elongate and having a polygonal cross-sectional profile.
- the void former is octagonal in cross-section.
- the octagonal cross-section may be obtained by two trapezoidal box void formers sandwiching a rectangular box void former.
- a reinforcing grid may be provided in the void former.
- the frame or receptacle may be in the form of a cardboard box having one or more cardboard layers to provide sufficient rigidity.
- the frame or receptacle is used in casting a column base portion.
- the invention extends to a method of casting a column from a settable composition, the method including the steps of:
- a frame or receptacle made from a lightweight material such as cardboard, plastics, masonite, or laminate, on a previously excavated and cast foot portion; - optionally, inserting steel reinforcing elements into the frame or receptacle; and casting a settable composition into the receptacle.
- the method may include the prior step of assembling the frame or receptacle from a sheet of the lightweight material.
- the frame or receptacle may be left in situ and, for example, decorated, or it may be removed from the set settable composition.
- Figure 1 shows, in three dimensional schematic representation, a void former, broadly in accordance with the invention
- Figure 2 shows, in three dimensional schematic representation, a reinforcing insert for a void former, broadly in accordance with the invention
- Figure 3 shows, in three dimensional schematic representation, a top and bottom for a void former, broadly in accordance with the invention
- Figure 4 shows, in three dimensional schematic representation, a spacer accessory for use with a void former
- Figure 5 shows, in three dimensional schematic representation, another embodiment of a void former in accordance with the invention.
- Figure 6 shows, in three dimensional schematic representation, a reinforcing insert for the void former of Figure 5;
- Figure 7 shows, in three dimensional schematic representation, a trapezoidal void former;
- Figure 8 shows, in three dimensional schematic representation, a reinforcing insert for the trapezoidal void former of Figure 7;
- Figure 9 shows, in three dimensional schematic representation, a cover or hood for the trapezoidal void former of Figures 7 and 8;
- Figure 10 shows, in three dimensional schematic representation, a plurality of covered void formers as shown in Figures 7 to 9, configured to form channels for receiving a settable composition in the construction of a slab;
- Figure 11 shows, in three dimensional schematic representation, a polygonal elongate void former for use in construction long span slabs
- Figure 12 shows, in three dimensional schematic representation, a reinforcing insert for the void former of Figure 11 ;
- Figure 13 shows, in three dimensional schematic representation, a frame or receptacle for casting a column or pillar.
- Figures 1 shows one embodiment of a void former 10, having a chamber Hdefined by four sidewalls 12, 13, 14, 15, and spacer 16 extending laterally from the sidewalls 12, 13, 14, 15 for spacing the chamber 11 of the void former 10 from adjacent objects (not shown).
- the spacer 16 spaces the chambers 11 of adjacent void formers 10 from each other thereby to provide a series of channels for casting a settable composition into when forming a slab and/or beams for a slab.
- the spacer 16 comprises four flap portions 18, 19, 20, 21 extendable outwardly from the chamber 11 of the void former 10.
- the dimensions of the spacer may be selected to, in use, provide a channel width of suitable dimensions for the slab being cast.
- a void former 10 provided with a reinforcing insert, in the form of a so called egg-crate or grid 22 to reinforce the void former 10 against compression.
- the egg-crating 22 comprising a cardboard (or wood, plastics or other suitable rigid material) grid.
- Figure 4 shows a spacer accessory 30 for a void former configured to be used with a conventional void former as shown in Figures 2 and 3.
- the spacer accessory 30 is in the form of an angle section of cardboard (or plastics coated cardboard) having a laterally extending spacer portion 32 provided thereon, the spacer accessory 30 being sized and dimensioned complementarily to the void former size and dimensions with which it is to be used.
- FIG. 5 An alternative embodiment of the void former 10 is shown in Figures 5 and 6 in which a void former 40 is assembled from an outer channel portion 42 having spacer portions or flaps 44, 46.
- An oppositely directed inner channel portion 48 co-operates with the outer channel portion 42 to form a chamber 49 of the void former 40.
- a reinforcing inner part 47 is receivable within the chamber 49 of the void former 40 to inhibit compression of the void former 40 in use.
- Figure 10 shows a method of spacing void formers 10 (or similar) using a spacer accessory 30 or a void former having a spacer 16, as set out above, the method comprising the arranging of void formers 10 with the spacers 16 in close proximity or in contact with an adjacent void former 10 or object.
- Figure 7 shows a void former 50, the sidewalls 52,53,54,55 of which are trapezoidal and the end wall 56 is rectangular define a chamber 57.
- the end wall 56 and sidewalls 52, 53, 54, 55 being made from plastic i.e. providing a suitable rigid water tolerant surface
- void former 50 can be recovered from a construction and re-used.
- Figure 9 shows a removable cover or hood 60 for a void former 50 having a chamber 57, the cover or hood 60 being sized and dimensioned complementarily to a void former chamber 57 to be covered and, in this embodiment, having a peripheral region 62 for spacing the chambers 57 of adjacent void formers to, in use, form channels 66 between the void formers 50.
- the cover is made from a water tolerant material, such as wax coated cardboard, plastic, masonite, plastics sheeting, or the like and may be removed for re-use.
- a water tolerant material such as wax coated cardboard, plastic, masonite, plastics sheeting, or the like and may be removed for re-use.
- Figure 10 illustrates a number of void formers 50 covered with a number of covers 60 to provide a template for a slab (not shown).
- Figures 11 and 12 show a void former 70 for use in the construction of long span slabs, the void former 70 being elongate and having a octagonal (polygonal) cross-sectional profile.
- the octagonal cross-section may be obtained by two trapezoidal void formers 50 sandwiching a rectangular box void former 10 between them.
- a reinforcing grid 72 is provided in the void former 70.
- This type of octagonal void former 70 can be used in the place of currently used round cylindrical void formers which are cumbersome and expensive.
- Figure 13 shows a frame 80 or receptacle for use in casting a column (not shown) from a settable composition.
- the frame 80 is in the form of a cardboard box having two cardboard layers 82, 84 to provide sufficient rigidity.
- the frame or receptacle is used in casting a column base portion.
- the frame 80 is assembled from a sheet 86 of corrugated cardboard.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR9913059-9A BR9913059A (en) | 1998-08-20 | 1999-08-19 | Void former, spacer accessory for the void, process for spacing void former, cover or removable awning, process for constructing a curable slab of composition, receptacle and, process for shaping a column from a composition |
AU59295/99A AU5929599A (en) | 1998-08-20 | 1999-08-19 | Void formers and a cover for void formers |
APAP/P/2001/002061A AP2001002061A0 (en) | 1998-08-20 | 1999-08-19 | Void formers and a cover for void formers. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA987522 | 1998-08-20 | ||
ZA98/7522 | 1998-08-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000011281A1 true WO2000011281A1 (en) | 2000-03-02 |
Family
ID=25587224
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/ZA1999/000068 WO2000011281A1 (en) | 1998-08-20 | 1999-08-19 | Void formers and a cover for void formers |
Country Status (6)
Country | Link |
---|---|
CN (1) | CN1312878A (en) |
AP (1) | AP2001002061A0 (en) |
AU (1) | AU5929599A (en) |
BR (1) | BR9913059A (en) |
OA (1) | OA11711A (en) |
WO (1) | WO2000011281A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CZ297936B6 (en) * | 2005-02-22 | 2007-05-02 | Jasan@Petr | Floor construction and process for making the same |
CN100408789C (en) * | 2003-07-28 | 2008-08-06 | 邱则有 | Hollow Member for cast-in-situ concrete forming |
CN100449076C (en) * | 2003-06-26 | 2009-01-07 | 邱则有 | Hollow member |
JP2016017356A (en) * | 2014-07-10 | 2016-02-01 | フジモリ産業株式会社 | Void member for concrete |
US20200224438A1 (en) * | 2019-01-11 | 2020-07-16 | Brett VERST | Concrete form apparatus |
RU215722U1 (en) * | 2022-09-16 | 2022-12-22 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Кубанский государственный технологический университет" (ФГБОУ ВО "КубГТУ") | Formwork for ribbed floor and roof slabs |
EP4137284A1 (en) * | 2021-08-19 | 2023-02-22 | richter & heß Verpackungs-Service GmbH | Moulding system |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100412297C (en) * | 2003-05-06 | 2008-08-20 | 邱则有 | Steel reinforced concrete hollow plate of hollow base for filling |
CN100412296C (en) * | 2003-05-06 | 2008-08-20 | 邱则有 | Hollow core for filling cast-in-situs concrete and use thereof |
CN100412279C (en) * | 2003-05-20 | 2008-08-20 | 邱则有 | Hollow cavity member for concrete |
CN100455752C (en) * | 2003-10-01 | 2009-01-28 | 邱则有 | Mould component |
CN1904264B (en) * | 2003-10-01 | 2010-04-21 | 邱则有 | Mould shell construction unit |
CN101220638B (en) * | 2003-10-21 | 2011-10-05 | 湖南邱则有专利战略策划有限公司 | Cast-in-situ concrete hollow slab |
CN101187233B (en) * | 2003-10-21 | 2013-01-02 | 湖南邱则有专利战略策划有限公司 | In situ casting concrete hollow building board |
CN101187232B (en) * | 2003-10-21 | 2013-01-02 | 湖南邱则有专利战略策划有限公司 | In situ casting concrete hollow building board |
CN1800545B (en) * | 2004-12-31 | 2010-05-05 | 邱则有 | Reinforced bar concrete hollow slab |
CN112227598A (en) * | 2020-08-24 | 2021-01-15 | 江苏东尚住宅工业有限公司 | Prefabricated slab with built-in cavity and manufacturing method |
CN112160480A (en) * | 2020-09-22 | 2021-01-01 | 湖南弘久建材科技有限公司 | Assembly type combined box mold # -shaped hollow floor structure and construction method thereof |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB574458A (en) * | 1944-05-05 | 1946-01-07 | Albert Henry Hawes | Improvements in the construction of concrete ceilings, floors, roofs and walls |
US2823442A (en) * | 1953-07-09 | 1958-02-18 | Evern Budd J | Carton form |
US2892238A (en) * | 1957-04-15 | 1959-06-30 | Lawrence Paper Co | Construction forms |
FR1226590A (en) * | 1959-02-24 | 1960-07-13 | Improvement in the establishment of slabs, and slabs resulting from their use | |
US3109217A (en) * | 1961-02-27 | 1963-11-05 | Lawrence Paper Co | Apparatus for use in forming concrete slabs |
US3328932A (en) * | 1964-09-02 | 1967-07-04 | David B Cheskin | Void former and void former in a concrete floor construction |
GB1087263A (en) * | 1964-09-03 | 1967-10-18 | Owens Illinois Inc | Floor structure |
CH505970A (en) * | 1969-08-29 | 1971-04-15 | Arlo Inc | Process for the production of masts, form for carrying out the process and mast produced according to the process |
AT316821B (en) * | 1971-08-11 | 1974-07-25 | Katzenberger Helmut | Lost formwork |
EP0103774A1 (en) * | 1982-08-24 | 1984-03-28 | Allo Assmann | Member for forming an opening in concrete floors |
US5782049A (en) * | 1996-12-11 | 1998-07-21 | Surevoid Products, Inc. | Two-part collapsible corrugated paper form void |
-
1999
- 1999-08-19 AU AU59295/99A patent/AU5929599A/en not_active Abandoned
- 1999-08-19 CN CN99809748A patent/CN1312878A/en active Pending
- 1999-08-19 AP APAP/P/2001/002061A patent/AP2001002061A0/en unknown
- 1999-08-19 WO PCT/ZA1999/000068 patent/WO2000011281A1/en active Application Filing
- 1999-08-19 BR BR9913059-9A patent/BR9913059A/en not_active IP Right Cessation
- 1999-08-19 OA OA1200100039A patent/OA11711A/en unknown
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB574458A (en) * | 1944-05-05 | 1946-01-07 | Albert Henry Hawes | Improvements in the construction of concrete ceilings, floors, roofs and walls |
US2823442A (en) * | 1953-07-09 | 1958-02-18 | Evern Budd J | Carton form |
US2892238A (en) * | 1957-04-15 | 1959-06-30 | Lawrence Paper Co | Construction forms |
FR1226590A (en) * | 1959-02-24 | 1960-07-13 | Improvement in the establishment of slabs, and slabs resulting from their use | |
US3109217A (en) * | 1961-02-27 | 1963-11-05 | Lawrence Paper Co | Apparatus for use in forming concrete slabs |
US3328932A (en) * | 1964-09-02 | 1967-07-04 | David B Cheskin | Void former and void former in a concrete floor construction |
GB1087263A (en) * | 1964-09-03 | 1967-10-18 | Owens Illinois Inc | Floor structure |
CH505970A (en) * | 1969-08-29 | 1971-04-15 | Arlo Inc | Process for the production of masts, form for carrying out the process and mast produced according to the process |
AT316821B (en) * | 1971-08-11 | 1974-07-25 | Katzenberger Helmut | Lost formwork |
EP0103774A1 (en) * | 1982-08-24 | 1984-03-28 | Allo Assmann | Member for forming an opening in concrete floors |
US5782049A (en) * | 1996-12-11 | 1998-07-21 | Surevoid Products, Inc. | Two-part collapsible corrugated paper form void |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100449076C (en) * | 2003-06-26 | 2009-01-07 | 邱则有 | Hollow member |
CN100408789C (en) * | 2003-07-28 | 2008-08-06 | 邱则有 | Hollow Member for cast-in-situ concrete forming |
CZ297936B6 (en) * | 2005-02-22 | 2007-05-02 | Jasan@Petr | Floor construction and process for making the same |
JP2016017356A (en) * | 2014-07-10 | 2016-02-01 | フジモリ産業株式会社 | Void member for concrete |
US20200224438A1 (en) * | 2019-01-11 | 2020-07-16 | Brett VERST | Concrete form apparatus |
US11649649B2 (en) * | 2019-01-11 | 2023-05-16 | American Forming Products Llc | Concrete form apparatus and method of using |
EP4137284A1 (en) * | 2021-08-19 | 2023-02-22 | richter & heß Verpackungs-Service GmbH | Moulding system |
RU215722U1 (en) * | 2022-09-16 | 2022-12-22 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Кубанский государственный технологический университет" (ФГБОУ ВО "КубГТУ") | Formwork for ribbed floor and roof slabs |
Also Published As
Publication number | Publication date |
---|---|
AP2001002061A0 (en) | 2001-03-31 |
OA11711A (en) | 2005-01-26 |
AU5929599A (en) | 2000-03-14 |
CN1312878A (en) | 2001-09-12 |
BR9913059A (en) | 2001-05-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2000011281A1 (en) | Void formers and a cover for void formers | |
US6494004B1 (en) | Self jigging concrete wall structure and method of construction | |
US4935186A (en) | Method of manufacturing concrete beams | |
US5224313A (en) | Apparatus for constructing isolation pockets | |
US4349492A (en) | Method of putting in a partition of insulation material inside concrete walls which are cast in a vertical position in an industrial building site | |
US4848050A (en) | Foundation for wooden buildings and construction method thereof | |
GB2073800A (en) | Method for fixing the ends of concrete columns in concrete bases and device for carrying out said method | |
ZA200005427B (en) | Void formers and a cover for void formers. | |
US3161703A (en) | Method and apparatus for fabricating a roof on large concrete structures | |
EP1455022B1 (en) | Forming pile foundations | |
EP3059350B1 (en) | Formwork edge element and method for forming a foundation for a building | |
EP1090189B1 (en) | Improved formation of capping beams for piles | |
US20040045241A1 (en) | Isolation pocket form with closure | |
GB2206637A (en) | Collapsible shuttering to absorb ground heave | |
US20050252129A1 (en) | Fracture-inducing lid for isolation pocket form | |
GB2094712A (en) | Collapsible structure and method of building using such a structure | |
KR101962709B1 (en) | Composite deck slab construction method with trench | |
JPS6145028B2 (en) | ||
CA1174069A (en) | Collapsible structure and method of building using such a structure | |
JP3401282B2 (en) | Construction method of soil between unit type buildings | |
JPH10317566A (en) | Stock freezer construction method | |
ITAN980008A1 (en) | PROCEDURE FOR THE REALIZATION OF THE FOUNDATION WORKS OF PREFABRICATED HOUSING MODULES | |
JPH07113220B2 (en) | Beam construction method | |
EP0092526A1 (en) | Method and means for concrete cavity building | |
JPS62253821A (en) | Construction of concrete floor slab |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 99809748.9 Country of ref document: CN |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AL AM AT AT AU AZ BA BB BG BR BY CA CH CN CR CU CZ CZ DE DE DK DK DM EE EE ES FI FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG US UZ VN YU ZA ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW SD SL SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2000/05427 Country of ref document: ZA Ref document number: 200005427 Country of ref document: ZA |
|
WWE | Wipo information: entry into national phase |
Ref document number: IN/PCT/2001/00153/KO Country of ref document: IN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 09763041 Country of ref document: US |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
122 | Ep: pct application non-entry in european phase |