WO1993003241A1 - Poteau d'acier a revetement resistant a la corrosion - Google Patents
Poteau d'acier a revetement resistant a la corrosion Download PDFInfo
- Publication number
- WO1993003241A1 WO1993003241A1 PCT/AU1992/000395 AU9200395W WO9303241A1 WO 1993003241 A1 WO1993003241 A1 WO 1993003241A1 AU 9200395 W AU9200395 W AU 9200395W WO 9303241 A1 WO9303241 A1 WO 9303241A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pole
- embedded
- mould
- ground
- mortar
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 20
- 239000010959 steel Substances 0.000 title claims abstract description 20
- 238000005260 corrosion Methods 0.000 title abstract description 8
- 230000007797 corrosion Effects 0.000 title abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 16
- 239000011083 cement mortar Substances 0.000 claims abstract description 13
- 239000004568 cement Substances 0.000 claims abstract description 7
- 239000004927 clay Substances 0.000 claims abstract description 4
- 238000009987 spinning Methods 0.000 claims description 13
- 239000011440 grout Substances 0.000 claims description 12
- 239000004570 mortar (masonry) Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims 1
- 230000000717 retained effect Effects 0.000 claims 1
- 239000002689 soil Substances 0.000 abstract description 3
- 239000011248 coating agent Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 5
- 241000256602 Isoptera Species 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 229910052571 earthenware Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
Classifications
-
- 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
- E02D31/06—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 corrosion by soil or water
-
- 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
- B28B19/00—Machines or methods for applying the material to surfaces to form a permanent layer thereon
- B28B19/0023—Lining the inner wall of hollow objects, e.g. pipes
-
- 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
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/02—Methods or machines specially adapted for the production of tubular articles by casting into moulds
- B28B21/10—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means
- B28B21/22—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means using rotatable mould or core parts
- B28B21/30—Centrifugal moulding
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/08—Structures made of specified materials of metal
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/12—Structures made of specified materials of concrete or other stone-like material, with or without internal or external reinforcements, e.g. with metal coverings, with permanent form elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/22—Sockets or holders for poles or posts
- E04H12/2292—Holders used for protection, repair or reinforcement of the post or pole
Definitions
- the invention relates to a method of producing steel poles for use for example as a power pole and particularly relates to the method of producing a pole butt which is resistant to corrosion when the pole is embedded in the ground. Problems exist with all kinds of poles particularly steel poles in producing a ground corrosion resistant butt portion particularly those used in highly corrosive soil areas such as in arid regions of Australia and elsewhere.
- steel poles have been constructed from heavy gauge steel in order to resist locally buckling near ground level when the pole is subjected to service loads.
- This invention enables use of a thinner steel shell than has hitherto been possible without loss of strength, whilst being extremely resistant to corrosive effects.
- a process of treating a tubular pole member destined to be planted in the ground comprising the steps of applying a cement or like mortar or grout to the inner and outer surfaces of at least that part of the tubular member to be embedded in the ground.
- the grout/mortar is applied in a spinning operation.
- the tubular member includes a series of through apertures allowing coating of both surfaces of the member with the apertures transporting the grout mortar from one surface to the other surface of the pole structure.
- the embedded portion of the pole member is supported in a casing which at least initially forms a mould during application of mortar/grout to the surfaces of the pole, and may also provide an outer shield against strong corrosive or termite attack.
- a process of producing a steel power pole including steps of applying a dense cement mortar layer to the inside surface of a power pole shell and applying a layer of dense cement mortar to the outer surface of the pole shell at least in the area to be embedded in the ground; optionally, the pole shell is formed with an outer casing of dense cement on and adjacent to the embedded section of the steel pole, the mould casing around the embedded portion of the steel pole being of vitrified clay or the like material, to contain the outer casing of cement which will resist corrosive attack attack and increase the structural strength of said pole.
- Figure 2 shows schematically a spinning apparatus for applying cement mortar/grout to the pole interior and exterior portions
- Figure 3 shows a typical mould construction used during said spinning operation.
- tubular steel pole 10 is of tapered construction and includes a series of apertures 11 therein.
- the pole butt is positioned to concentrically within an outer casing 12.
- the casing may be of vitrified earthenware material, strong plastic such as ABS, galvanised steel or non-corrosive metal alloy, or cardboard or the like material as will be described in greater detail later.
- the dense cement mortar layer is applied during spinning of the pole and butt casing being pumped through pipe 20.
- the cement mortar is transported through holes 11 to coat both pipe surfaces in the butt region and fill the mould formed by the casing 12 and closure pieces 14, 15 shown in figure 3.
- the pole and casing arrangement is mounted before spinning on a spinning apparatus which is known per se having a motor 30 driving drive belts 31 through pulleys 32 to spin the pipe about its longitudinal axis whilst cement mortar is pumped through pipe 20.
- a spinning apparatus which is known per se having a motor 30 driving drive belts 31 through pulleys 32 to spin the pipe about its longitudinal axis whilst cement mortar is pumped through pipe 20.
- the outer casing and butt portion of the steel pole is closed in to form a mould construction using end caps 14 and 15 clamped to the outer casing.
- the method of manufacture of the improved pole is simple and represents an advancement over the previously used technique of applying cement mortar to the inside steel pipes by spinning.
- the outer casing is positioned accurately during spinning by the clamp pieces 14 and 15 so that cement mortar is confined within the annular space on both sides of the steel pipe and within the confines of the outer casing represented generally as 17.
- the outer casing 12 should be made of strong anti-corrosive material such as vitrified clay where the pole is destined embedded in aggressive ground conditions such as in some arid areas in Australia or in termite infested area if the pole is timber.
- non-load supporting material such as a cardboard casing may be used to serve simply as an outer mould during the spinning operation leaving the outer surface of the cement mortar as the corrosion resistant material.
- a dense cement mortar lining in the pole serves to stiffen the pole structure thereby eliminating or at least substantially reducing the chance of buckling in the pole under load and also to significantly increase the strength of the pole by forming a composite section with the steel shell. It is contemplated that the cost of providing a composite pole of the present construction will be more than off-set by the reduced cost of being able to use a thinner gauge shell and by the savings in surface protection of the embedded section of the pole.
- the tapered pole construction is usually made up of several modules of pipe which are telescoped together and in a preferred form of the invention the pole portions destined to be used above ground are also coated on the inside surface with the cement grout to provide added strength of the buckling of the pole and protection against corrosion that may result from build up of condensation and other moisture that may occur over time on the internal surface of the pole.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Ceramic Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Paleontology (AREA)
- Manufacturing & Machinery (AREA)
- Mining & Mineral Resources (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Piles And Underground Anchors (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
L'invention se rapporte à un revêtement résistant à la corrosion pour un poteau d'acier (10) devant être planté dans le sol, et convient particulièrement à des régions dont le sol est hautement corrosif telles que des régions arides, par exemple. L'invention se rapporte aussi à un procédé consistant à appliquer une couche de mortier au ciment (11) aux enveloppes interne et externe d'une base de poteau, tout au moins dans la zone devant être plantée dans la terre. La chemise (12) du moule, autour de la partie enterrée du poteau se compose de grés-cérame vitrififé ou d'un matériau analogue et confine la chemise de ciment externe pour que celle-ci résiste à l'attaque de la corrosion et pour augmenter la solidité du poteau.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9401605A GB2273945A (en) | 1991-08-02 | 1994-01-27 | Corrosion resistant coated steel pole |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPK7586 | 1991-08-02 | ||
AUPK758691 | 1991-08-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1993003241A1 true WO1993003241A1 (fr) | 1993-02-18 |
Family
ID=3775602
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AU1992/000395 WO1993003241A1 (fr) | 1991-08-02 | 1992-07-30 | Poteau d'acier a revetement resistant a la corrosion |
Country Status (4)
Country | Link |
---|---|
FR (1) | FR2679937A1 (fr) |
GB (1) | GB2273945A (fr) |
TW (1) | TW201808B (fr) |
WO (1) | WO1993003241A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004007874A1 (fr) * | 2002-07-17 | 2004-01-22 | Musco Corporation | Manchon ou protecteur de poteau |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111844425A (zh) * | 2020-06-08 | 2020-10-30 | 繁昌县东源电力器材制造有限公司 | 一种锥形水泥电杆生产用模具 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU1917534A (en) * | 1934-09-05 | 1927-03-28 | Pfistershammer Josef | Improvements in or relating to built-up tubular posts |
AU163126A (en) * | 1926-04-29 | 1927-06-14 | William Watson Charles | Improvements inthe process of and means forthe centrifugal production of structures of plastic material |
AU2419135A (en) * | 1935-08-28 | 1936-09-03 | James Hardie & Co. Limited | Improvements relating tothe coating of metal pipes |
AU345240A (en) * | 1940-09-20 | 1941-10-02 | Di-Met Proprietary Limited | Improvements in and connected with pipes andother articles having cementitious coatings |
AU4563772A (en) * | 1972-08-16 | 1974-02-21 | Ameron, Inc | Method of sealing mortar-coated pipe |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB396090A (en) * | 1932-01-21 | 1933-07-21 | Michael Ratcliffe Barnett | Improvements in the manufacture of incorrodible reinforced pipes or tubes |
FR756895A (fr) * | 1932-09-14 | 1933-12-16 | Poteau perfectionné | |
AT151477B (de) * | 1932-12-15 | 1937-11-10 | Josef Ing Pfistershammer | Auskegeligen, dünnwandigen Blechrohrstücken zusammengesetzter rohrförmiger Mast, insbesondere Freileitungsmast. |
FR884803A (fr) * | 1941-08-09 | 1943-08-27 | Mât d'acier pour installations extérieures | |
DE855072C (de) * | 1950-06-10 | 1952-11-10 | Franz Ahlen | Verfahren und Stahlrohrumhuellung zum Herstellen von Schleuderbetonsaeulen |
-
1992
- 1992-07-30 WO PCT/AU1992/000395 patent/WO1993003241A1/fr active Application Filing
- 1992-08-01 TW TW81106122A patent/TW201808B/zh active
- 1992-08-03 FR FR9209611A patent/FR2679937A1/fr not_active Withdrawn
-
1994
- 1994-01-27 GB GB9401605A patent/GB2273945A/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU163126A (en) * | 1926-04-29 | 1927-06-14 | William Watson Charles | Improvements inthe process of and means forthe centrifugal production of structures of plastic material |
AU1917534A (en) * | 1934-09-05 | 1927-03-28 | Pfistershammer Josef | Improvements in or relating to built-up tubular posts |
AU2419135A (en) * | 1935-08-28 | 1936-09-03 | James Hardie & Co. Limited | Improvements relating tothe coating of metal pipes |
AU345240A (en) * | 1940-09-20 | 1941-10-02 | Di-Met Proprietary Limited | Improvements in and connected with pipes andother articles having cementitious coatings |
AU898161A (en) * | 1960-09-15 | 1963-05-02 | The Hume Pipe Company (South African Ltd | Casting of moulding of material by centrifugal force |
AU4563772A (en) * | 1972-08-16 | 1974-02-21 | Ameron, Inc | Method of sealing mortar-coated pipe |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004007874A1 (fr) * | 2002-07-17 | 2004-01-22 | Musco Corporation | Manchon ou protecteur de poteau |
US7607276B2 (en) | 2002-07-17 | 2009-10-27 | Musco Corporation | Pole cover or sleeve |
Also Published As
Publication number | Publication date |
---|---|
GB2273945A (en) | 1994-07-06 |
FR2679937A1 (fr) | 1993-02-05 |
GB9401605D0 (en) | 1994-04-13 |
TW201808B (fr) | 1993-03-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7553554B2 (en) | Environmentally protected reinforcement dowel pins and method of making | |
EP0965735A3 (fr) | Structure alvéolaire à parois minces et procédé pour son renforcement | |
US4361336A (en) | Epoxy-concrete coated pipe | |
EP2885452B1 (fr) | Protection contre la corrosion de câbles dans une structure de béton | |
KR100908921B1 (ko) | 프리컬럼을 사용한 폭렬방지형 고강도 철근콘크리트기둥부재의 제작방법 | |
EP0044036A1 (fr) | Objets protégés contre la corrosion et procédé pour protéger des objets contre la corrosion | |
WO1993003241A1 (fr) | Poteau d'acier a revetement resistant a la corrosion | |
CA2094872A1 (fr) | Methode de protection contre la corrosion des ouvrages en beton arme | |
AU2385492A (en) | Corrosion resistant coated steel pole | |
AU2086795A (en) | A foundation tube for use as a foundation for masts, posts, pillars, etc., together with a method for formation of the foundation | |
USRE29636E (en) | Manhole and method of manufacture | |
US5100738A (en) | Reinforced concrete containing coated steel reinforcing member | |
JP2007507606A5 (fr) | ||
JP2000159290A (ja) | タンク及びタンクの構造材 | |
RU2273709C2 (ru) | Способ изготовления водных бассейнов и бассейн, в частности бассейн для плавания | |
WO1998031890A1 (fr) | Procede d'application de peintures antirouille adhesives sur des tubes et des tiges de renfort en acier | |
US7062888B2 (en) | Vapor and termite barrier and method for concrete slab construction | |
JP3323000B2 (ja) | 建築物の防蟻処理工法 | |
JPH10266157A (ja) | 鋼コンクリートハイブリッド構造体の製作方法および製作設備 | |
JP2699009B2 (ja) | グランドアンカー台座施工法 | |
KR200261443Y1 (ko) | 철관 이음매 보강재 | |
US7892601B1 (en) | Corrosion inhibiting powders and processes employing powders | |
CN209856593U (zh) | 一种填充系统用弯头结构 | |
CN109440949A (zh) | 一种用于钢材防锈的磁流体装置及方法 | |
DE29812140U1 (de) | Wärmeisolierte Betonhohlwand mit variabler werkstoffbezogener Zwischendämmung |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AT AU BB BG BR CA CH CS DE DK ES FI GB HU JP KP KR LK LU MG MN MW NL NO PL RO RU SD SE US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IT LU MC NL SE BF BJ CF CG CI CM GA GN ML MR SN TD TG |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
122 | Ep: pct application non-entry in european phase | ||
NENP | Non-entry into the national phase |
Ref country code: CA |