ES372998A1 - A process for making a composite pre-stressed asbestos-cement pipe - Google Patents

A process for making a composite pre-stressed asbestos-cement pipe

Info

Publication number
ES372998A1
ES372998A1 ES69372998A ES372998A ES372998A1 ES 372998 A1 ES372998 A1 ES 372998A1 ES 69372998 A ES69372998 A ES 69372998A ES 372998 A ES372998 A ES 372998A ES 372998 A1 ES372998 A1 ES 372998A1
Authority
ES
Spain
Prior art keywords
asbestos
coating
pipe body
cement pipe
making
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
Application number
ES69372998A
Other languages
Spanish (es)
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.)
Corporacion Empresarial de Materiales de Construccion COEMAC SA
Original Assignee
Corporacion Empresarial de Materiales de Construccion COEMAC SA
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 Corporacion Empresarial de Materiales de Construccion COEMAC SA filed Critical Corporacion Empresarial de Materiales de Construccion COEMAC SA
Publication of ES372998A1 publication Critical patent/ES372998A1/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
    • F16L58/04—Coatings characterised by the materials used
    • F16L58/06—Coatings characterised by the materials used by cement, concrete, or the like
    • 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
    • B28B21/70—Methods or machines specially adapted for the production of tubular articles by building-up from preformed elements
    • B28B21/72—Producing multilayer tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/08—Rigid pipes of concrete, cement, or asbestos cement, with or without reinforcement

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Laminated Bodies (AREA)

Abstract

In a process for making a composite prestressed asbestos-cement pipe an asbestos cement pipe body 1 is shrunk by removing its free water content, a coating of material 2 is wound under tension on to the pipe body 1 which is then permitted to expand by regaining a free water content from atmospheric moisture, the expansion causing the coating 2 to exert a compressive force on the pipe body 1. The coating 2 may be metallic or mineral or organic strands embedded in thermosetting resin which are wrapped while tensioned and the tension maintained until the resin hardens. The strands may be of asbestos, carbon fibre, metals, ceramic, cotton, carbon, polymers, polyesters or polyolefines and the resins may be for example phenoplasts, aminoplasts, polyester, ethoxyline, polyurethane.
ES69372998A 1968-12-24 1969-10-29 A process for making a composite pre-stressed asbestos-cement pipe Expired ES372998A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR180193A FR1598650A (en) 1968-12-24 1968-12-24

Publications (1)

Publication Number Publication Date
ES372998A1 true ES372998A1 (en) 1972-03-16

Family

ID=8658922

Family Applications (1)

Application Number Title Priority Date Filing Date
ES69372998A Expired ES372998A1 (en) 1968-12-24 1969-10-29 A process for making a composite pre-stressed asbestos-cement pipe

Country Status (7)

Country Link
BE (1) BE743090A (en)
ES (1) ES372998A1 (en)
FR (1) FR1598650A (en)
GB (1) GB1244920A (en)
LU (1) LU60066A1 (en)
NL (1) NL6919184A (en)
OA (1) OA03186A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112959481B (en) * 2021-02-03 2022-06-21 张家界涵睿新材料科技有限公司 Automatic equipment for culvert pipe production

Also Published As

Publication number Publication date
NL6919184A (en) 1970-06-26
GB1244920A (en) 1971-09-02
LU60066A1 (en) 1970-02-23
BE743090A (en) 1970-05-14
FR1598650A (en) 1970-07-06
OA03186A (en) 1970-12-15

Similar Documents

Publication Publication Date Title
ES8801776A1 (en) Acoustically porous building materials
ES357337A1 (en) Continuous production of composite panels,particularly for buildings
NZ336159A (en) Building element, low density non-adhering core within sheath shaped to interfit with other elements
ES372998A1 (en) A process for making a composite pre-stressed asbestos-cement pipe
FR2107457A5 (en) Compacting wound fibre tubes - successively as each band is wound on
GB1532544A (en) Composite pipeline
GB816767A (en) The manufacture of spigot-and-socket concrete pipe joints
JPS5573524A (en) Production of reinforced plastic
ES300837A1 (en) Improvements relating to reinforced pipes and beams
GB1000741A (en) Process for the production of lattice girders for ferroconcrete ribbed ceilings
FR2233464A1 (en) Composite prestressed concrete and steel beam - has steel I beam with its bottom flange encased in stressed concrete
GB838090A (en) Improvements relating to cables for pre-stressing concrete
FR2088773A5 (en) Composite synthetic building panels - esp of polyester reinforced with aggregate
ES259462A1 (en) Composite sheet fabricating apparatus and method
FR2375035A1 (en) Fibre reinforced bonded boards - with fibres tensioned before setting to increase strength
ES354464A1 (en) A method of manufacturing reinforced pipes. (Machine-translation by Google Translate, not legally binding)
ES255914A1 (en) A procedure for the manufacture of pretensed concrete pipes (Machine-translation by Google Translate, not legally binding)
JPS5256182A (en) Glass-fiber reinforced cement laminates and process for producing them
GB1279410A (en) Improvements in the manufacture of composite pipes
ES268589A1 (en) Improvements in the pretensed travies of armed concrete (Machine-translation by Google Translate, not legally binding)
JPS5769717A (en) Manufacture of molded coil
NL7103187A (en) Low density aggregates for cement compsn
JPH01174690A (en) Production of reinforcement for structural material
GB998391A (en) The manufacture of insulating rods
JPS5253524A (en) Hume concrete pipe reinforced with metalic fibers