IT1116386B - Plastics reinforced cement pipe manufacture - by winding reinforcing filaments into the wall under zero tension - Google Patents

Plastics reinforced cement pipe manufacture - by winding reinforcing filaments into the wall under zero tension

Info

Publication number
IT1116386B
IT1116386B IT5213377A IT5213377A IT1116386B IT 1116386 B IT1116386 B IT 1116386B IT 5213377 A IT5213377 A IT 5213377A IT 5213377 A IT5213377 A IT 5213377A IT 1116386 B IT1116386 B IT 1116386B
Authority
IT
Italy
Prior art keywords
pipe
reinforced cement
zero tension
wall under
cement pipe
Prior art date
Application number
IT5213377A
Other languages
Italian (it)
Original Assignee
Cement Asbestos Products Compa
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 Cement Asbestos Products Compa filed Critical Cement Asbestos Products Compa
Priority to IT5213377A priority Critical patent/IT1116386B/en
Application granted granted Critical
Publication of IT1116386B publication Critical patent/IT1116386B/en

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Abstract

A reinforced cement pipe is made by forming a wet fibrocement sheet and winding it upon a pipe forming mandrel. A continuous reinforcement of an aromatic polyamide (such as KEVLAR RTM) is also wound onto the mandrel at zero tension without stretching and remains embedded in the fibro-cement. Several layers of fibro-cement and several polyamide layers, perhaps of opposite hand, may be applied. A pipe having a higher bursting strength than with tensioned reinforcement is formed. The pipe is useful in piping water.
IT5213377A 1977-12-09 1977-12-09 Plastics reinforced cement pipe manufacture - by winding reinforcing filaments into the wall under zero tension IT1116386B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT5213377A IT1116386B (en) 1977-12-09 1977-12-09 Plastics reinforced cement pipe manufacture - by winding reinforcing filaments into the wall under zero tension

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT5213377A IT1116386B (en) 1977-12-09 1977-12-09 Plastics reinforced cement pipe manufacture - by winding reinforcing filaments into the wall under zero tension

Publications (1)

Publication Number Publication Date
IT1116386B true IT1116386B (en) 1986-02-10

Family

ID=11276421

Family Applications (1)

Application Number Title Priority Date Filing Date
IT5213377A IT1116386B (en) 1977-12-09 1977-12-09 Plastics reinforced cement pipe manufacture - by winding reinforcing filaments into the wall under zero tension

Country Status (1)

Country Link
IT (1) IT1116386B (en)

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