102. Filament winding of glassfibre reinforced cement utility poles and other products

Title: 102. Filament winding of glassfibre reinforced cement utility poles and other products
Author(s): G.T. Gilbert, J.R. Mott
Paper category : conference
Book title: 6th International RILEM Symposium on Fibre Reinforced Concretes
Editor(s): M. di Prisco, R. Felicetti and G.A. Plizzari
Print-ISBN: 2-912143-51-9
e-ISBN: 2912143748
Publisher: RILEM Publications SARL
Publication year: 2004
Pages: 1123 - 1132
Total Pages: 10
Nb references: 7
Language: English

Abstract: In filament winding, continuous glass fibre strands are passed through a matrix and wound onto a mandrel in a prescribed pattern to form the desired end-product with the specified mechanical properties. It is a process used to manufacture high strength-to- weight products and is used extensively in the FRP industry.This paper focuses on the development of a commercial production method and machinery for 7-15m long, glassfibre reinforced cement utility/transmission poles as well as inductively-transparent ladles for the molten alloy industry.The GRC filament wound composites consists of a modified Portland cement matrix reinforced with 12-18% volume fraction of continuous AR glass fibres wound, under tension, onto a tapered mandrel. The Portland cement matrix is modified to give suitable rheological properties for filament winding as well as good long-term properties. Accurate filament placement and the high fibre fraction result in exceptionally high mechanical properties for a GRC composite at low weight and cost. Laboratory testing was carried out in-house and independently confirmed at the University of Illinois at Urbana-Champaign near Chicago. CMT have joint ventured with an existing large producer of poles and are building a 15m.-high winding machine as part of the full-scale commercialisation of their process.

Online publication: 2004-08-30
Publication type : full_text
Public price (Euros): 0.00