GLASS FIBRE REINFORCED CEMENT

Glass fibre reinforced cement is introduced as a new composite material, based on a matrix of cement or cement and fine filler reinforced with a relatively small addition of strands of alkali resisting glass. The glass content is relatively low, being restricted by increasing difficulty of mixing and compacting as the glass content is increased. For any method of mixing and placing and varying with the mix proportions there is an optimum value of glass content in relation to bending strength; impact strength risses steadily with glass content. When premixing an additive is reguired, commonly polyethylene oxide or methyl cellulose. Premixed formulations can be placed by tamping and vibration, pumping or extrusion. An effective method is to mix and place simultaneously by spraying the matrix as a slurry into a stream of chopped glass fibre from a spray chopper. The combined sprays are directed on to a suction mould where excess water is removed. Properties of composites prepared by the various methods are compared. The impact strength and fire resistance of glass fibre reinforced cement are particularly good. Examples of practical applications are given. /Author/TRRL/

  • Corporate Authors:

    Building Research Establishment

    Building Research Station, Garston
    Watford WD2 7JR, Hertsford,   England 
  • Authors:
    • Majumdar, A J
    • Nurse, R W
  • Publication Date: 1974-8

Media Info

  • Features: Figures; Photos; References; Tables;
  • Pagination: 20 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00132634
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: Paper No. CD 7 Monograph
  • Files: ITRD, TRIS
  • Created Date: Nov 9 1977 12:00AM