Title:
Durability of Glass Fiber-Reinforced Cementitious Boards: New Non-Woven Glass Fiber Scrim Reinforcement
Author(s):
George J. Venta, Bruce J. Cornelius, and Raymond T. Hemmings
Publication:
Concrete International
Volume:
17
Issue:
1
Appears on pages(s):
66-71
Keywords:
alkalies; durability; glass fibers; microstructure; polyvinyl chloride; reinforcing materials; General
DOI:
Date:
1/1/1995
Abstract:
The long-term performance and durability of cementitious boards reinforced with various types of nonwoven PVC plastisol-coated glass-fiber scrims were studied. It was shown that a newly developed nonwoven glass-fiber scrim reinforcement, when incorporated into cement boards, had superior long-term durability characteristics compared with more conventional reinforcing fabrics when aged under accelerated conditions. Superior board strength retention and the apparent absence microstructurally of significant alkali attack on the aged glass-fiber surfaces indicated that reinforcing scrims of this type hold definite promise for applications in cementitious boards.