Title:
Durability of Carbon Fiber Reinforced Cements in Acidic Environments
Author(s):
Nemkumar Banthia and Jiakang Sheng
Publication:
Symposium Paper
Volume:
126
Issue:
Appears on pages(s):
837-850
Keywords:
carbon fibers; cements; durability; inorganic acids; reinforced cements; Materials Research
DOI:
10.14359/2408
Date:
8/1/1991
Abstract:
The strength and toughness durability of carbon fiber reinforced cements (CFRC) in inorganic acidic environments was investigated by subjected prismatic flexural specimens (15 x 15 x 150 mm) to two acidic environments (H2 and HNO4) at the age of 28 days for up to 90 days. The pH of the two acids was maintained at 4.0. Eight CFRC mixes and three volume fractions of pitch-based carbon fibers were investigated. It was concluded that while plain unreinforced cements had considerable retrogression in their mechanical properties, carbon fiber reinforced cements had no appreciable effect on either the strength or the toughness, at least for the duration of exposure investigated.