Title:
Micro-Reinforced Cementitious Composites for Thin Repairs
Author(s):
Nemkumar Banthia and Sylvie Dubeau
Publication:
Symposium Paper
Volume:
128
Issue:
Appears on pages(s):
307-322
Keywords:
bending; carbon; cement pastes; composite materials; metal fibers; mortars (material); repairs; tension tests; Materials Research
DOI:
10.14359/1945
Date:
11/1/1991
Abstract:
With the objective of examining the possible use of microreinforced cementitious materials for thin repairs, tensile bond between old concrete and microreinforced cement composites was evaluated. Cement pastes and mortars were reinforced with microfibers of carbon and steel with fiber weight fractions of up to 5 percent. Uniaxial tensile tests were conducted to determine the strength of the tensile bond between an old concrete and the repair composite. Improvements in the tensile bond strength were noticed due to fiber inclusion. In some cases, however, poor composite workability led to inadequate compaction and the tensile bond strength was adversely affected.