Carbon and Steel Microfiber‐Reinforced Cement‐Based Composites for Thin Repairs
Publication: Journal of Materials in Civil Engineering
Volume 6, Issue 1
Abstract
An experimental investigation was carried out to determine the suitability of fiber‐reinforced cementitious composites containing high‐volume fractions of very fine (micro) fibers of carbon and steel for thin repairs. Two series of tests were performed: the first in which the fracture characteristics of the fiber‐reinforced composites themselves were assessed, and the second in which the bond developed between an old concrete substrate and fiber‐reinforced repair composite was determined by conducting tensile tests on cylindrical repair assemblies. Tests were conducted at 22°C and at −50°C in an environmental chamber. The fracture characteristic of cement matrices were considerably improved due to microfiber reinforcement. Significant improvements in the repair bond strength value due to fibers were also noted. The test data clearly demonstrate the potential of microfiber‐reinforced cement‐based composites as a thin repair material.
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References
1.
Banthia, N. (1992). “Pitch‐based carbon fiber reinforced cements: structure, performance, applications and research needs.” Can J. Civ. Engrg., 19(1), 26–38.
2.
Banthia, N., Mindess, S., and Bentur, A. (1987). “Impact behavior of concrete beams.” Mat. and Struct. (RILEM), 20(119), 293–302.
3.
Banthia, N., and Ohama, Y. (1989). “Dynamic tensile fracture of carbon fiber reinforced cements.” Proc. Int. Conf. on Recent Developments in Fiber Reinforced Cements and Concretes, Elsevier Applied Science, London, England, 251–260.
4.
Banthia, N., and Sheng, J. (1990). “Micro‐reinforced cementitious materials.” Mat. Res. Soc. Symp. Proc., 211, S. Mindess and J. Skalny, eds., Materials Research Society, Boston, Mass., 25–32.
5.
Felt, E. J. (1956). “Resurfacing and patching concrete pavements with bonded concrete.” Hwy. Res. Board Proc., 35, 444–469.
6.
Felt, E. J. (1960). “Repair of concrete pavement.” J. Am. Concrete Inst. (Aug.), 139–153.
7.
“Guide for repair of concrete bridge superstructures.” (1980). Concrete Int. Des. and Constr., 2(9), 69–88.
8.
Ohama, Y., Amano, M., and Endo, M. (1985). “Properties of carbon fiber reinforced cement with silica fume.” Concrete Int., 7(3), 58–62.
9.
Ohama, Y., Demaura, K., Nagao, H., and Ogi, T. (1986). “Adhesion of polymer modified mortar to ordinary cement mortar by different test methods.” Adhesion between Polymers and Concrete: RELIM Symp. Proc., H. R. Sasse, ed., Chapman and Hall, New York, N.Y., 719–729.
10.
Ouyang, C., and Shah, S. P. (1992). “Toughening of high‐strength cement matrix reinforced by discontinuous short fibers.” Cement and Concrete Res., 22, 1201–1215.
11.
Ramey, G. E., Moore, R. K., Parker, F. Jr., and Strickland, A. M. (1988). “Laboratory evaluation of four rapid setting concrete patching materials.” Transp. Res. Rec. No. 1041. 47–52.
12.
Razl, I. (1991). “Novel materials for concrete restoration.” Proc., 1st Can. Univ.‐Industry Workshop on Fiber Reinforced Concrete. N. Banthia, ed., Laval University, Quebec City, Quebec, Canada, 118–128.
13.
Shah, S. P., and Rangan, B. V. (1971). “Fiber reinforced concrete properties.” J. Am. Concrete Inst. Proc., 68(2), 126–134.
Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 6 • Issue 1 • February 1994
Pages: 88 - 99
Copyright
Copyright © 1994 American Society of Civil Engineers.
History
Received: Oct 19, 1992
Published online: Feb 1, 1994
Published in print: Feb 1994
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