E - Fixed Constructions – 04 – C
Patent
E - Fixed Constructions
04
C
E04C 5/01 (2006.01)
Patent
CA 2131212
A metal fiber for reinforcing cement-based materials comprises an elongated, substantially straight central portion and sinusoid shaped end portions. The sinusoid at each end portion has an optimum amplitude Ao, opt defined by: Ao, opt = [k1(?c)k2] [?u.alpha. .epsilon.f.beta.] [Af/Pf] where k1 = 2.025 x 10-2, ?c = compressive strength of the cement-based material in MPa, k2 = 3.19 x 10-1, ?u = ultimate tensile strength of the metal in MPa, .alpha. = 6.60 x 10-1, .epsilon.f = ductility of the metal in percent, and .beta. = 3.20 x 10-1, Af = cross-sectional area of the fiber in mm, and Pf = perimeter of the fiber in mm. The sinusoid further has a wavelength Ls defined by: Ls = (Lf - Lm)/2 where Lf = length of the fiber, Lm = length of the central portion, and wherein 0.5 Lf < Lm < 0.75 Lf. Since the optimum amplitude is defined as a function of the ultimate tensile strength and ductility of the fiber material as well as of the compressive strength of the matrix material, it is possible to tailor the fiber geometry according to the properties of the fiber and matrix materials chosen, and ultimately to the composite toughness desired in an actual structure.
Banthia Nemkumar
Krishnadev Madhavarao
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
Universite Laval
LandOfFree
Metal fiber with optimized geometry for reinforcing... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Metal fiber with optimized geometry for reinforcing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Metal fiber with optimized geometry for reinforcing... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1664243