Mechanical Behavior of Recycled Pet Fiber Reinforced Concrete Matrix
Concrete is strong in compression however weak in
tension. The tensile strength as well as ductile property of concrete
could be improved by addition of short dispersed fibers. Polyethylene
terephthalate (PET) fiber obtained from hand cutting or mechanical
slitting of plastic sheets generally used as discrete reinforcement in
substitution of steel fiber. PET fiber obtained from the former process
is in the form of straight slit sheet pattern that impart weaker
mechanical bonding behavior in the concrete matrix. To improve the
limitation of straight slit sheet fiber the present study considered two
additional geometry of fiber namely (a) flattened end slit sheet and
(b) deformed slit sheet. The mix for plain concrete was design for a
compressive strength of 25 MPa at 28 days curing time with a watercement
ratio of 0.5. Cylindrical and beam specimens with 0.5% fibers
volume fraction and without fibers were cast to investigate the
influence of geometry on the mechanical properties of concrete. The
performance parameters mainly studied include flexural strength,
splitting tensile strength, compressive strength and ultrasonic pulse
velocity (UPV). Test results show that geometry of fiber has a
marginal effect on the workability of concrete. However, it plays a
significant role in achieving a good compressive and tensile strength
of concrete. Further, significant improvement in term of flexural and
energy dissipation capacity were observed from other fibers as
compared to the straight slit sheet pattern. Also, the inclusion of PET
fiber improved the ability in absorbing energy in the post-cracking
state of the specimen as well as no significant porous structures.
[1] S. B. Kim, N. H Yi, H.Y. Kim, JHJ.Kim, and Y. C. Song, “Material and
structural performance evaluation of recycled PET fiber reinforced
concrete,” Cement & Concrete Composites, vol. 32, pp. 232-240, 2010.
[2] D. Foti, “Preliminary analysis of concrete reinforced with waste bottles
PET fibers,” Construction and Building Materials, vol. 25, no. 4, pp.
1906–1915, 2011.
[3] D. Foti, “Use of recycled waste pet bottle fibers for the reinforcement of
concrete,” Composites Structures, vol. 96, pp. 396-404, 2013.
[4] L. A. Pereira de Oliveira, J. P. Castro-Gomes. “Physical and mechanical
behavior of recycled PET fiber-reinforced mortar,” Construction and
Building Materials, vol. 25, no. 4, pp. 1712–1717, 2011.
[5] I. S.12269., “Specification for OPC-53 Grade cement,” Bureau of Indian
Standard, New Delhi, 1987.
[6] I. S. 2386, “Methods of test for aggregates for concrete - Part 1: Particle
size and shape,” Bureau of Indian Standard, New Delhi, 1963.
[7] I. S. 2386, “Methods of Test for Aggregates for concrete - Part 3:
Specific Gravity, Density, Voids, Absorption and Bulking,” Bureau of
Indian Standard, New Delhi, 1963.
[8] ACI 544.1 R-96, “State-of-the-Art Report on Fiber Reinforced Concrete
Reported by ACI Committee 544,” 2002.
[9] I. S. 1199, “Methods of sampling and analysis of concrete,” Bureau of
Indian Standard, New Delhi, 1959.
[10] I. S. 516, “Method of Tests for Strength of Concrete,”Bureau of Indian
Standard, New Delhi 1959 (Reaffirmed 2004).
[11] I. S. 5816, “Method of Test Splitting Tensile Strength,” Bureau of Indian
Standard, New Delhi, 1999.
[12] I. S. 13311-1, “Method of Non-destructive testing of concrete, Part 1:
Ultrasonic pulse velocity,” Bureau of Indian Standard, New Delhi, 1992.
[1] S. B. Kim, N. H Yi, H.Y. Kim, JHJ.Kim, and Y. C. Song, “Material and
structural performance evaluation of recycled PET fiber reinforced
concrete,” Cement & Concrete Composites, vol. 32, pp. 232-240, 2010.
[2] D. Foti, “Preliminary analysis of concrete reinforced with waste bottles
PET fibers,” Construction and Building Materials, vol. 25, no. 4, pp.
1906–1915, 2011.
[3] D. Foti, “Use of recycled waste pet bottle fibers for the reinforcement of
concrete,” Composites Structures, vol. 96, pp. 396-404, 2013.
[4] L. A. Pereira de Oliveira, J. P. Castro-Gomes. “Physical and mechanical
behavior of recycled PET fiber-reinforced mortar,” Construction and
Building Materials, vol. 25, no. 4, pp. 1712–1717, 2011.
[5] I. S.12269., “Specification for OPC-53 Grade cement,” Bureau of Indian
Standard, New Delhi, 1987.
[6] I. S. 2386, “Methods of test for aggregates for concrete - Part 1: Particle
size and shape,” Bureau of Indian Standard, New Delhi, 1963.
[7] I. S. 2386, “Methods of Test for Aggregates for concrete - Part 3:
Specific Gravity, Density, Voids, Absorption and Bulking,” Bureau of
Indian Standard, New Delhi, 1963.
[8] ACI 544.1 R-96, “State-of-the-Art Report on Fiber Reinforced Concrete
Reported by ACI Committee 544,” 2002.
[9] I. S. 1199, “Methods of sampling and analysis of concrete,” Bureau of
Indian Standard, New Delhi, 1959.
[10] I. S. 516, “Method of Tests for Strength of Concrete,”Bureau of Indian
Standard, New Delhi 1959 (Reaffirmed 2004).
[11] I. S. 5816, “Method of Test Splitting Tensile Strength,” Bureau of Indian
Standard, New Delhi, 1999.
[12] I. S. 13311-1, “Method of Non-destructive testing of concrete, Part 1:
Ultrasonic pulse velocity,” Bureau of Indian Standard, New Delhi, 1992.
@article{"International Journal of Architectural, Civil and Construction Sciences:70814", author = "Comingstarful Marthong and Deba Kumar Sarma", title = "Mechanical Behavior of Recycled Pet Fiber Reinforced Concrete Matrix", abstract = "Concrete is strong in compression however weak in
tension. The tensile strength as well as ductile property of concrete
could be improved by addition of short dispersed fibers. Polyethylene
terephthalate (PET) fiber obtained from hand cutting or mechanical
slitting of plastic sheets generally used as discrete reinforcement in
substitution of steel fiber. PET fiber obtained from the former process
is in the form of straight slit sheet pattern that impart weaker
mechanical bonding behavior in the concrete matrix. To improve the
limitation of straight slit sheet fiber the present study considered two
additional geometry of fiber namely (a) flattened end slit sheet and
(b) deformed slit sheet. The mix for plain concrete was design for a
compressive strength of 25 MPa at 28 days curing time with a watercement
ratio of 0.5. Cylindrical and beam specimens with 0.5% fibers
volume fraction and without fibers were cast to investigate the
influence of geometry on the mechanical properties of concrete. The
performance parameters mainly studied include flexural strength,
splitting tensile strength, compressive strength and ultrasonic pulse
velocity (UPV). Test results show that geometry of fiber has a
marginal effect on the workability of concrete. However, it plays a
significant role in achieving a good compressive and tensile strength
of concrete. Further, significant improvement in term of flexural and
energy dissipation capacity were observed from other fibers as
compared to the straight slit sheet pattern. Also, the inclusion of PET
fiber improved the ability in absorbing energy in the post-cracking
state of the specimen as well as no significant porous structures.", keywords = "Concrete matrix, polyethylene terephthalate (PET)
fibers, mechanical bonding, mechanical properties, UPV.", volume = "9", number = "7", pages = "879-5", }