IJSTE - International Journal of Science Technology & Engineering | Volume 3 | Issue 03 | September 2016 ISSN (online): 2349-784X All rights reserved by www.ijste.org 173 Effect of Steel Fiber and Glass Fiber on Mechanical Properties of Concrete Nitin Verma Hemant Kumar M. Tech. Scholar M. Tech. Scholar Department of Civil & Environmental Engineering Department of Civil & Environmental Engineering National Institute of Technical Teachers, Training and Research, Bhopal, India National Institute of Technical Teachers, Training and Research, Bhopal, India Dr. A. K. Jain Professor & Head Department of Civil & Environmental Engineering National Institute of Technical Teachers, Training and Research, Bhopal, India Abstract Fibers are generally used as resistance of cracking and strengthening of concrete. This paper presents the effects of crimped steel fibers and alkali resistance glass fibers on the mechanical properties of concrete. Experimental programme consist of conducting compressive strength test, flexural strength test and split tensile strength on hybrid reinforced concrete. Two types of fibers used are crimped steel fiber of length 45mm with aspect ratio 50 and glass fiber of length 12 mm with aspect ratio 857.1. The main aim of this experiment is to study the strength properties of hybrid reinforced concrete of M20 grade with 0.2%, 0.25%, 0.30%, 0.35% of glass fiber containing by weight of cement and 0.40%, 0.45%, 0.50%, 0.55% of steel fibers containing by volume of concrete. From the experimental results it was observed that samples containing steel and glass fibers showed enhanced properties compared to the normal specimen. Keywords: Crimped Steel Fibre, Glass Fibers, Flexural Strength, Compressive Strength, Splite Tensile Strength Hybrid Fiber Reinforced Concrete ________________________________________________________________________________________________________ I. INTRODUCTION Concrete is a most commonly used construction material. The utilization of concrete or cement based material is quite ancient. With the passage of time the significance of concrete has grown and the limitations of concrete have been gradually cut, making the concrete more durable with a higher performance. To improve the tensile strength of concrete, fiber reinforcement was added. The introduction of Fiber Reinforced Concrete (FRC) is an important achievement in concrete technology. Fibers are added to improve the strength parameters of the concrete. Fiber as reinforcement is effective to improve the flexural strength and compressive strength of concrete. In recent years, researchers have realized the benefits of combining fibers, in term of obtaining synergy and improving the response of composite material. A composite can be referred to as hybrid, if two or more types of fibers are reasonably combined to produce a composite mass II. EXPERIMENTAL PROGRAMME Materials Used A. The material selected for this experimental work includes crushed coarse aggregates, Natural River sand as fine aggregate, cement, crimped steel fiber, alkali resistance glass fiber and water. Cement 1) In this experimental work ordinary Portland cement (OPC) of 53 grade of Ultratech brand was used for all concrete mixes. The physical properties of cement are as given in Table.1. Table – 1 Physical Properties of Cement S. No. Properties Value IS Specification and Test procedure 1 Specific gravity 3.15 IS:4031 2 Standard consistency 35% IS:4031 & IS269 3 Initial setting time 35 Min. >30, IS:4031 & IS 269 4 Final setting time 300 Min. <600, IS:4031 & IS269
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Effect of Steel Fiber and Glass Fiber on Mechanical Properties of ConcreteIJSTE - International Journal of Science Technology & Engineering | Volume 3 | Issue 03 | September 2016 ISSN (online): 2349-784X
All rights reserved by www.ijste.org
173
Mechanical Properties of Concrete
Nitin Verma Hemant Kumar
Department of Civil & Environmental Engineering Department of Civil & Environmental Engineering
National Institute of Technical Teachers, Training and
Research, Bhopal, India
Research, Bhopal, India
National Institute of Technical Teachers, Training and Research, Bhopal, India
Abstract
Fibers are generally used as resistance of cracking and strengthening of concrete. This paper presents the effects of crimped steel
fibers and alkali resistance glass fibers on the mechanical properties of concrete. Experimental programme consist of conducting
compressive strength test, flexural strength test and split tensile strength on hybrid reinforced concrete. Two types of fibers used
are crimped steel fiber of length 45mm with aspect ratio 50 and glass fiber of length 12 mm with aspect ratio 857.1. The main
aim of this experiment is to study the strength properties of hybrid reinforced concrete of M20 grade with 0.2%, 0.25%, 0.30%,
0.35% of glass fiber containing by weight of cement and 0.40%, 0.45%, 0.50%, 0.55% of steel fibers containing by volume of
concrete. From the experimental results it was observed that samples containing steel and glass fibers showed enhanced
properties compared to the normal specimen.
Keywords: Crimped Steel Fibre, Glass Fibers, Flexural Strength, Compressive Strength, Splite Tensile Strength Hybrid
Fiber Reinforced Concrete
I. INTRODUCTION
Concrete is a most commonly used construction material. The utilization of concrete or cement based material is quite ancient.
With the passage of time the significance of concrete has grown and the limitations of concrete have been gradually cut, making
the concrete more durable with a higher performance. To improve the tensile strength of concrete, fiber reinforcement was
added. The introduction of Fiber Reinforced Concrete (FRC) is an important achievement in concrete technology. Fibers are
added to improve the strength parameters of the concrete. Fiber as reinforcement is effective to improve the flexural strength and
compressive strength of concrete. In recent years, researchers have realized the benefits of combining fibers, in term of obtaining
synergy and improving the response of composite material. A composite can be referred to as hybrid, if two or more types of
fibers are reasonably combined to produce a composite mass
II. EXPERIMENTAL PROGRAMME
Materials Used A.
The material selected for this experimental work includes crushed coarse aggregates, Natural River sand as fine aggregate,
cement, crimped steel fiber, alkali resistance glass fiber and water.
Cement 1)
In this experimental work ordinary Portland cement (OPC) of 53 grade of Ultratech brand was used for all concrete mixes. The
physical properties of cement are as given in Table.1. Table – 1
Physical Properties of Cement
1 Specific gravity 3.15 IS:4031
2 Standard consistency 35% IS:4031 & IS269
3 Initial setting time 35 Min. >30, IS:4031 & IS 269
4 Final setting time 300 Min. <600, IS:4031 & IS269
Effect of Steel Fiber and Glass Fiber on Mechanical Properties of Concrete (IJSTE/ Volume 3 / Issue 03 / 032)
All rights reserved by www.ijste.org
174
Fine Aggregate 2)
Locally available river sand passing through 4.75mm sieve was used as fine aggregate for research work. The physical properties
of fine aggregate are as given in Table 2. Table – 2
Physical Properties of fine aggregate
S. No. Properties Value
1 Specific gravity 2.65
2 Fineness modulus 3
Coarse Aggregate 3)
The coarse aggregates used for the work is of 20mm maximum and 10mm minium size which is free from deleterious materials.
It should be hard, strong, dense, durable and clean. Table – 3
Physical Properties of Coarse aggregate
S. No. Properties Value
1 Specific gravity 2.70
2 Fineness modules 4
Water 4)
Potable water is used for casting of specimen and as well as curing of specimen as per IS: 456 –2000. Water should be free from
acids, oil, alkalies, vegetables or other organic impurities.
Steel Fiber 5)
In this investigation crimped steel fibers have been used. Steel fibers were obtained from Bakul Wires Private Ltd. Dewas, M.P.
The properties and specification of steel fibers are mentioned in Table 4. (Fig. 1) Table – 4
Properties of Steel fibers
S. No. Properties Specifications
3 Diameter (mm) 0.90
4 Length (mm) 45
5 Aspect ratio 50
Glass Fiber 6)
In this investigation the Alkali Resistance Glass fibers with 12mm cut length and having tensile strength of 1700Mpa is used.
The glass fibers were obtained from International Trade Company Mumbai, Maharashtra. The properties of glass fiber are
mentioned in Table 5 (Fig. 2). Table – 5
Properties of Glass fibers
S. No. Properties Specifications
1 Specific Gravity 2.68
3 Diameter (μ) 14
4 Length (mm) 12
5 Modulus (GPa) 72
6 Percentage Elongation 2.3
Fig. 1: Steel Fibres Fig. 2: Glass Fibres
Effect of Steel Fiber and Glass Fiber on Mechanical Properties of Concrete (IJSTE/ Volume 3 / Issue 03 / 032)
All rights reserved by www.ijste.org
175
Experimental Methodology B.
In this study, M20 grade of concrete was used. The concrete mix design was done as per IS:102062-2009. The water cement-
ratio adopted is 0.55 for the proper workability of concrete. Cubes, Beams and Cylinders were casted with addition of glass and
steel fibers in different proportions. The mix proportions of M20 grade concrete are shown in Table 5. Glass and steel fibers
were used in different proportions are given in Table 7. Glass fibers were added by weight of cement and steel fibers were added
by volume of concrete in the concrete mix. Table – 6
Concrete Mix Proportions
Materials Quantity Proportion
Coarse Aggregate 1273 Kg/ m3 3.3
Water 212 Kg/ m3 0.55
Table – 7
Percentage variations of fibers
Mixes Glass fibers by weight of cement (%) Steel fibers by volume of concrete (%)
1 0 0
2 0.20 0.40
3 0.25 0.45
4 0.30 0.50
5 0.35 0.55
Compressive Strength Test 1)
For compressive strength test, cubes samples of size 150x150x150 mm were casted for M20 grade of concrete. The mould were
filled with concrete prepared with different percentage variation of glass and steel fiber such as G0-S0, G0.20-S0.40, G0.25-
S0.45, G0.30-S0.50, G0.35-S0.55. Compaction was done by tamping rod, top surface of sample were leveled and finished. After
7 and 28 days of curing these cube samples were tested on universal testing machine as per IS: 516-1959. In each catagories
three cubes tested and there average value is reported failure load. The compressive strength was calculated as- (Fig. 3)
Compressive Strength = Failure Load/ Cross sectional area
Split Tensile Strength Test 2)
For split tensile strength, cylindrical specimen of size 150mm diameter and 300mm length were casted. These specimens were
left for curing and tested under universal testing machine after 7 and 28 days of age. In each categories three cylindrical samples
are tested and there average value is reported. The split tensile strength was calculated as-
Split Tensile Strength= 2P/π DL
Where- P= Failure load, D= Diameter of cylinder, L= Length of cylinder
Fig. 3: Compressive Strength Test Fig. 4: Split Tensile Strength Test
Flexural Strength Test 3)
For flexural strength test, beam specimen of size 100x100x500 mm were casted in same percentage content of glass and steel
fiber used in preparation of cube samples. Beam specimens are demoulded after 24hours and they were allowed to cure for 7 and
28 days. The beam specimen were tested under two point loading over an effective span of 400mm on universal testing machine
as per IS:516-1959. In each categories three beam samples are tested and there average value is repoted. The flexural strength
was calculated as- (Fig. 4)
Effect of Steel Fiber and Glass Fiber on Mechanical Properties of Concrete (IJSTE/ Volume 3 / Issue 03 / 032)
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176
Flexural Strength= (P x L)/(b x d2)
Where- P= Failure Load
b= Width of specimen
d= depth of specimen
Experimental Results C.
Following tables (8, 9, 10) gives compressive, splite tensile strength and flexural strength test results for M20 grade of concrete
with G0-S0, G0.20-S0.40, G0.25-S0.45, G0.30-S0.50, G0.35-S0.55 glass and steel fibers and these results are graphically
represented in figure 6, 7 and 8. Table – 8
Compressive strength Test
Mixes Glass Fiber by Weight of Cement (%) Steel Fiber by Volume of Concrete (%) Compressive Strength (N/mm2)
7 days 28 days
Table – 9
Split Tensile Strength Test
Mixes Glass Fiber by Weight of Cement (%) Steel Fiber by Volume of Concrete (%) Split Tensile Strength (N/mm2)
7 days 28 days
1 0 0 1.78 2.45
2 0.20 0.40 1.94 2.70
3 0.25 0.45 2.03 2.75
4 0.30 0.50 2.10 2.90
5 0.35 0.55 1.84 2.54
Effect of Steel Fiber and Glass Fiber on Mechanical Properties of Concrete (IJSTE/ Volume 3 / Issue 03 / 032)
All rights reserved by www.ijste.org
177
Table – 10
Flexural Strength Test
Mixes Glass Fiber by Weight of Cement (%) Steel Fiber by Volume of Concrete (%) Flexural Strength (N/mm2)
7 days 28 days
III. CONCLUSION
From the test results obtained during the experimental work it is clear that the strength of fiber reinforced concrete
significantly higher than the normal concrete. The crack formation is also very small in fiber specimen compared to non-
fiber specimen.
The highest compressive strength of sample G0.30-S0.50 was observed 38% at 28 days compared with the conventional
concrete mix G0-S0. The increasing percentage of compressive strength of samples G0.20-S0.40,G0.25-S0.45, G0.30-
S0.50 and G0.35-S0.55.are 11.10%, 27.87%, 38% and 4.41% respectively at 28 days compared with the control concrete
mix.
The highest flexural strength of sample G0.30-S0.50 was found 17.88% at 28 days greater than conventional concrete G0-
S0. Three other samples, G0.20-S0.40, G0.25-S0.45, G0. 35-S0.55 also showed the higher flexural strength as compare to
Effect of Steel Fiber and Glass Fiber on Mechanical Properties of Concrete (IJSTE/ Volume 3 / Issue 03 / 032)
All rights reserved by www.ijste.org
178
conventional concrete G0-S0. These increments are 7.28%, 11.92% and 8.27% at 28 days. All results are greater than the
conventional concrete mix G0-S0.
The highest split tensile strength of sample G0.30-S0.50 was increased 18.36% compared with the conventional concrete
and samples G0.20-S0.40, G0.25-S0.45, G0.35-S0.55 gives split tensile strength slightly higher than the conventional
concrete mix G0-S0. The increasing percentage of split tensile strength of G0.20-S0.40, G0.25-S0.45, G0.30-S0.50 and
G0.35-S0.55 are 10.20%, 12.24%, 18.36% and 3.60% respectively.
When increase the percentage of fiber in hybrid fiber concrete then decrease the workability of hybrid reinforced concrete.
REFERENCES
January 2014. [2] AmitRai, Dr. Y.P Joshi “Applications and Properties of Fiber Reinforced Concrete” International Journal of Engineering Research and Applications
Volume 4, Issue 5 (Version 1), May 2014.
[3] PatilShweta, RupaliKavilkar “Study of Flexural Strength in Steel Fiber Reinforced Concrete” International Journal of Recent Development in Engineering and Technology Volume 2, Issue 5, May 2014.
[4] Ahsana Fatima K M &Shibi Varghese, “Behavioral Study of Steel Fiber and Polypropylene Fiber Reinforced Concrete” International Journal of
Research in Engineering & Technology” Volume 2, Issue 10, October 2014. [5] S. Sharmila and G.S. Thirungnanam “Behavior of Reinforced Concrete Flexural Member with Hybrid Fiber under Cyclic Loading” International Journal of
Science, Environment and Technology, Vol. 2, No 4, 2013.
[6] RonakPrakashkumar Patel, JayrajVinodsinhSolanki, JayeshkumarPitroda “A Study on Glass Fiber as an Additive in Concrete to increase Concrete Tensile Strength” International Global Research Analysis, Volume 2, Issue 2, Feb 2013.
[7] C. SelinRavikumar and T.S. Thandavamoorthy “Glass Fibre Concrete: Investigation on Strength and Fire Resistant Properties” IOSR Journal of
Mechanical and Civil Engineering (IOSR-JMCE) Volume 9, Issue 3, Sept-Oct 2013. [8] Divyeshkumar D. Paradava, Prof. JayeshkumarPitroda “Utilization of Artificial Fibres in Construction Industry: A Critical Literature Review” International
Journal of Engineering Trends and Technology (IJETT) – Volume 4 Issue 10 - Oct 2013.
[9] Kavita S Kene, Vikrant S Vairagade and SatishSathawane “Experimental Study on Behavior of Steel and Glass Fiber Reinforced Concrete Composites” Bonfring International Journal of Industrial Engineering and Management Science, Vol. 2, No. 4, December 2012.
All rights reserved by www.ijste.org
173
Mechanical Properties of Concrete
Nitin Verma Hemant Kumar
Department of Civil & Environmental Engineering Department of Civil & Environmental Engineering
National Institute of Technical Teachers, Training and
Research, Bhopal, India
Research, Bhopal, India
National Institute of Technical Teachers, Training and Research, Bhopal, India
Abstract
Fibers are generally used as resistance of cracking and strengthening of concrete. This paper presents the effects of crimped steel
fibers and alkali resistance glass fibers on the mechanical properties of concrete. Experimental programme consist of conducting
compressive strength test, flexural strength test and split tensile strength on hybrid reinforced concrete. Two types of fibers used
are crimped steel fiber of length 45mm with aspect ratio 50 and glass fiber of length 12 mm with aspect ratio 857.1. The main
aim of this experiment is to study the strength properties of hybrid reinforced concrete of M20 grade with 0.2%, 0.25%, 0.30%,
0.35% of glass fiber containing by weight of cement and 0.40%, 0.45%, 0.50%, 0.55% of steel fibers containing by volume of
concrete. From the experimental results it was observed that samples containing steel and glass fibers showed enhanced
properties compared to the normal specimen.
Keywords: Crimped Steel Fibre, Glass Fibers, Flexural Strength, Compressive Strength, Splite Tensile Strength Hybrid
Fiber Reinforced Concrete
I. INTRODUCTION
Concrete is a most commonly used construction material. The utilization of concrete or cement based material is quite ancient.
With the passage of time the significance of concrete has grown and the limitations of concrete have been gradually cut, making
the concrete more durable with a higher performance. To improve the tensile strength of concrete, fiber reinforcement was
added. The introduction of Fiber Reinforced Concrete (FRC) is an important achievement in concrete technology. Fibers are
added to improve the strength parameters of the concrete. Fiber as reinforcement is effective to improve the flexural strength and
compressive strength of concrete. In recent years, researchers have realized the benefits of combining fibers, in term of obtaining
synergy and improving the response of composite material. A composite can be referred to as hybrid, if two or more types of
fibers are reasonably combined to produce a composite mass
II. EXPERIMENTAL PROGRAMME
Materials Used A.
The material selected for this experimental work includes crushed coarse aggregates, Natural River sand as fine aggregate,
cement, crimped steel fiber, alkali resistance glass fiber and water.
Cement 1)
In this experimental work ordinary Portland cement (OPC) of 53 grade of Ultratech brand was used for all concrete mixes. The
physical properties of cement are as given in Table.1. Table – 1
Physical Properties of Cement
1 Specific gravity 3.15 IS:4031
2 Standard consistency 35% IS:4031 & IS269
3 Initial setting time 35 Min. >30, IS:4031 & IS 269
4 Final setting time 300 Min. <600, IS:4031 & IS269
Effect of Steel Fiber and Glass Fiber on Mechanical Properties of Concrete (IJSTE/ Volume 3 / Issue 03 / 032)
All rights reserved by www.ijste.org
174
Fine Aggregate 2)
Locally available river sand passing through 4.75mm sieve was used as fine aggregate for research work. The physical properties
of fine aggregate are as given in Table 2. Table – 2
Physical Properties of fine aggregate
S. No. Properties Value
1 Specific gravity 2.65
2 Fineness modulus 3
Coarse Aggregate 3)
The coarse aggregates used for the work is of 20mm maximum and 10mm minium size which is free from deleterious materials.
It should be hard, strong, dense, durable and clean. Table – 3
Physical Properties of Coarse aggregate
S. No. Properties Value
1 Specific gravity 2.70
2 Fineness modules 4
Water 4)
Potable water is used for casting of specimen and as well as curing of specimen as per IS: 456 –2000. Water should be free from
acids, oil, alkalies, vegetables or other organic impurities.
Steel Fiber 5)
In this investigation crimped steel fibers have been used. Steel fibers were obtained from Bakul Wires Private Ltd. Dewas, M.P.
The properties and specification of steel fibers are mentioned in Table 4. (Fig. 1) Table – 4
Properties of Steel fibers
S. No. Properties Specifications
3 Diameter (mm) 0.90
4 Length (mm) 45
5 Aspect ratio 50
Glass Fiber 6)
In this investigation the Alkali Resistance Glass fibers with 12mm cut length and having tensile strength of 1700Mpa is used.
The glass fibers were obtained from International Trade Company Mumbai, Maharashtra. The properties of glass fiber are
mentioned in Table 5 (Fig. 2). Table – 5
Properties of Glass fibers
S. No. Properties Specifications
1 Specific Gravity 2.68
3 Diameter (μ) 14
4 Length (mm) 12
5 Modulus (GPa) 72
6 Percentage Elongation 2.3
Fig. 1: Steel Fibres Fig. 2: Glass Fibres
Effect of Steel Fiber and Glass Fiber on Mechanical Properties of Concrete (IJSTE/ Volume 3 / Issue 03 / 032)
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175
Experimental Methodology B.
In this study, M20 grade of concrete was used. The concrete mix design was done as per IS:102062-2009. The water cement-
ratio adopted is 0.55 for the proper workability of concrete. Cubes, Beams and Cylinders were casted with addition of glass and
steel fibers in different proportions. The mix proportions of M20 grade concrete are shown in Table 5. Glass and steel fibers
were used in different proportions are given in Table 7. Glass fibers were added by weight of cement and steel fibers were added
by volume of concrete in the concrete mix. Table – 6
Concrete Mix Proportions
Materials Quantity Proportion
Coarse Aggregate 1273 Kg/ m3 3.3
Water 212 Kg/ m3 0.55
Table – 7
Percentage variations of fibers
Mixes Glass fibers by weight of cement (%) Steel fibers by volume of concrete (%)
1 0 0
2 0.20 0.40
3 0.25 0.45
4 0.30 0.50
5 0.35 0.55
Compressive Strength Test 1)
For compressive strength test, cubes samples of size 150x150x150 mm were casted for M20 grade of concrete. The mould were
filled with concrete prepared with different percentage variation of glass and steel fiber such as G0-S0, G0.20-S0.40, G0.25-
S0.45, G0.30-S0.50, G0.35-S0.55. Compaction was done by tamping rod, top surface of sample were leveled and finished. After
7 and 28 days of curing these cube samples were tested on universal testing machine as per IS: 516-1959. In each catagories
three cubes tested and there average value is reported failure load. The compressive strength was calculated as- (Fig. 3)
Compressive Strength = Failure Load/ Cross sectional area
Split Tensile Strength Test 2)
For split tensile strength, cylindrical specimen of size 150mm diameter and 300mm length were casted. These specimens were
left for curing and tested under universal testing machine after 7 and 28 days of age. In each categories three cylindrical samples
are tested and there average value is reported. The split tensile strength was calculated as-
Split Tensile Strength= 2P/π DL
Where- P= Failure load, D= Diameter of cylinder, L= Length of cylinder
Fig. 3: Compressive Strength Test Fig. 4: Split Tensile Strength Test
Flexural Strength Test 3)
For flexural strength test, beam specimen of size 100x100x500 mm were casted in same percentage content of glass and steel
fiber used in preparation of cube samples. Beam specimens are demoulded after 24hours and they were allowed to cure for 7 and
28 days. The beam specimen were tested under two point loading over an effective span of 400mm on universal testing machine
as per IS:516-1959. In each categories three beam samples are tested and there average value is repoted. The flexural strength
was calculated as- (Fig. 4)
Effect of Steel Fiber and Glass Fiber on Mechanical Properties of Concrete (IJSTE/ Volume 3 / Issue 03 / 032)
All rights reserved by www.ijste.org
176
Flexural Strength= (P x L)/(b x d2)
Where- P= Failure Load
b= Width of specimen
d= depth of specimen
Experimental Results C.
Following tables (8, 9, 10) gives compressive, splite tensile strength and flexural strength test results for M20 grade of concrete
with G0-S0, G0.20-S0.40, G0.25-S0.45, G0.30-S0.50, G0.35-S0.55 glass and steel fibers and these results are graphically
represented in figure 6, 7 and 8. Table – 8
Compressive strength Test
Mixes Glass Fiber by Weight of Cement (%) Steel Fiber by Volume of Concrete (%) Compressive Strength (N/mm2)
7 days 28 days
Table – 9
Split Tensile Strength Test
Mixes Glass Fiber by Weight of Cement (%) Steel Fiber by Volume of Concrete (%) Split Tensile Strength (N/mm2)
7 days 28 days
1 0 0 1.78 2.45
2 0.20 0.40 1.94 2.70
3 0.25 0.45 2.03 2.75
4 0.30 0.50 2.10 2.90
5 0.35 0.55 1.84 2.54
Effect of Steel Fiber and Glass Fiber on Mechanical Properties of Concrete (IJSTE/ Volume 3 / Issue 03 / 032)
All rights reserved by www.ijste.org
177
Table – 10
Flexural Strength Test
Mixes Glass Fiber by Weight of Cement (%) Steel Fiber by Volume of Concrete (%) Flexural Strength (N/mm2)
7 days 28 days
III. CONCLUSION
From the test results obtained during the experimental work it is clear that the strength of fiber reinforced concrete
significantly higher than the normal concrete. The crack formation is also very small in fiber specimen compared to non-
fiber specimen.
The highest compressive strength of sample G0.30-S0.50 was observed 38% at 28 days compared with the conventional
concrete mix G0-S0. The increasing percentage of compressive strength of samples G0.20-S0.40,G0.25-S0.45, G0.30-
S0.50 and G0.35-S0.55.are 11.10%, 27.87%, 38% and 4.41% respectively at 28 days compared with the control concrete
mix.
The highest flexural strength of sample G0.30-S0.50 was found 17.88% at 28 days greater than conventional concrete G0-
S0. Three other samples, G0.20-S0.40, G0.25-S0.45, G0. 35-S0.55 also showed the higher flexural strength as compare to
Effect of Steel Fiber and Glass Fiber on Mechanical Properties of Concrete (IJSTE/ Volume 3 / Issue 03 / 032)
All rights reserved by www.ijste.org
178
conventional concrete G0-S0. These increments are 7.28%, 11.92% and 8.27% at 28 days. All results are greater than the
conventional concrete mix G0-S0.
The highest split tensile strength of sample G0.30-S0.50 was increased 18.36% compared with the conventional concrete
and samples G0.20-S0.40, G0.25-S0.45, G0.35-S0.55 gives split tensile strength slightly higher than the conventional
concrete mix G0-S0. The increasing percentage of split tensile strength of G0.20-S0.40, G0.25-S0.45, G0.30-S0.50 and
G0.35-S0.55 are 10.20%, 12.24%, 18.36% and 3.60% respectively.
When increase the percentage of fiber in hybrid fiber concrete then decrease the workability of hybrid reinforced concrete.
REFERENCES
January 2014. [2] AmitRai, Dr. Y.P Joshi “Applications and Properties of Fiber Reinforced Concrete” International Journal of Engineering Research and Applications
Volume 4, Issue 5 (Version 1), May 2014.
[3] PatilShweta, RupaliKavilkar “Study of Flexural Strength in Steel Fiber Reinforced Concrete” International Journal of Recent Development in Engineering and Technology Volume 2, Issue 5, May 2014.
[4] Ahsana Fatima K M &Shibi Varghese, “Behavioral Study of Steel Fiber and Polypropylene Fiber Reinforced Concrete” International Journal of
Research in Engineering & Technology” Volume 2, Issue 10, October 2014. [5] S. Sharmila and G.S. Thirungnanam “Behavior of Reinforced Concrete Flexural Member with Hybrid Fiber under Cyclic Loading” International Journal of
Science, Environment and Technology, Vol. 2, No 4, 2013.
[6] RonakPrakashkumar Patel, JayrajVinodsinhSolanki, JayeshkumarPitroda “A Study on Glass Fiber as an Additive in Concrete to increase Concrete Tensile Strength” International Global Research Analysis, Volume 2, Issue 2, Feb 2013.
[7] C. SelinRavikumar and T.S. Thandavamoorthy “Glass Fibre Concrete: Investigation on Strength and Fire Resistant Properties” IOSR Journal of
Mechanical and Civil Engineering (IOSR-JMCE) Volume 9, Issue 3, Sept-Oct 2013. [8] Divyeshkumar D. Paradava, Prof. JayeshkumarPitroda “Utilization of Artificial Fibres in Construction Industry: A Critical Literature Review” International
Journal of Engineering Trends and Technology (IJETT) – Volume 4 Issue 10 - Oct 2013.
[9] Kavita S Kene, Vikrant S Vairagade and SatishSathawane “Experimental Study on Behavior of Steel and Glass Fiber Reinforced Concrete Composites” Bonfring International Journal of Industrial Engineering and Management Science, Vol. 2, No. 4, December 2012.
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