Mahatma Education Society’s
Pillai HOC College of Engineering and Technology, Rasayani
Category:
Engineering & Technology
Level : UG
Modified Road Pavements By Using Waste Rubber And Asphalt
By Sheshil Patel, Anand Misal, Amey Sawant and Tushar Mulik
Abstract
Graphical Representation
• Due to overall development new roads are being constructed and the ever increasing
population has raised the vehicular density from last few decades with annual increase in
15-20% of waste tires.
• The research is intended to study the feasibility of waste tire rubber as a blending
material in bitumen which is used for the construction of bituminous concrete wearing
coarse layer.
• This research also specifies the various factors that are improved by adding crumb
rubber to the conventional bituminous concrete mix, achieving economy, providing a
recycling opportunity and achieving environmental gains.
Rubber Content(%) Vs marshal Stability
14
12.88
marshal Stability
12
12.51
12.07
11.43
10
10.97
9.675
8
6
4
2
0
0
5
10
15
20
25
Rubber Content (%)
Objective
Rubber Content (%) Vs Flow Value
3.3
3.2
flow value
3
3
2.9
2.9
2.8
2.8
2.7
2.7
2.6
2.5
2.4
0
Test Results
Introduction
• For aggregates
Design Methodology
From waste tires to crumb rubber
modifier
RESULTS
air voids (%)
TEST
IMPACT VALUE
15.26
FLAKINESS INDEX
8.59
ELONGATION INDEX
8.00
SIEVE SIZE MM
16 - 6
6-3
3-0
SPECIFIC GRAVITY
2.875
2.848
2.825
WATER ABSORPTION %
1.711
1.767
2.314
Crumb Robber
(0.2mm to 2mm)
VG-30
Mixing of Bitumen, Crumb rubber and
aggregate
70
• For bitumen
PROPERTIE VG – 30
S
GRADE
BITUME
N
PENETRATI 54
ON VALUE
@ 270C,5
S,100GM
SOFTENIN 49.6
G POINT
(RING BALL
TEST)
% OF RUBBER CONTENT IN BITUMEN
5
10
15
20
For this research work aggregate, bitumen and crumb of scrap tire was used. Different
properties of bitumen and aggregate have been tested. Then prepare different mixes of
bitumen and crumb of waste tire rubber with varying proportions by using wet process. The
percentage weight of crumb tire rubber replace for percentage weight of bitumen taken for
test. The feasibility of different mixes of bitumen and crumb tire rubber with varying
proportions with aggregate has been tested.
4.02
3.96
3.83
3.69
3.55
3.43
5
10
20
25
Rubber Content (%) Vs VFB (%)
69.63
67.88
67.01
65.05
62.35
57.01
25
40
20
49.5
40.1
36.33
29.33
21.6
10
0
0
5
10
15
20
25
RUBBER CONTENT (%)
53.4
62.3
64.5
71.6
79.7
Conclusions
SIEVE SIZE (MM) WEIGHT IN (gms)
30%
16 – 6
339
15%
6–3
169
53%
3–0
598
2%
Aggregate dust
23
5.88%
Bitumen
71
TOTAL
1200
• After careful evaluation of the properties and taking various tests as
per standards the results shown by 10% addition of rubber crumbs
has best suitability for blending it with bitumen. This will help to
dispose the waste tire rubber in a proper way and solve the problem
of environmental concerns up to a certain extent.
Future Scope
PERCENT 5
AGE(%)
10
15
20
25
WEIGHT(
gms)
7
11
14
18
• Marshal Stability Test (75 Blows Each side)
Proving Ring Factor =0.05230 N
Rubber Wt. of Sample Bulk
Conten
Sp. Gr.
t (%)
Of
Air
Water
Sample
(gm) (gm)
Air
Voids
(%)
VMA
(%)
VFB
(%)
marshal
stability
Flow
Value
0
1192.5 710.5
2.474
4.02
13.24
69.63
12.88
3.23
5
1201. 719.6
6
2.492
3.96
12.33
67.88
12.51
3.0
10
1211.5
2.506
3.83
11.61
67.01
12.07
2.9
15
1215. 734.9
5
2.527
3.69
10.56
65.05
11.43
3.1
20
1224. 745.6
3
2.552
3.55
9.43
62.35
10.97
2.7
25
1235. 757.2
5
2.584
3.43
7.98
57.01
9.675
2.8
728
15
Rubber content (%)
50
Experimentation
Tests performed on aggregates and bitumen as per IS code 2286 and MORT & H
For aggregate
 Impact value
 Flakiness and elongation index
 Specific Gravity
 Water Absorption
For Bitumen
 Standard Penetration test
 Softening Point test
 marshal’s Stability test
 Stripping value test
Materials required for performing the test
 Bitumen – VG-30
 Aggregates – 16mm and less
 Crumb rubber – 0.2mm – 2mm
25
30
PERCENTAGE
3.55
20
Rubber Content (%) Vs Air Voids (%)
60
• Rubber content
Dry Process
10
15
rubber content (%)
5
80
• Mix Proportion for marshal stability mould for
Conventional Bituminous concrete Mix
Cryogenic Grinding
4.1
4
3.9
3.8
3.7
3.6
3.5
3.4
3.3
3.2
3.1
0
VFB (%)
• For a country like India an efficient road network is necessary for national integration,
industrial development and as well as for socio-economic development.
• As vehicles are used frequently the wear and tear of their tires is obvious. Due to wear
and tear of tires the life of tire reduces and at last it becomes useless.
• So an attempt to use this waste tire rubber for improving the properties of bitumen by
blending it with crumb rubber and ultimately a new method to be introduced to reduce
pollution problems and protect our environment.
• The use of waste tire rubber in bitumen, it will definitely be environmentally beneficial, it
can improve the bitumen binder properties and durability, and it will also have a potential
to be cost effective..
• After adding the waste tire rubber in bitumen various tests are performed and the
properties of the bitumen will be checked.
Wet Process
3.1
3.1
Use of waste tire rubber
Reducing the risk of environment
Cost effectiveness and sustainable road infrastructure
Increasing the drainage properties of road pavement
Decreases the maintenance cost of road pavement
Ambient Grinding
3.23
• The scope of the research conducted in this paper will conclude the
three key benefits of recycled/reused materials i.e. the balance of
engineering, economics and environment.
• The involvement of crumb rubber in this project results into the
decrease in small amount of waste generated by the tire, and will
reduce the risk of wild fire at the disposal site of waste tire, which
may sometimes lead to uncontrolled environmental pollution.
• Engineering benefits like increase in strength of pavement, Skid
resistance leading to minimising the cause of accidents increasing
traffic safety, better night and day visibility, increase in life of
pavement, rapid drainage of surface water, better adhesion between
aggregate and binder, prevention of cracking and reflective
cracking.
References
• David Lo Presti, “Recycled tire Rubber Modified Bitumen For Road
Asphalt Mixtures”, Construction and Building Materials.
• Tomas U. Ganiron Jr. ,“Waste tire As An Asphalt Cement Modifier For
Road Pavement”, International Journal of u-and e-Service, Science and
Technology..
• Mane Priyanka Arun, Petkar Deepak Ganesh, Bhosale S.M, “Laboratory
Evaluation Of Usage Of Waste tire Rubber Bituminous Concrete”,
International Journal of Scientific and Research Publications.
Mahatma Education Society’s
Pillai HOC College of Engineering and Technology, Rasayani
Category:
Engineering & Technology
Level : UG
Modified Road Pavements By Using Waste Rubber And Asphalt
By Sheshil Patel, Anand Misal, Amey Sawant and Tushar Mulik
Abstract
Graphical Representation
• Due to overall development new roads are being constructed and the ever increasing
population has raised the vehicular density from last few decades with annual increase in
15-20% of waste tires.
• The research is intended to study the feasibility of waste tire rubber as a blending
material in bitumen which is used for the construction of bituminous concrete wearing
coarse layer.
• This research also specifies the various factors that are improved by adding crumb
rubber to the conventional bituminous concrete mix, achieving economy, providing a
recycling opportunity and achieving environmental gains.
Rubber Content(%) Vs marshal Stability
14
12.88
marshal Stability
12
12.51
12.07
11.43
10
10.97
9.675
8
6
4
2
0
0
5
10
15
20
25
Rubber Content (%)
Objective
Rubber Content (%) Vs Flow Value
3.3
3.2
flow value
3
3
2.9
2.9
2.8
2.8
2.7
2.7
2.6
2.5
2.4
0
Test Results
Introduction
• For aggregates
Design Methodology
From waste tires to crumb rubber
modifier
RESULTS
air voids (%)
TEST
IMPACT VALUE
15.26
FLAKINESS INDEX
8.59
ELONGATION INDEX
8.00
SIEVE SIZE MM
16 - 6
6-3
3-0
SPECIFIC GRAVITY
2.875
2.848
2.825
WATER ABSORPTION %
1.711
1.767
2.314
Crumb Robber
(0.2mm to 2mm)
VG-30
Mixing of Bitumen, Crumb rubber and
aggregate
70
• For bitumen
PROPERTIE VG – 30
S
GRADE
BITUME
N
PENETRATI 54
ON VALUE
@ 270C,5
S,100GM
SOFTENIN 49.6
G POINT
(RING BALL
TEST)
% OF RUBBER CONTENT IN BITUMEN
5
10
15
20
For this research work aggregate, bitumen and crumb of scrap tire was used. Different
properties of bitumen and aggregate have been tested. Then prepare different mixes of
bitumen and crumb of waste tire rubber with varying proportions by using wet process. The
percentage weight of crumb tire rubber replace for percentage weight of bitumen taken for
test. The feasibility of different mixes of bitumen and crumb tire rubber with varying
proportions with aggregate has been tested.
4.02
3.96
3.83
3.69
3.55
3.43
5
10
20
25
Rubber Content (%) Vs VFB (%)
69.63
67.88
67.01
65.05
62.35
57.01
25
40
20
49.5
40.1
36.33
29.33
21.6
10
0
0
5
10
15
20
25
RUBBER CONTENT (%)
53.4
62.3
64.5
71.6
79.7
Conclusions
SIEVE SIZE (MM) WEIGHT IN (gms)
30%
16 – 6
339
15%
6–3
169
53%
3–0
598
2%
Aggregate dust
23
5.88%
Bitumen
71
TOTAL
1200
• After careful evaluation of the properties and taking various tests as
per standards the results shown by 10% addition of rubber crumbs
has best suitability for blending it with bitumen. This will help to
dispose the waste tire rubber in a proper way and solve the problem
of environmental concerns up to a certain extent.
Future Scope
PERCENT 5
AGE(%)
10
15
20
25
WEIGHT(
gms)
7
11
14
18
• Marshal Stability Test (75 Blows Each side)
Proving Ring Factor =0.05230 N
Rubber Wt. of Sample Bulk
Conten
Sp. Gr.
t (%)
Of
Air
Water
Sample
(gm) (gm)
Air
Voids
(%)
VMA
(%)
VFB
(%)
marshal
stability
Flow
Value
0
1192.5 710.5
2.474
4.02
13.24
69.63
12.88
3.23
5
1201. 719.6
6
2.492
3.96
12.33
67.88
12.51
3.0
10
1211.5
2.506
3.83
11.61
67.01
12.07
2.9
15
1215. 734.9
5
2.527
3.69
10.56
65.05
11.43
3.1
20
1224. 745.6
3
2.552
3.55
9.43
62.35
10.97
2.7
25
1235. 757.2
5
2.584
3.43
7.98
57.01
9.675
2.8
728
15
Rubber content (%)
50
Experimentation
Tests performed on aggregates and bitumen as per IS code 2286 and MORT & H
For aggregate
 Impact value
 Flakiness and elongation index
 Specific Gravity
 Water Absorption
For Bitumen
 Standard Penetration test
 Softening Point test
 marshal’s Stability test
 Stripping value test
Materials required for performing the test
 Bitumen – VG-30
 Aggregates – 16mm and less
 Crumb rubber – 0.2mm – 2mm
25
30
PERCENTAGE
3.55
20
Rubber Content (%) Vs Air Voids (%)
60
• Rubber content
Dry Process
10
15
rubber content (%)
5
80
• Mix Proportion for marshal stability mould for
Conventional Bituminous concrete Mix
Cryogenic Grinding
4.1
4
3.9
3.8
3.7
3.6
3.5
3.4
3.3
3.2
3.1
0
VFB (%)
• For a country like India an efficient road network is necessary for national integration,
industrial development and as well as for socio-economic development.
• As vehicles are used frequently the wear and tear of their tires is obvious. Due to wear
and tear of tires the life of tire reduces and at last it becomes useless.
• So an attempt to use this waste tire rubber for improving the properties of bitumen by
blending it with crumb rubber and ultimately a new method to be introduced to reduce
pollution problems and protect our environment.
• The use of waste tire rubber in bitumen, it will definitely be environmentally beneficial, it
can improve the bitumen binder properties and durability, and it will also have a potential
to be cost effective..
• After adding the waste tire rubber in bitumen various tests are performed and the
properties of the bitumen will be checked.
Wet Process
3.1
3.1
Use of waste tire rubber
Reducing the risk of environment
Cost effectiveness and sustainable road infrastructure
Increasing the drainage properties of road pavement
Decreases the maintenance cost of road pavement
Ambient Grinding
3.23
• The scope of the research conducted in this paper will conclude the
three key benefits of recycled/reused materials i.e. the balance of
engineering, economics and environment.
• The involvement of crumb rubber in this project results into the
decrease in small amount of waste generated by the tire, and will
reduce the risk of wild fire at the disposal site of waste tire, which
may sometimes lead to uncontrolled environmental pollution.
• Engineering benefits like increase in strength of pavement, Skid
resistance leading to minimising the cause of accidents increasing
traffic safety, better night and day visibility, increase in life of
pavement, rapid drainage of surface water, better adhesion between
aggregate and binder, prevention of cracking and reflective
cracking.
References
• David Lo Presti, “Recycled tire Rubber Modified Bitumen For Road
Asphalt Mixtures”, Construction and Building Materials.
• Tomas U. Ganiron Jr. ,“Waste tire As An Asphalt Cement Modifier For
Road Pavement”, International Journal of u-and e-Service, Science and
Technology..
• Mane Priyanka Arun, Petkar Deepak Ganesh, Bhosale S.M, “Laboratory
Evaluation Of Usage Of Waste tire Rubber Bituminous Concrete”,
International Journal of Scientific and Research Publications.