Unit 4_Part 1 CSE2001 Exception Handling and Function Template and Class Temp...
Rubberized concrete a review
1. Mechanical Performance of Rubber Concrete:
A Review
Firoz Mahmud 1, *, Muhammad Harunur Rashid2, *, Sobura Khatun 3
1 Postgraduate Student, Department of Civil Engineering, Khulna University of Engineering & Technology, Khulna,
Bangladesh
2 Professor, Department of Civil Engineering, Khulna University of Engineering &
Technology, Khulna, Bangladesh
3 Design Engineer, Engineering Solution, Dhaka, Bangladesh
International Conference on
Climate Resilient Construction and Building Materials
(ICCRCBM - 2023)
3. BACKGROUND
One of the biggest environmental issues facing the world today is
waste disposal and management. Waste tire rubber is one of the
major waste facing the globe today.
According to a report by the Tire Industry Project for the World
Business Council for Sustainable Development, 1 billion waste
tires are generated every year.
According to a Federal Highway Administration Research and
Technology report, approximately 280+ million used tires are
discarded each year. Only about 30 million of these tires are
retreaded or reused, leaving the remaining 250 million scrap tires to
be managed in USA.
4. 42%
29%
15%
2%
12%
Recovery rate of ELTs worldwide in 2022 (SPREP Library Cataloguing-in-
publication data )
Materials Recovery
Collected undertedminated end use
Energy recovery
Civil Enginnering and backfilling use
others ( not recovered and landfilled)
6. According to European Waste Catalogue (2002) these tyres are non-
dangerous wastes, consist of synthetic and natural rubber, sulphur
and sulphur compounds, silica, phenolic resin, oil, fabric (polyester,
nylon), petroleum waxes, pigments, carbon black, fatty acids, inert
materials and steel wires.
The most common and cost-effective method of decomposing waste
tires is now burning them. However, because this method produces
such unacceptable levels of air pollution due to the release of
significant amounts of greenhouse gases during combustion, it has
also been made illegal in many countries.
Introduction
7. According to European Waste Catalogue (2002) these tyres are non-
dangerous wastes, consist of synthetic and natural rubber, sulphur
and sulphur compounds, silica, phenolic resin, oil, fabric (polyester,
nylon), petroleum waxes, pigments, carbon black, fatty acids, inert
materials and steel wires.
Recently, several researchers have tried to replace some of the
rubber aggregate in concrete with natural aggregates.
Introduction
8. What is Rubberized concrete?
Rubberized concrete is a type of concrete that incorporates waste rubber
particles in place of some or all of the aggregates (e.g., fine and course
aggregate) typically used in conventional concrete mixtures.
There are different methods of incorporating rubber particles into
concrete, such as the dry mix method, the wet mix method, and the
pre-coating method. The amount of rubber added to the mixture can
vary depending on the desired properties of the final product and the
availability of rubber waste.
9. Sl
no
Paper title Author
names
Materials Mix proportion and sample
size
Result
1 Effect Of Rubber Treatment
on Compressive Strength and
Thermal Conductivity of
Modified Rubberized
Concrete
Rana
Hashim
Ghedan &
Dina
Mukheef
Hamza
Mix ratio of control strength concrete was
1:1.5:3 (cement: sand: gravel) and w/c was
used .45. and mix ratio of rubberized
concrete was 1:1.5:2.526:0.15 (cement: sand:
gravel: rubber crumb).
15% of the volume of coarse aggregate was
replaced by rubber crumb (maximum size
10mm).
Rubber particle was treated by SILAN as
coupling agent.
The Compressive strength decreased after
replacing 15% of coarse aggregate by rubber
crumb was 49.8% from normal concrete.
The thermal conductivity decreased after replacing
15% of coarse aggregate by rubber crumb was
26.7% from normal concrete.
To improve this property, the SILANE used as a
coupling agent to the surface of rubber particles
and it was found very effective so that
compressive strength reduced 12.9% and thermal
conductivity reduced 17.8% by about from
traditional concrete.
2 Rubber concrete mechanical
and Dynamical properties.
Najib
N.Gerges,
Camille
A.Issa &
Samer
A.Fawaz
4 mix ratio was used in this research and
their targeted strength was 30Mpa, 35Mpa,
40Mpa , 50Mpa as control strength concrete.
0%,5%, 10%, 15% & 20 % of the weight of
fine aggregate was replaced by rubber
powder.
Sample size: Cylinder 150mm by 300mm
(100nos) ASTM C192 nad 152mm dia and 63.5
mm thickness disc for impact test (ACI 544)
Compressive strength and tensile strength
decreased after increasing of percentage of rubber
power in concrete.
Impact strength
The possibility of concrete cracking under an
impact drop load has increased after sand was
replaced by rubber powder. But In 50Mpa
concrete, the replacement of 5% of fine aggregate
by rubber powder is more effective than others.
10. Sl
no
Paper title Author names Materials Mix proportion and sample size Result
3 Rubber concrete
mechanical and Dynamical
properties.
Neil N. Eldin
and Ahmed B
Senouci
25% ,50% 75% & 100% the volume of fine
aggregate was replaced by Crumb rubber.
25% ,50% 75% & 100% the volume of
Course aggregate was replaced by Edger
Chips (38mm,25mm,19mm down) and
Preston Rubber ( 25mm, 2mm down).
performed tests on rubberized concrete, using tyre
chips and crumb rubber as aggregate substitute of
sizes 38mm, 25mm and 19mm exhibited reduction
in compressive strength by 85% and tensile
splitting strength by 50% but concluded its ability
to absorb a large amount of plastic energy under
tensile and compressive loads
4 A Study on Rubberized
Concrete
Abhishek Rana
and Khushbu
Yadav
M25 grade concrete is used for testing and
percentages of rubber aggregates was
0%,5%, 10% and15% mixed in volume
Workability deceased with increasing of
percentage of rubber crumb in concrete.
5% replacement of rubber crumb to aggregate
gives better compressive strength of concrete
5 Experimental Study of
Rubberized concrete
S. D. Jamdar
and U.S Ansari
Mix ratio of control strength concrete was
1:2.11:3.7 (cement: sand: gravel) and w/c
was used .45.
Size of sample for flexural test was
100mmX100mm X 500mm
M25 grade concrete is used for testing and
percentages of rubber aggregates was
0%,5%, 10% and15% mixed in volume.
flexural strength was increased in strength with
increasing in rubber aggregate in concrete. But,
after above 5% of rubber mix concrete the strength
was decreased with increasing amount rubber
crumb.
6 Experimental Study of
Crumb Rubber in Concrete
Bhavik Bhatt,
Parth Khandla
and
Tausif Kauswala
Mix ratio of control strength concrete was
1:1.17:2.5 (cement: sand: gravel) and w/c
was used 0.37.
0%,2.5%,5%,7.5%,10% of the volume of
fine aggregate was replaced by rubber
crumb
The Compressive strength decreased after
increasing rubber crumb in concrete
The flexural strength found optimum when 5% of
Crumb rubber is replaced by fine aggregate.
The water Absorption increases with the increase in
proportion of the crumb rubber.
13. Impact energy absorbed ultimately or impact resistance vs rubber contents. (Aslam el.at.2014)
14. CONCLUSIONS
The compressive strength is decreases with increasing
rubber crumb with compare to normal concrete
Flexural strength is increase up to 5% rubber crumb use
as replacement of fine aggregate then rubberized
concrete strength decrease with percentage of rubber
increase.
Energy Adsorption capacity is increased with increase
rubber crumb or rubber fibre as replacement of fine or
coarse aggregate.
The water Absorption of sample will be increased with
increasing in proportion of the crumb rubber in
concrete.
