International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395 -0056
Volume: 04 Issue: 04 | Apr -2017
p-ISSN: 2395-0072
www.irjet.net
Roller-compacted concrete (RCC) and its application in modern world of Technology Shah Faisal Saleh, Faisal Farooq Rather, Malik Jasif Jabbar Dept of Civil Engineering, Islamic University of Science and Technology, Awantipora, Jammu and Kashmir, India ---------------------------------------------------------------------***--------------------------------------------------------------------Key Words: Innumerable, compressive, Aggregate,
Abstract: Concrete leads as the most frequently used
construction material in the world because of its innumerable
Consolidated, Compacted, Zero-Slump, Consistency,
properties. Concrete is weak in tension almost one tenth of its
Segregation, Dowel bars.
compressive strength. Roller-compacted concrete (RCC) is a
1. INTRODUCTION
stiff mixture of aggregates, cementitious materials, and water
Roller compacted concrete is a zero-slump concrete
with zero slump. RCC is consolidated or compacted in the fresh
consisting
state by use of a roller with or without vibration. RCC typically
of
dense-graded
aggregate
and
sand,
cementations materials, and water. Because it contains a
is placed with asphalt paving equipment in thicknesses of 4 to
relatively small amount of water, it cannot be placed by the
8 inches for pavement application. RCC has gained the
same methods used for conventional (slump) concrete.
attention of the paving industry in recent years and is
Roller compacted concrete has the same basic ingredient as
becoming more popular day by day because of its low cost,
conventional concrete: cement, water, and aggregates. The
rapid construction, and durable performance. The energy
basic difference is that roller compacted concrete is a much
required to compact RCC mixtures to their maximum densities
drier mix with practically zero slumps. It is drier, and looks
is much greater than for concrete of measurable slump. The
and feels like damp gravel. It does not require any forms,
largest difference between RCC mixtures and conventional
dowels, reinforcing steel & finishing. Its production provides
concrete mixtures is that RCC has a higher percentage of fine
a rapid method of concrete. The properties of RCC mainly
aggregates, which allows for tight packing and consolidation
depend on quality of raw materials used, the cementations
.Fresh RCC is comparative stiff than typical zero-slump
material content, the degree of compaction and the quality
conventional concrete. Its consistency allows it to remain
control measures. For effective compaction, the mix should
stable under vibratory rollers, yet wet enough to permit
be sufficiently dry so that it can support the load of vibratory
adequate mixing and distribution of paste without
equipment and on the other side it should be sufficiently wet
segregation. Some time admixtures or materials like fly ash
also to allow adequate distribution of paste binder
are used to concrete to reduce the water content and produce
throughout the mass. Also, the method of compaction is
more dry mix. The main advantage of roller compacted
different than the conventional compacted concrete and it is
concrete is that it can be constructed without the use of dowel
compacted by vibratory or pneumatic-tired rollers. The
bars and we can also make a construction which does not
objective of mix design is to produce a roller- compacted
require construction joints. RCC can be used in many areas of
concrete mix that has sufficient paste volume to coat the
construction like in dams, pavement construction etc. This
aggregates in the mix and to fill in the voids between them.
paper highlights the applications and materials required in
Any of the basic roller compacted concrete proportioning
roller compacted concrete.
methods like those based on concrete consistency testing, and soil compaction testing may be used for mix design. RCC
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