8MCC/RC ROAD CIVIL WORKS CLASS 1 CONTRACTOR BANGALORE
8M Consultant Contractor / Road Construction EARTH WORKS GSB WBM WMM AMM BCM ASPHALT DRAINS PIPES KERBS PATHS CARRIAGE HIGHWAYS INTERNAL ROADS PARKING LOTS
http://8mcc-infra-road-civil-works.business.site
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Exceptional Quality
At 8mcc/rc, we take great pride in our excellent workmanship, competitive fees, and the ability to deliver outstanding results. Since our founding, we’ve worked hard toward building and maintaining a stellar reputation as a leading Bangalore consultant contractor.
We provide clients with a wide range of services to cover all their needs. No matter what your project might be, our contracting professionals work to bring your dreams to life. Call us today and see what we can do for you.
OUR SERVICES
Quality Work, Great Rates
8mcc/rc is ready to fulfill your contracting needs. Whether you’re looking for a few helpful tips or need an experienced professional to fully manage a project — we’ve got the tools and experience to guarantee success. Browse through our services below, and get in touch for an estimate today.
ASPHALT CONSULTANCY
Customized to Your Preferences
Prime Coat --
Prime coat is an application of low viscous cut-back bitumen to an absorbent surface like granular bases on which binder layer is placed.
It provides bonding between two layers.
Unlike tack coat, prime coat penetrates into the layer below, plugs the voids, and forms a water tight surface.
Surface course --
Surface course is the layer directly in contact with traffic loads and generally contains superior quality materials.
They are usually constructed with dense graded asphalt concrete(AC).
ASPHALT PAVING CONSULTANCY
Efficient. Reliable. Exceptional.
The functions and requirements of this layer are;
It provides characteristics such as friction, smoothness, drainage, etc. Also it will prevent the entrance of excessive quantities of surface water into the underlying base, sub-base and sub-grade.
It must be tough to resist the distortion under traffic and provide a smooth and skid- resistant riding surface.
It must be water proof to protect the entire base and sub-grade from the weakening effect of water.
Binder course --
This layer provides the bulk of the asphalt concrete structure.
It's chief purpose is to distribute load to the base course.
The binder course generally consists of aggregates having less asphalt and doesn't require quality as high as the surface course, so replacing a part of the surface course by the binder course results in more economical design.
GRADES PAVING CONSULTANCY
Efficient. Reliable. Exceptional.
Base course --
The base course is the layer of material immediately beneath the surface of binder course and it provides additional load distribution and contributes to the sub-surface drainage.
It may be composed of crushed stone, crushed slag, and other untreated or stabilized materials.
Sub-Base course --
The sub-base course is the layer of material beneath the base course and the primary functions are to provide structural support, improve drainage, and reduce the intrusion of fines from the sub-grade in the pavement structure.
If the base course is open graded, then the sub-base course with more fines can serve as a filler between sub-grade and the base course.
A sub-base course is not always needed or used.
For example, a pavement constructed over a high quality, stiff sub-grade may not need the additional features offered by a sub-base course.
In such situations, sub-base course may not be provided.
SUB GRADE CONSULTANCY
It’s All in the Details
Sub-grade --
The top soil or sub-grade is a layer of natural soil prepared to receive the stresses from the layers above.
It is essential that at no time soil sub-grade is overstressed.
It should be compacted to the desirable density, near the optimum moisture content.
ROAD CONSULTANCY
Customized to Your Preferences
Failure of flexible pavements--
The major flexible pavement failures are
fatigue cracking,
rutting, and
thermal cracking.
The fatigue cracking of flexible pavement is due to horizontal tensile strain at the bottom of the asphaltic concrete.
The failure criterion relates allowable number of load repetitions to tensile strain and this relation can be determined in the laboratory fatigue test on asphaltic concrete specimens.
Rutting occurs only on flexible pavements as indicated by permanent deformation or rut depth along wheel load path.
Two design methods have been used to control rutting--
one to limit the vertical compressive strain on the top of subgrade
and
other to limit rutting to a tolerable amount [12 mm normally].
Thermal cracking includes both low-temperature cracking and thermal fatigue cracking.
RIGID PAVEMENT CONSULTANCY
Efficient. Reliable. Exceptional.
Rigid pavements--
Rigid pavements have sufficient flexural strength to transmit the wheel load stresses to a wider area below.
Compared to flexible pavement, rigid pavements are placed either directly on the prepared sub-grade or on a single layer of granular or stabilized material. Since there is only one layer of material between the concrete and the sub-grade, this layer can be called as base or sub-base course.
RIGID PAVEMENT CONSULTANCY
It’s All in the Details
Types of Rigid Pavements--
Rigid pavements can be classified into four types:
•Jointed plain concrete pavement (JPCP),
•Jointed reinforced concrete pavement (JRCP),
•Continuous reinforced concrete pavement (CRCP),
and
•Pre-stressed concrete pavement (PCP).
Jointed Plain Concrete Pavement--
are plain cement concrete pavements constructed with closely spaced contraction joints. Dowel bars or aggregate interlocks are normally used for load transfer across joints. They normally has a joint spacing of 5 to 10m.
Jointed Reinforced Concrete Pavement--
Although reinforcements do not improve the structural capacity significantly, they can drastically increase the joint spacing to 10 to 30m. Dowel bars are required for load transfer. Reinforcements help to keep the slab together even after cracks.
Continuous Reinforced Concrete Pavement-- Complete elimination of joints are achieved by reinforcement.
RIGID PAVEMENT CONSULTANCY
Customized to Your Preferences
Failure criteria of rigid pavements:
Traditionally fatigue cracking has been considered as the major, or only criterion for rigid pavement design.
The allowable number of load repetitions to cause fatigue cracking depends on the stress ratio between flexural tensile stress and concrete modulus of rupture.
Of late, pumping is identified as an important failure criterion.
Pumping is the ejection of soil slurry through the joints and cracks of cement concrete pavement, caused during the downward movement of slab under the heavy wheel loads.
Other major types of distress in rigid pavements include faulting, spalling, and deterioration.
RIGID PAVEMENT CONSULTANCY
Efficient. Reliable. Exceptional.
Summary:
Pavements form the basic supporting structure in highway transportation.
Each layer of pavement has a multitude of functions to perform which has to be duly considered during the design process.
Different types of pavements can be adopted depending upon the traffic requirements.
Improper design of pavements leads to early failure of pavements affecting the riding quality also.
Problems/Solutions:
A: The thin layer of bitumen coating between an existing bituminous layer and a new bituminous layer is:
●Seal coat
●Intermediate coat
●Tack coat
●Prime coat
B: Rigid pavements are designed by
●Rigid plate theory
●Elastic plate theory
●Infinite layer theory
●Interlocking of aggregates
CONSULTANCY
It’s All in the Details
When you’re looking for top quality work, 8mcc/rc is here to help. Our contracting professionals are available to provide a wide range of customizable options, all guaranteed to meet and exceed expectations. Contact our office today to learn more about this and our other available services.
CONTACT
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HSR Layout, Bengaluru, Karnataka, India
