IIT-Kharagpur ink pact for paneled concrete pavements

By: |
New Delhi | August 9, 2016 6:55 PM

National Highways Authority of India (NHAI) and IIT-Kharagpur have entered into an agreement for research on laboratory and field investigations on paneled cement concrete pavements for highways.

National Highways Authority of India (NHAI) and IIT-Kharagpur have entered into an agreement for research on laboratory and field investigations on paneled cement concrete pavements for highways. (Reuters)National Highways Authority of India (NHAI) and IIT-Kharagpur have entered into an agreement for research on laboratory and field investigations on paneled cement concrete pavements for highways. (Reuters)

National Highways Authority of India (NHAI) and IIT-Kharagpur have entered into an agreement for research on laboratory and field investigations on paneled cement concrete pavements for highways.

“NHAI in collaboration with IIT Kharagpur shall promote to develop a technology to construct paneled cement concrete (pre-fabricated in a small panel size) which can replace the design of construction of existing cement concrete road,” NHAI said in a statement.

The duration of the research project is 3 years and NHAI has paid an amount of Rs 1.25 crore for the it, excluding cost of construction of trial pavement section on NH, the statement added.

The highways in the country are generally paved with bituminous (asphaltic concrete) material produced from refineries.

However, NHAI said it has been experienced that these highways are prone to damage and need periodic maintenance frequently due to adverse climatic conditions such as rain and hot weather prevailing in the country.

“Therefore, to overcome this problem, the Government of India has recently announced a policy for the construction of concrete pavements for all major highways due to their longevity and maintenance free life,” it said.

As per the current practices, the construction of these highways requires a monolithic (in-situ) layer of cement concrete normally 300 mm thick laid continuously over the prepared surface.

Therefore, an innovation is required to optimise the design of concrete pavement in its traditional form which can facilitate the faster construction at much cheaper cost, thus, consuming less natural resources and promote the philosophy of Green Highways in the country.

Any saving in design and construction with the help of new technology will not only entail huge investment but also save consumption of substantial quantity of natural resources used for production of cement and stone aggregates.

“The paneled concrete pavement laid on a lean concrete base can fulfill government’s dream of providing a long lasting maintenance free pavement at a cost at par with those of asphalt pavements,” it said.

Such pavements laid at a few places in India have given a good service when used as an overlay over a bituminous layer commonly terms as white topping (WT) but an extensive study is required to formulate the design practices for its use in wider perspective, it added.

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