Why are Concrete roads preferred over Asphalt Road?
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The concrete road used for only low volume roads that mean rural road improvements .because of concrete road construction have the cost-effectiveness in construction techniques and less cost maintenance of roads.
Therefore the concrete road has been a cost-effective solution for road construction. And Extensive studies by the National Research Council of Canada confirm previous findings of the fuel efficiency of vehicles on concrete roads showing that fully loaded tractor-trailers consume less fuel traveling on concrete pavements than on asphalt pavements over a wide temperature range.
Data from the American Concrete Pavement Association confirms that American states are truly committed to building concrete highways and create competition between the concrete and asphalt paving industries resulting in lower unit costs for both concrete and asphalt highways. This results in more roads being paved for the same cost
Specifically when the soil subgrade is not stable or soil is loose at road site, flexible pavement is not preferred so
The concrete roads are preferred over asphalt road because Concrete roads are long-lasting around the 20-40 year lifespan.
It is also recycled after crushing into gravels, so It cost nothing or very little cost.
It creates less environmental pollution than an asphalt road.
High load and pressure resistance.