The highways have been connecting the entire country with its every advancement in pavement techniques. The quality highways are not only durable with less maintenance. There are two main asphalt mix procedures – Marshall and Hveem. To achieve proper pavement surface it requires the right mixture of bitumen and mineral aggregates based on traffic volume. An engineer taking a PE Exam brushes up the basic information about asphalt pavements in transportation engineering. While constructing the highway/road, following steps should be considered for effective pavement construction.
Limiting permeability: While constructing asphalt pavement, it is important to ensure that the paved surface is compacted as per the required density as per specification.
Capacity to carry traffic loads: The designed mix for the road should be able to handle more traffic and traffic loads during peak hours. A PE Review Course refreshes topics related to traffic volumes and pavement design topics in PE Civil Transportation Engineering class.
Resistance to permanent deformation: With time, weather and environmental condition the mix should be able to withstand any form of disintegration. The design mix should be capable of withstanding against environmental factors. A PE Exam Review brushes upon various asphalt design mix procedures and their usage.
Sufficient layer thickness: It is important that there is an adequate layer thickness of each course of material while constructing the roadways. When the layer thickness is not appropriate then the pavement is likely to break, crack and ravel. To prevent such type of failures, it is important to ensure that the right layer thickness is to be maintained.
In Conclusion: While constructing a highway it is very important to ensure that the above steps are taken into consideration. The design mix created for the highway should prevent the failures caused by various factors. A Professional Engineer Exam Review Course helps the aspirants to refresh their basics of transportation engineering for passing the PE Civil Exam.
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