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Types Of Failures In Flexible Pavements

The different types of failures in flexible pavements are described below: 1. Subgrade failure. 2. Base failure or base course failure. 3. Surface failure or wearing course failure. 1. Subgrade Failure: Excessive deformation in subgrade soil of a flexible failure is called subgrade ...

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Cement Concrete Roads – Advantages And Disadvantages

[caption id="attachment_3338" align="aligncenter" width="500"] Cement Concrete Road[/caption] Cement Concrete Roads: The roads having their wearing surface consisting of cement concrete (plane or reinforced) are known as cement concrete roads or concrete roads. These roads are ...

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Types Of Curves On Hill Roads

Types Of Curves On Hill Roads: The types of curves provided on hill roads are as following: 1 Hair-pin curves, 2 salient curves, 3 Re-entrant curves. 1. Hair-pin Curves: 'The curve in a hill road which changes its direction through an angle of 180 ...

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Components Of Road Pavement Structure

Components Of Road Pavement Structure: Following are the different components of road structure: 1. Subgrade 2. Sub-base 3. Base course 4. Surface course or wearing course All these components belong to a typical flexible pavement, whereas rigid pavement usually consists of subgrade, subbase and ...

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What Is Bitumen And Its Uses

What Is Bitumen And Its Uses: Bitumen is the binding material present in asphalt. Sometimes it is also known as mineral tar. Bitumen is produced by partial distillation of crude petroleum. it is ...

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