Category: PAVEMENT DESIGN

Types of Road Pavement – Flexible and Rigid Pavement

Types of Road Pavement – Flexible and Rigid Pavement

Types of Road Pavements Types of road pavement: The road pavements are mainly classified into two types: Flexible Pavement Rigid Pavement Another two types of road pavement are becoming popular at present times, they are: 3. Semi-rigid Pavement4. Interlocking Cement Concrete Block Pavement 1. Flexible pavements Flexible pavement, as the name suggests they are flexible … Continue reading Types of Road Pavement – Flexible and Rigid Pavement

4 Component Parts Of Flexible and Rigid Road Pavements Structure and Their Function

4 Component Parts Of Flexible and Rigid Road Pavements Structure and Their Function

Component Parts Of Flexible & Rigid Road Pavements Structure The following are the 4 component parts of road pavement: Subgrade or formation.Subbase course.Base course.Surface course or wearing course. 1) Subgrade or Formation The finished and compacted surface of earthwork on which a road pavement rests is called subgrade or formation.  Functions of Subgrade The Functions … Continue reading 4 Component Parts Of Flexible and Rigid Road Pavements Structure and Their Function

Necessity of Providing Joints in Cement Concrete Road

Necessity of Providing Joints in Cement Concrete Road

Necessity of Providing Joints in Cement Concrete Road Joints are provided in cement concrete road (pavement) to achieve the following objectives (Read more- what is joint in cement concrete road) 1. To allow for expansion of the slab due to the rise in slab temperature.  2. To permit the contraction of the slab due to … Continue reading Necessity of Providing Joints in Cement Concrete Road

Types Of Joints In Cement Concrete Road

Types Of Joints In Cement Concrete Road

Types Of Joints In Cement Concrete Road The joints provided in cement concrete road are classified into the following two categories: 1. Longitudinal Joints.2. Transverse Joints. 1. Longitudinal Joints These joints are provided longitudinally in cement concrete roads which have a width more than 4.5 m. Such joints are provided to prevent longitudinal cracking in … Continue reading Types Of Joints In Cement Concrete Road

Joints in Cement Concrete Roads

Joints in Cement Concrete Roads

Joints in Cement Concrete Roads Joints are provided in cement concrete road to allow expansion, contraction and warping of the slabs due to the variation in the temperature of slabs. Increase in temperature cause expansion of the slab horizontally. Similarly, decrease of temperature cause contraction of the slab horizontally.  The slab movements also take place, … Continue reading Joints in Cement Concrete Roads

Failure of Flexible Pavement

Failure of Flexible Pavement

Failure of Flexible Pavement Flexible pavement failure is defined by the formation of potholes, ruts, cracks, localized depressions and settlement. The failure of any one or more components of the pavement structure such as subgrade, base course, wearing course is liable for pavement failure. Following are some of the typical flexible pavement failures: 1. Alligator … Continue reading Failure of Flexible Pavement