Member-only story

An Introduction to Surface Rehabilitation of Asphalt Concrete Pavement Street: A Comprehensive Guide

Kenzaburō Ōe

·3.3k Followers· Follow

Published in An Introduction To Surface Rehabilitation Of Asphalt Concrete Pavement (Street And Highway Engineering)

6 min read · 4 weeks before

681 View Claps

71 Respond

Save

Listen

An Introduction to Surface Rehabilitation of Asphalt Concrete Pavement (Street and Highway Engineering)

by J. Paul Guyer

5 out of 5

Language	:	English
File size	:	844 KB
Text-to-Speech	:	Enabled
Screen Reader	:	Supported
Enhanced typesetting	:	Enabled
Print length	:	36 pages
Lending	:	Enabled

Chapter 1:

Asphalt concrete pavement is a common type of pavement used in streets, highways, and parking lots. It is made up of a mixture of asphalt, aggregate, and sand. Over time, asphalt concrete pavement can become damaged due to wear and tear, weather conditions, and heavy traffic. Surface rehabilitation is a process that can be used to restore the surface of asphalt concrete pavement and extend its lifespan. This chapter provides an overview of surface rehabilitation, including the different types of rehabilitation techniques and the factors that should be considered when selecting a technique.

Chapter 2: Assessment of Asphalt Concrete Pavement

Before any surface rehabilitation work can be done, the condition of the asphalt concrete pavement must be assessed. This assessment can be done by visually inspecting the pavement for signs of damage, such as cracks, potholes, and rutting. The assessment can also include testing the pavement to determine its strength and durability. The results of the assessment will help to determine the type of surface rehabilitation technique that is needed.

Chapter 3: Surface Rehabilitation Techniques

There are a variety of different surface rehabilitation techniques that can be used to restore asphalt concrete pavement. Some of the most common techniques include:

Asphalt overlay: This technique involves placing a new layer of asphalt over the existing pavement. Asphalt overlays can be used to correct minor surface defects, such as cracks and potholes, and to restore the skid resistance of the pavement.
Asphalt resurfacing: This technique involves milling the existing pavement and then placing a new layer of asphalt. Asphalt resurfacing can be used to correct more severe surface defects, such as rutting and cracking, and to restore the structural integrity of the pavement.
Asphalt patching: This technique involves removing the damaged area of pavement and replacing it with a new piece of asphalt. Asphalt patching can be used to repair small areas of damage, such as potholes and cracks.
Asphalt rejuvenation: This technique involves applying a rejuvenating agent to the surface of the pavement. Asphalt rejuvenation can help to restore the flexibility and durability of the pavement and extend its lifespan.

Chapter 4: Selection of Surface Rehabilitation Technique

The type of surface rehabilitation technique that is selected will depend on a number of factors, including the severity of the damage, the condition of the existing pavement, and the budget. The following factors should be considered when selecting a surface rehabilitation technique:

Severity of the damage: The severity of the damage will determine the type of surface rehabilitation technique that is needed. Minor surface defects, such as cracks and potholes, can be repaired with asphalt patching or asphalt overlay. More severe damage, such as rutting and cracking, will require asphalt resurfacing.
Condition of the existing pavement: The condition of the existing pavement will also affect the type of surface rehabilitation technique that is selected. If the existing pavement is in good condition, an asphalt overlay may be sufficient. If the existing pavement is in poor condition, asphalt resurfacing may be necessary.
Budget: The budget will also play a role in the selection of a surface rehabilitation technique. Asphalt patching is the least expensive technique, followed by asphalt overlay and asphalt resurfacing. Asphalt rejuvenation is the most expensive technique.

Chapter 5: Construction of Surface Rehabilitation

The construction of surface rehabilitation should be done by a qualified contractor. The contractor should have experience in the type of surface rehabilitation technique that is being used. The construction of surface rehabilitation typically involves the following steps:

Preparation: The first step is to prepare the surface of the pavement for rehabilitation. This may involve cleaning the surface, removing any debris, and patching any holes or cracks.
Application of surface rehabilitation material: The next step is to apply the surface rehabilitation material. This may involve placing a new layer of asphalt, milling the existing pavement and placing a new layer of asphalt, or applying a rejuvenating agent.
Compaction: The final step is to compact the surface rehabilitation material. This will help to ensure that the material is properly bonded to the pavement and that it will last for many years.

Chapter 6: Maintenance of Surface Rehabilitation

Once surface rehabilitation has been completed, it is important to maintain the pavement to extend its lifespan. Maintenance may involve定期检查路面是否有损坏迹象, 以及定期封路以防止水渗入路面。定期维护将有助于确保沥青混凝土路面经久耐用。

Surface rehabilitation is a process that can be used to restore the surface of asphalt concrete pavement and extend its lifespan. There are a variety of different surface rehabilitation techniques that can be used, and the type of technique that is selected will depend on a number of factors, including the severity of the damage, the condition of the existing pavement, and the budget. Surface rehabilitation should be done by a qualified contractor, and it is important to maintain the pavement once rehabilitation has been completed.

An Introduction to Surface Rehabilitation of Asphalt Concrete Pavement (Street and Highway Engineering)

by J. Paul Guyer

5 out of 5