1. 1
Al-Zaytoonah University of Jordan
Faculty of Engineering and Technology
Civil and Infrastructure Engineering Department
"Highway Maintenance"
"Term Project"
Second Semester 2018-2019
Instructor: Dr. Akram S. Suleiman
Ibrahem Ashraf Ahmad
201510353
Maryam Hamdallah
201420657
2. 2
Abstract:
The pavement condition index (PCI) is a simple, convenient and inexpensive way to monitor
the condition of the surface of roads, identify maintenance and rehabilitation needs as well as
ensure that road maintenance budgets are spent wisely. In this research, the pavement
condition was evaluated in terms of the surface distresses existing at the time of the field
evaluation. The PCI procedure was used in this research because it deals with the subject of
pavement distress identification most comprehensively and is based on a sound statistical
technique of pavement sampling.
Based on our work we found that the main causes of these distresses is the climate change as
we are going to describe it in details in this report.
3. 3
Ch1. Background
1.1 Introduction:
The overall purpose of highway maintenance is to fix defects and preserve the pavement's
structure and serviceability. Defects must be defined, understood, and recorded in order to
create an appropriate maintenance plan. Maintenance planning is solving an optimization
problem and it can be predictive. In predictive maintenance planning empirical, data-driven
methods give more accurate results than mechanical models.
Pavement Condition Index (PCI) is a numeric index ranging from (0) as a failed pavement to
(100) to a perfect pavement condition rating.
The PCI is calculated based on the results of a visual condition survey in which distress type,
Severity and quantity are identified.
1.2 Description of study area
This road is used for transporting goods and people, with a large percentage of heavy vehicles
moving on it. This road is located at Al-Zaytoonah University, which is 2 km (1.24 miles)
long. It is a two-lane road, with one lane in each direction, and it is an asphalt pavement road,
constructed 10 years ago.
Fig1.1 Location of Site
4. 4
Fig1.2 Location of site from Google Earth
Fig1.3 Site plan for AL-Zaytoonah University (Project Location).
5. 5
1.3 Objectives:
The purpose of this project is to learn how to:
1. Divide the pavement in to sections and divide the section into sample units.
2. Inspect sample units and determine distress types, severity levels and quantity.
3. Compute Pavement Condition Index (PCI) for each sample unit.
4. Compute Pavement Condition Index (PCI) for each Section.
5. Determine Pavement Condition Index (PCI) rating of the section.
6. Determine the main causes of the existing pavement distresses.
7. Comparing between this year PCI with three past years and indicate the difference.
8. Determine the repair methods.
1.5 Pavement distress types:
There are 19 Pavement distress types for asphalt pavements include:
1. Alligator Cracking
2. Bleeding
3. Block Cracking
4. Bumps and Sags
5. Corrugation
6. Depression
7. Edge Cracking
8. Joint Reflection Cracking
9. Lane/Shoulder Drop Off
10. Longitudinal & Transverse Cracking
11. Patching & Utility Cut Patching
12. Polished Aggregate
13. Potholes
14. Railroad Crossing
15. Rutting
16. Shoving
17. Slippage Cracking
6. 6
18. Swell
19. Weathering and Raveling
The existing distresses in our site found in the road samples during the inspection process are
listed below:
1. Alligator Cracking
Fig1.4 Alligator Cracking with (M) severity.
2. Bleeding
Fig1.5 Bleeding & with (L) Severity
7. 7
3. Block Cracking
Fig1.6 Block Cracking with (M) severity
4. Pumps and Sags:
Fig1.7 Pump and Sag (M) severity
24. 24
Ch.3 Quantities
3.1 Quantities & Options for Repair
Description Severity Quantity Units M&R
Family
1
L & T CR M 25 M Seal crack
L & T CR L 102 M Seal crack
L & T CR H 33 M Partial depth patch
PATCH/UT CUT M 25 SqM Replace patch
PATCH/UT CUT L 31 SqM Do nothing
WEATH/RAVEL L 7 SqM Do nothing
WEATH/RAVEL H 3 SqM Surface treatment
Family
2
WEATH/RAVEL L 59 SqM Surface seal
POTHOLE L 1 Count Partial depth patch
BLEEDING L 1 SqM Do nothing
L & T CR L 173 M Seal crack
ALLIGATOR CR M 1 SqM Partial depth patch
BLOCK CR M 36 SqM Seal crack
PATCH/UT CUT L 59 SqM Do nothing
DEPRESSION L 25 SqM Do nothing
Family
3
ALLIGATOR CR L 10 SqM Surface seal
ALLIGATOR CR M 3 SqM Partial depyh patch
ALLIGATOR CR H 5 SqM Full depth patch
L & T CR L 895 M Seal crack
L & T CR M 86 M Seal crack
L & T CR H 46 M Partial depyh patch
BLOCK CR L 596 SqM Surface seal
PATCH/UT CUT L 19 SqM Do nothing
PATCH/UT CUT M 5 SqM Replace patch
RUTTING M 6 SqM Shallow depth patch
WEATH/RAVEL L 4 SqM Do nothing
WEATH/RAVEL H 5 SqM Surface treatment
BLEEDING L 8 SqM Do nothing
BUMPS/SAGS L 3 M Do nothing
Family ALLIGATOR CR L 4 SqM Surface seal
25. 25
4 BLEEDING L 4 SqM Do nothing
BUMPS/SAGS L 2 M Do nothing
DEPRESSION L 42 SqM Do nothing
L & T CR M 10 M Seal crack
L & T CR L 161 M Seal crack
PATCH/UT CUT L 253 SqM Do nothing
WEATH/RAVEL L 16 SqM Surface seal
BLOCK CR M 26 SqM Seal crack
PATCH/UT CUT M 57 SqM Replace patch
Family
5
BLOCK CR L 155 SqM Seal crack
POLISHED AG N 1 SqM Do nothing
3.2 Conclusion and Recommendations:
The main cause of the asphalt distresses in our site is the climate change.
Most of our repair recommendation is a seal cracking.
We should do maintenance before the section reach to the critical point.
Uses of Paver will help us to know the time of maintenance needed.
We should change the asphalt grades to get more resistance for the climate change.