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169620

Flexible Pavement Maintenance Based on Calibrated Performance Curve.

Article

Last updated: 22 Jan 2023

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Public Works Engineering

Abstract

In this paper, a performance curve is used to optimize flexible pavement maintenance. The main aim of this study is to develop a performance model based on Benkelman Beam (BB) results by using prediction models derived from the data for Pavement Condition Index (PCI) that was obtained from three districts belonging to the General Authority for Roads, Bridges and Land Transport (GARBLT) which consist of about Central district (26sections), Middle-Delta (22 sections), and East-Delta (14 sections) with a total length of 124 Kilometers. The proposed model was validated by comparing the predicted values with actual (PCI) with a coefficient of determination R^2 () equals 0.87. Structural evaluation of in-service pavements is a key activity for both the project and network-level pavement management systems. Benkelman Beam was used for measuring the deflection. Test points were taken at a distance of 1.5 m from the edge of the pavement. Since the deflections measured by the Benkelman Beam are influenced by the pavement temperature and seasonal variations in climate, therefore, pavement was recorded temperature for making subsequent corrections to the deflection values. Since the Structure Number (SN) evaluation of in-service pavements is a key component for both the Structural Condition Index (SCI), the resulting deflections from (BB) were converted to structural number (SN) using a model and the validity has been checked by taking samples from the pavement layers, which revealed a strong correlation between them with a coefficient of determination (R^2) of 0.62. The structure number in 2018 is predicted from the proposed model and then compared with actual field measurements for the same year. A conclusion is made regarding the validity of the proposed prediction model with a coefficient of determination (R^2) equals 0.91. Since (BB) reading is important to determine Pavement Condition Index (PCI) value.

DOI

10.21608/bfemu.2021.169620

Keywords

Benkelman Beam(BBD), Performance Curve, prediction model, pavement condition index(PCI), Paver, Structure Number (SN)

Authors

First Name

Essam

Last Name

Ahmed

MiddleName

-

Affiliation

M.sc Student, Civil Engineering, Public Works Department, Faculty of Engineering, Ain Shams University, Egypt.

Email

essambaheeg.pg2017@gmail.com

City

Mansoura

Orcid

-

First Name

Hassan

Last Name

Mahdy

MiddleName

Abd-elzaher

Affiliation

Professor of Highway and Airport Engineering, Public Works Department, Faculty of Engineering, Ain Shams University, Egypt.

Email

drhassanmahdy@gmail.com

City

-

Orcid

-

First Name

Hamdy

Last Name

Mohamed

MiddleName

Elsayed

Affiliation

Professor of Highway and Airport Engineering, Public Works Department, Faculty of Engineering, Ain Shams University, Egypt.

Email

hamdyibrahim100@yahoo.com

City

Cairo

Orcid

-

Volume

46

Article Issue

2

Related Issue

23998

Issue Date

2021-06-01

Receive Date

2021-03-08

Publish Date

2021-05-09

Page Start

13

Page End

22

Print ISSN

1110-0923

Online ISSN

2735-4202

Article File

BFEMU_Volume 46_Issue 2_Pages 13-22.pdf

PDF . 1.6MB

Link

https://bfemu.journals.ekb.eg/article_169620.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=169620

Order

13

Type

Research Studies

Type Code

1,205

Publication Type

Journal

Publication Title

MEJ. Mansoura Engineering Journal

Publication Link

https://bfemu.journals.ekb.eg/

MainTitle

-

Details

Type

Article

Created At

22 Jan 2023