Beta
356914

Evaluating the Strength of Full Depth Reclamation (FDR) Mixtures Using RAP and Virgin Aggregate

Article

Last updated: 29 Dec 2024

Subjects

-

Tags

-

Abstract

One of the fastest techniques used to rehabilitate damaged pavement is full depth reclamation (FDR). FDR technique depends on reusing the asphalt pavement using additives to form a durable base. These additives are mechanical, chemical, or bituminous. The most common type of additive used in FDR mixes is Portland cement. At the same time, Cement production represents a serious threat to the environment because of its dust. Therefore, this paper investigates the ability to use virgin aggregate as a mechanical additive because in some projects using the existing base is restricted due to the underground utilities and the second aim is to reduce the required percentages of the used cement. The tests were carried out on two mixes, the first mix is traditional FDR which includes recycled asphalt pavement (RAP) and old aggregate. The second mix is traditional FDR and contains virgin aggregate (VA). The two mixes were treated with different percentages of cement (0,2,4, and 6%) by the dry weight of the mix. The conducted tests were compaction (Modified Proctor test) and unconfined compressive strength (UCS) test. The UCS test mixes were cured for 7 days. The results showed that the maximum dry density (MDD) and Optimum moisture Content (OMC) increased by an increasing in cement content for the two mixes. The UCS test result showed that by the increase in cement percentages, the UCS values increased for the two mixes and the optimum cement content (OCC) for mix2 was lower than mix1 at the same value of UCS.

DOI

10.21608/erjsh.2024.263655.1275

Keywords

Full Depth Reclamation (FDR), Virgin Aggregate, Reclaimed Asphalt Pavement (RAP), Unconfined Compressive Strength (UCS) test, Compaction test

Authors

First Name

Ibrahim

Last Name

Ramadan

MiddleName

-

Affiliation

Department of Civil Engineering, Faculty of Engineering at Shoubra, Benha University, Cairo, Egypt

Email

ibrahim.ramadan@feng.bu.edu.eg

City

-

Orcid

-

First Name

Khaled

Last Name

Salem

MiddleName

-

Affiliation

Department of Civil Engineering, Faculty of Engineering at Shoubra, Benha University, Cairo, Egypt

Email

khaled.salem@feng.bu.edu.eg

City

-

Orcid

-

First Name

Ahmed

Last Name

Shokry

MiddleName

Magdy

Affiliation

Department of Civil Engineering, Faculty of Engineering at Shoubra, Benha University, Cairo, Egypt.

Email

ahmed160027@bue.edu.eg

City

-

Orcid

-

First Name

Mokhtar

Last Name

F. Ibrahim

MiddleName

-

Affiliation

Civil Engineering Department, Faculty of Engineering, Suez University, Suez, Egypt

Email

mokhtar.elgendy@eng.suezuni.edu.eg

City

-

Orcid

-

Volume

53

Article Issue

3

Related Issue

47982

Issue Date

2024-07-01

Receive Date

2024-01-19

Publish Date

2024-07-01

Page Start

1

Page End

6

Print ISSN

3009-6049

Online ISSN

3009-6022

Link

https://erjsh.journals.ekb.eg/article_356914.html

Detail API

https://erjsh.journals.ekb.eg/service?article_code=356914

Order

356,914

Type

Research articles

Type Code

2,276

Publication Type

Journal

Publication Title

Engineering Research Journal (Shoubra)

Publication Link

https://erjsh.journals.ekb.eg/

MainTitle

Evaluating the Strength of Full Depth Reclamation (FDR) Mixtures Using RAP and Virgin Aggregate

Details

Type

Article

Created At

29 Dec 2024