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Feasibility of Using Recycled Asphalt Pavement Aggregates in Concrete Pavement

Article

Last updated: 25 Dec 2024

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Abstract

The feasibility of using concrete containing recycled asphalt pavement (RAP) in concrete pavement applications was evaluated. Recycled asphalt pavement (RAP) is the removed pavement material containing asphalt and aggregate. However, limited researches have been done to examine the potential of incorporating RAP into concrete. Since RAP contains asphalt, it is very likely that the toughness of concrete made with RAP could be improved. An alternative use of RAP is to use it as an aggregate in Portland cement concrete (PCC). Concrete containing 0%, 15% and 30% of RAP replacement by weight of natural coarse aggregates with different cement content with (250, 300 and 350 kg/m3) were produced in the laboratory and evaluated for their properties that are relevant to performance of concrete pavements. Mechanical properties of the concrete mainly compressive strength, modulus of elasticity and Poisson's ratio after 28 days were recorded. The test results indicated that, the modulus of elasticity was found to decrease as the RAP content of the concrete increased, due to a decrease in the compressive strength of the concrete. However, these results as RAP were incorporated in the concrete, the resulting of compressive strength to modulus of elasticity and Poisson's ratio for the concrete was reduced as compared with mixes that of a reference concrete without RAP. This indicates that, using a concrete containing RAP could possibly result in improvement in the performance of concrete pavements. Moreover, RAP could be used into Portland cement concrete without any modification to the conventional equipment or procedures.

DOI

10.21608/erjm.2020.112800

Keywords

Portland cement concrete, Recycled asphalt pavement (RAP), Mechanical Properties, Modulus of elasticity, Stress-strain relationships

Authors

First Name

mohamed

Last Name

abouelenain

MiddleName

taha

Affiliation

kafr elseikh university

Email

eng_tahael3513@yahoo.com

City

kafr elsheikh

Orcid

-

First Name

Metwally

Last Name

Abd Elaty

MiddleName

Abd Allah

Affiliation

Faculty of Engineering, Tanta University, Tanta, Egypt

Email

drmet2828@yahoo.com

City

tanta

Orcid

-

First Name

Mariam

Last Name

Ghazy

MiddleName

Farouk

Affiliation

Prof. of Properties and Strength of Materials, Dept. of Civil Engineering, Faculty of Engineering, Tanta University

Email

dr.mariamghazi@yahoo.com

City

tanta

Orcid

-

Volume

43

Article Issue

4

Related Issue

17286

Issue Date

2020-10-01

Receive Date

2020-07-17

Publish Date

2020-10-01

Page Start

337

Page End

343

Print ISSN

1110-1180

Online ISSN

3009-6944

Link

https://erjm.journals.ekb.eg/article_112800.html

Detail API

https://erjm.journals.ekb.eg/service?article_code=112800

Order

8

Type

Original Article

Type Code

1,118

Publication Type

Journal

Publication Title

ERJ. Engineering Research Journal

Publication Link

https://erjm.journals.ekb.eg/

MainTitle

Feasibility of Using Recycled Asphalt Pavement Aggregates in Concrete Pavement

Details

Type

Article

Created At

22 Jan 2023