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97418

Effect of Rice Husk Ash on the Performance of Hot Asphalt Mixes.

Article

Last updated: 22 Jan 2023

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Tags

Public Works Engineering

Abstract

In this paper, using rice husk ash (RHA) in hot mix asphalt (HMA) as filler was evaluated. The main aim of replacing mineral filler is enhancing the performance of asphalt mixes and producing an economical asphalt mix. For this purpose, five different mixes were prepared; the first was a control mix (traditional mix) containing 100% Lime Stone Dust (LSD) as filler and 0% RHA. While, the other mixes contain 25%, 50%, 75% and 100% of RHA as a percentage of the filler weight. Optimum bitumen content (OBC) was determined using Marshall test, also all Marshall parameters (Stability, Air Voids, Voids in Mineral Aggregate, Unit Weight and Flow) were examined. Indirect Tensile Strength Test (ITST) and Wheel Tracking Test (WTT) were conducted and their results were analyzed. Dynamic modulus (│E*│) is considered an important parameter used in mechanistic-empirical pavement design. The │E*|is measured at different temperature/frequency combinations. Dynamic modulus (│E*│) and phase angle (δ) are used for the visco- elastic characterization of HMA. Thus, these properties were measured for mixes with and without RHA. The results indicate that RHA has the potential to be used as partial substitution of mineral filler LSD in pavement construction. Adding RHA enhances Marshall stiffness, reduces rut depth and increases indirect tensile strength values. Further, a significant change has been occurred in OBC for all mixes and the optimum replacement ratio is recorded as 50% RHA: 50% LSD. Finally, mixes containing RHA show higher dynamic modulus values and flow number.

DOI

10.21608/bfemu.2020.97418

Keywords

Rice husk ash, Hot Asphalt Mixes, Dynamic Modulus (E*), Marshall Test, Rut Depth, Indirect Tensile Strength

Authors

First Name

Mohamed

Last Name

Helal

MiddleName

Mohiey Eldien

Affiliation

M.sc Student, Civil Engineering, High Institute of Engineering- El Shorouk Academy, Egypt

Email

mohamedmohiey50@gmail.com

City

-

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

Mokhtar

Last Name

Ibrahim

MiddleName

Fahmy

Affiliation

Lecturer of Highway and Traffic Engineering, Civil Engineering, High Institute of Engineering - El Shorouk Academy, Egypt.

Email

mokhtargendy91@gmail.com

City

-

Orcid

-

Volume

45

Article Issue

2

Related Issue

14075

Issue Date

2020-06-01

Receive Date

2020-05-04

Publish Date

2020-06-21

Page Start

8

Page End

19

Print ISSN

1110-0923

Online ISSN

2735-4202

Article File

BFEMU_Volume 45_Issue 2_Pages 8-19.pdf

PDF . 559.4kB

Link

https://bfemu.journals.ekb.eg/article_97418.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=97418

Order

2

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

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Article

Created At

22 Jan 2023