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253774

IMPROVE THE WAXY ASHPALT CONCRETE MIXTURE PROPERTIES USING CRUMB RUBBER AS AN ADDITIVES

Article

Last updated: 22 Jan 2023

Subjects

-

Tags

Civil engineering

Abstract

For more than half a century, asphalt cement used in Egyptian road construction was produced by distillation of crude oils from the fields in the Red Sea area. At the early seventies, the production from the Suez refinery was halted, and asphalt cement was produced from newly discovered crude oil fields in the Egyptian western desert. However, many problems were accompanied by severe creep deformations towards pavement edges and near the median curbs, and Pavement service life dropped from 15 years to about 3 years. This research had studied the effect of adding Crumb Rubber from recycled tires as additive in the mixture by rations 1%, 2%, 3%, 4%, and 5% to bitumen in the asphalt mixture to improve the performance of the waxy asphalt and compare the result with 3 control samples. The optimum bitumen content was determined using the Marshall method. The bitumen range region was set according to each mixture's bitumen demand. The relationship between traffic volume and stability describing the effect of applying the additive by varied ratios will be tabulated, as well as the flow, stability, and penetration values. Using Crumb Rubber from recycled tires as additive used in this study improved the waxy asphalt mixture properties and it is recommended to be used under heavy traffic loads as the marshal stability results show ascending increase from 1029 kg to 1252 kg by increasing the percentage of Crumb Rubber as additive from 1% to 5%. Also, it is recommended in warm weather as the penetration test results show increasing values from 2.96 mm to 3.025 mm and decrease in rutting wheel tracking test value reached 2.2 mm depth at 10000 total Passes.
 
يهدف هذا البحث الى تحسين خواص الخلطة االسفلتية الشمعية و خصوصا فى االجواء الحارة , و لذلک تم استخدام )بدرة مطاط من اإلطارات المعاد تدويرها( مضافة بنسبة 1 ٪من الى 5 ٪إلى البيتومين في خليط األسفلت لتحسين أداء خليط األسفلت الشمعي و تم اخذ فى الدراسة متوسط نتائج 3 عينات من کل نسبة مختلفة مضافة لمحتوى االسفلت ومقارنة النتيجة مع متوسط نتائج 3 عينات بدون اضافات.حيث تم استخدام طريقة مارشال لتحديد محتوى البيتومين األمثل للخلطة اإلسفلتية التقليدية. تم إنتاج ثالث عينات متطابقة لکل بديل. تم عمل اختبارات للخلطة االسفلت ية لقياس التدفق والثبات واالختراق لبيان العالقة بين حجم المرور واالستقرار موض ًحا تأثير استخدام اإلضافات المختلفة بنسب مختلفة. حيث يوصى به في الطقس الدافئ باستخدام کسر بدرة المطاط من اإلطارات المعاد تدويرها کمادة مضافة حيث أظهرت نتائج ثبات الحرکة زيادة تصاعدي من 1029 کجم إلى 1252 کجم عن طريق زيادة نسبة مطاط الفتات کمادة مضافة من 1 ٪إلى 5 ٪تراوحت القيم من 96.2 مم إلى 025.3 مم وانخفاض قيمة اختبار تتابع العجلة الذي وصل إلى 2.2 مم. بـ 10000 تمريره إجمالية

DOI

10.21608/auej.2022.253774

Keywords

Waxy asphalt, Crumb rubber, recycled tires, asphalt additives أسفلت شمعي ، بدرة مطاط ، إطارات معاد تدويرها ، إضافات أسفلت

Authors

First Name

Sherif

Last Name

Mostafa

MiddleName

-

Affiliation

Construction and Building Department, October 6 University, Cairo, Egypt

Email

dr.sherif.eeaa@gmail.com

City

-

Orcid

-

First Name

Abdallah

Last Name

Wahdan

MiddleName

H

Affiliation

Public Works Department, Faculty of Engineering, Al-Azhar University, Cairo, Egypt

Email

-

City

-

Orcid

-

First Name

Hassan

Last Name

Mahdy

MiddleName

A.H.

Affiliation

Public Works Department, Faculty of Engineering, Ain Shams University, Cairo, Egypt

Email

drhassanmahdy@gmail.com

City

-

Orcid

-

Volume

17

Article Issue

64

Related Issue

36088

Issue Date

2022-07-01

Receive Date

2021-12-09

Publish Date

2022-07-09

Page Start

842

Page End

857

Print ISSN

1687-8418

Link

https://jaes.journals.ekb.eg/article_253774.html

Detail API

https://jaes.journals.ekb.eg/service?article_code=253774

Order

1

Type

Original Article

Type Code

706

Publication Type

Journal

Publication Title

Journal of Al-Azhar University Engineering Sector

Publication Link

https://jaes.journals.ekb.eg/

MainTitle

-

Details

Type

Article

Created At

22 Jan 2023