INVESTIGATING EFFECTS OF APPLICATION OF SILICA FUME AND SBS AS MODIFIERS TO REDUCE MOISTURE SENSITIVITY OF ASPHALT CONCRETE MIXTURE

المؤلفون

  • Zaynab Ibrahim Qasim Building and Construction Engineering Department, University of Technology, Baghdad Iraq. مؤلف
  • Karim Hadi Ibrahim Al Helo Building and Construction Engineering Department, University of Technology, Baghdad Iraq. مؤلف
  • Sara Nadhim hameed Building and Construction Engineering Department, University of Technology, Baghdad Iraq. مؤلف

الكلمات المفتاحية:

Styrene Butadiene Styrene، SBS، Polymer Modified، Silica Fume، Moisture Sensitivity، Asphalt Concrete Mixture.

الملخص

Moisture damage is one of the most common reasons for the premature deterioration of Hot Mix Asphalt (HMA) pavements. Over the years, extensive research has been carried out by scientists and engineers on this subject; however, pavements still succumb to early failure from infiltrating moisture. A very popular method of minimizing the moisture susceptibility of asphalt pavements is the use of anti-stripping agents. These additives are chemical substances that alter the physicochemical properties of the asphalt by making it more hydrophobic. This study focuses on the effect of anti-stripping agents on the moisture susceptibility of asphalt concrete mixture. The anti-stripping agents used were(SBS, Silica fume,and SBS with Silica fume)with different percentages. The laboratory tests include indirect tensile strength test, Marshall and retained Marshall Stability test (RMS) and double punching shear strength test. The test results show that the asphalt mixtures modified by (Silica fume+ SBS) have the highest values in Marshall Stability, RMS and it increased the moisture and stripping resistance. However, using (3% Silica fume+3% SBS) has the best effect on Marshall Stability, TSR value and stripping resistance. While (4% Silica fume+3% SBS) has the best effect on RMS value. From the experimental results, it is observed that the addition of anti-stripping agents had a significant positive influence on the results of the test properties being evaluated in each test

التنزيلات

Key Dates

منشور

2019-11-01

إصدار

مجلد 23 عدد 6 (2019): Journal of Engineering and Sustainable Development

القسم

Articles

الرخصة

Creative Commons License

هذا العمل مرخص بموجب Creative Commons Attribution 4.0 International License.

The Journal of Engineering and Sustainable Development is an open-access journal that all contents are free of charge. Articles of this journal are licensed under the terms of the Creative Commons Attribution International Public License CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/legalcode) that licensees are unrestrictly allowed to search, download, share, distribute, print, or link to the full texts of the articles, crawl them for indexing and reproduce any medium of the articles provided that they give the author(s) proper credits (citation). The journal allows the author(s) to retain the copyright of their published article.
Creative Commons-Attribution (BY)

كيفية الاقتباس

INVESTIGATING EFFECTS OF APPLICATION OF SILICA FUME AND SBS AS MODIFIERS TO REDUCE MOISTURE SENSITIVITY OF ASPHALT CONCRETE MIXTURE. (2019). مجلة الهندسة والتنمية المستدامة, 23(6), 89-100. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/184

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