Water Sensitivity Of Warm Porous Asphalt Incorporating Sasobit®
The asphalt industry is making constant efforts to minimize energy consumption and reduce emissions by lowering asphalt production temperature. This can be achieved by incorporating warm asphalt additive named Sasobit®. In this study, rheological properties of a conventional bitumen 60/70 penetratio...
Saved in:
Main Author: | |
---|---|
Format: | Thesis |
Language: | English |
Published: |
2013
|
Subjects: | |
Online Access: | http://eprints.usm.my/43820/1/Mohamad%20Yusri%20Bin%20Aman24.pdf |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
id |
my-usm-ep.43820 |
---|---|
record_format |
uketd_dc |
spelling |
my-usm-ep.438202019-04-12T05:26:10Z Water Sensitivity Of Warm Porous Asphalt Incorporating Sasobit® 2013-08 Aman, Mohamad Yusri TA1-2040 Engineering (General). Civil engineering (General) The asphalt industry is making constant efforts to minimize energy consumption and reduce emissions by lowering asphalt production temperature. This can be achieved by incorporating warm asphalt additive named Sasobit®. In this study, rheological properties of a conventional bitumen 60/70 penetration grade with and without Sasobit® at different aging conditions have been investigated. The addition of Sasobit® content increased penetration index and complex modulus (G*), despite reduction in phase angle (δ). By adding 3% Sasobit®, the mixing temperature is decreased from 160°C to 150°C. Meanwhile, adding 1%, 2% and 3% of it increased the PG 70 base binder to PG 73, PG 74 and PG 76, respectively. There was no significant change observed in the mixing temperature from 3% to 4% of Sasobit® addition. However, the reduction of mixing temperatures may prevent moisture from being completely evaporated from the aggregate and so affect the bitumen bond, making the mixture more susceptible to stripping. Two anti-stripping additives, namely hydrated lime and Pavement Modifier (PMD) were used to reduce the destructive effects of moisture. The Dynamic Asphalt Stripping Machine (DASM) that simulate rainfall event was used to enhance stripping. Upon subjected to dynamic stripping, specimens were tested for indirect tensile strength and Cantabro test showed lower strength and less resistance to disintegration due to stripped mastic as compared to immersing condition. 2013-08 Thesis http://eprints.usm.my/43820/ http://eprints.usm.my/43820/1/Mohamad%20Yusri%20Bin%20Aman24.pdf application/pdf en public phd doctoral Universiti Sains Malaysia Pusat Pengajian Kejuruteraan Awam |
institution |
Universiti Sains Malaysia |
collection |
USM Institutional Repository |
language |
English |
topic |
TA1-2040 Engineering (General) Civil engineering (General) |
spellingShingle |
TA1-2040 Engineering (General) Civil engineering (General) Aman, Mohamad Yusri Water Sensitivity Of Warm Porous Asphalt Incorporating Sasobit® |
description |
The asphalt industry is making constant efforts to minimize energy consumption and reduce emissions by lowering asphalt production temperature. This can be achieved by incorporating warm asphalt additive named Sasobit®. In this study, rheological properties of a conventional bitumen 60/70 penetration grade with and without Sasobit® at different aging conditions have been investigated. The addition of Sasobit® content increased penetration index and complex modulus (G*), despite reduction in phase angle (δ). By adding 3% Sasobit®, the mixing temperature is decreased from 160°C to 150°C. Meanwhile, adding 1%, 2% and 3% of it increased the PG 70 base binder to PG 73, PG 74 and PG 76, respectively. There was no significant change observed in the mixing temperature from 3% to 4% of Sasobit® addition. However, the reduction of mixing temperatures may prevent moisture from being completely evaporated from the aggregate and so affect the bitumen bond, making the mixture more susceptible to stripping. Two anti-stripping additives, namely hydrated lime and Pavement Modifier (PMD) were used to reduce the destructive effects of moisture. The Dynamic Asphalt Stripping Machine (DASM) that simulate rainfall event was used to enhance stripping. Upon subjected to dynamic stripping, specimens were tested for indirect tensile strength and Cantabro test showed lower strength and less resistance to disintegration due to stripped mastic as compared to immersing condition. |
format |
Thesis |
qualification_name |
Doctor of Philosophy (PhD.) |
qualification_level |
Doctorate |
author |
Aman, Mohamad Yusri |
author_facet |
Aman, Mohamad Yusri |
author_sort |
Aman, Mohamad Yusri |
title |
Water Sensitivity Of Warm Porous Asphalt Incorporating Sasobit® |
title_short |
Water Sensitivity Of Warm Porous Asphalt Incorporating Sasobit® |
title_full |
Water Sensitivity Of Warm Porous Asphalt Incorporating Sasobit® |
title_fullStr |
Water Sensitivity Of Warm Porous Asphalt Incorporating Sasobit® |
title_full_unstemmed |
Water Sensitivity Of Warm Porous Asphalt Incorporating Sasobit® |
title_sort |
water sensitivity of warm porous asphalt incorporating sasobit® |
granting_institution |
Universiti Sains Malaysia |
granting_department |
Pusat Pengajian Kejuruteraan Awam |
publishDate |
2013 |
url |
http://eprints.usm.my/43820/1/Mohamad%20Yusri%20Bin%20Aman24.pdf |
_version_ |
1747821284932190208 |