Effect of Crumb Rubber and Warm Mix Additives on Asphalt Aging, Rheological, and Failure Properties
Thesis (Master, Chemistry) -- Queen's University, 2014-01-30 11:56:43.978 Asphalt-rubber mixtures have been shown to have useful properties with respect to distresses observed in asphalt concrete pavements. The most notable change in properties is a large increase in viscosity and improved low-...
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ftqueensuniv:oai:qspace.library.queensu.ca:1974/8602 2023-05-15T13:09:10+02:00 Effect of Crumb Rubber and Warm Mix Additives on Asphalt Aging, Rheological, and Failure Properties Agrawal, Prashant Hesp, Simon Chemistry 2014-01-29 23:42:35.892 http://hdl.handle.net/1974/8602 eng eng Canadian theses http://hdl.handle.net/1974/8602 This publication is made available by the authority of the copyright owner solely for the purpose of private study and research and may not be copied or reproduced except as permitted by the copyright laws without written authority from the copyright owner. Crumb Rubber Rheology Asphalt WMA thesis 2014 ftqueensuniv 2020-12-29T09:06:51Z Thesis (Master, Chemistry) -- Queen's University, 2014-01-30 11:56:43.978 Asphalt-rubber mixtures have been shown to have useful properties with respect to distresses observed in asphalt concrete pavements. The most notable change in properties is a large increase in viscosity and improved low-temperature cracking resistance. Warm mix additives can lower production and compaction temperatures. Lower temperatures reduce harmful emissions and lower energy consumption, and thus provide environmental benefits and cut costs. In this study, the effects of crumb rubber modification on various asphalts such as California Valley, Boscan, Alaska North Slope, Laguna and Cold Lake were also studied. The materials used for warm mix modification were obtained from various commercial sources. The RAF binder was produced by Imperial Oil in their Nanticoke, Ontario, refinery on Lake Erie. A second commercial PG 52-34 (hereafter denoted as NER) was obtained/sampled during the construction of a northern Ontario MTO contract. Some regular tests such as Dynamic Shear Rheometer (DSR) and Bending Beam Rheometer (BBR), Multiple Stress Creep Recovery (MSCR) and some modified new protocols such as the extended BBR test (LS-308) and the Double-Edge Notched Tension (DENT) test (LS-299) are used to study, the effect of warm mix and a host of other additives on rheological, aging and failure properties. A comparison in the properties of RAF and NER asphalts has also been made as RAF is good quality asphalt and NER is bad quality asphalt. From the studies the effect of additives on chemical and physical hardening tendencies was found to be significant. The asphalt samples tested in this study showed a range of tendencies for chemical and physical hardening. M.Sc. Thesis Alaska North Slope north slope Alaska Queen's University, Ontario: QSpace Dent ENVELOPE(140.050,140.050,-66.649,-66.649) Ner ENVELOPE(6.622,6.622,62.612,62.612) |
institution |
Open Polar |
collection |
Queen's University, Ontario: QSpace |
op_collection_id |
ftqueensuniv |
language |
English |
topic |
Crumb Rubber Rheology Asphalt WMA |
spellingShingle |
Crumb Rubber Rheology Asphalt WMA Agrawal, Prashant Effect of Crumb Rubber and Warm Mix Additives on Asphalt Aging, Rheological, and Failure Properties |
topic_facet |
Crumb Rubber Rheology Asphalt WMA |
description |
Thesis (Master, Chemistry) -- Queen's University, 2014-01-30 11:56:43.978 Asphalt-rubber mixtures have been shown to have useful properties with respect to distresses observed in asphalt concrete pavements. The most notable change in properties is a large increase in viscosity and improved low-temperature cracking resistance. Warm mix additives can lower production and compaction temperatures. Lower temperatures reduce harmful emissions and lower energy consumption, and thus provide environmental benefits and cut costs. In this study, the effects of crumb rubber modification on various asphalts such as California Valley, Boscan, Alaska North Slope, Laguna and Cold Lake were also studied. The materials used for warm mix modification were obtained from various commercial sources. The RAF binder was produced by Imperial Oil in their Nanticoke, Ontario, refinery on Lake Erie. A second commercial PG 52-34 (hereafter denoted as NER) was obtained/sampled during the construction of a northern Ontario MTO contract. Some regular tests such as Dynamic Shear Rheometer (DSR) and Bending Beam Rheometer (BBR), Multiple Stress Creep Recovery (MSCR) and some modified new protocols such as the extended BBR test (LS-308) and the Double-Edge Notched Tension (DENT) test (LS-299) are used to study, the effect of warm mix and a host of other additives on rheological, aging and failure properties. A comparison in the properties of RAF and NER asphalts has also been made as RAF is good quality asphalt and NER is bad quality asphalt. From the studies the effect of additives on chemical and physical hardening tendencies was found to be significant. The asphalt samples tested in this study showed a range of tendencies for chemical and physical hardening. M.Sc. |
author2 |
Hesp, Simon Chemistry |
format |
Thesis |
author |
Agrawal, Prashant |
author_facet |
Agrawal, Prashant |
author_sort |
Agrawal, Prashant |
title |
Effect of Crumb Rubber and Warm Mix Additives on Asphalt Aging, Rheological, and Failure Properties |
title_short |
Effect of Crumb Rubber and Warm Mix Additives on Asphalt Aging, Rheological, and Failure Properties |
title_full |
Effect of Crumb Rubber and Warm Mix Additives on Asphalt Aging, Rheological, and Failure Properties |
title_fullStr |
Effect of Crumb Rubber and Warm Mix Additives on Asphalt Aging, Rheological, and Failure Properties |
title_full_unstemmed |
Effect of Crumb Rubber and Warm Mix Additives on Asphalt Aging, Rheological, and Failure Properties |
title_sort |
effect of crumb rubber and warm mix additives on asphalt aging, rheological, and failure properties |
publishDate |
2014 |
url |
http://hdl.handle.net/1974/8602 |
long_lat |
ENVELOPE(140.050,140.050,-66.649,-66.649) ENVELOPE(6.622,6.622,62.612,62.612) |
geographic |
Dent Ner |
geographic_facet |
Dent Ner |
genre |
Alaska North Slope north slope Alaska |
genre_facet |
Alaska North Slope north slope Alaska |
op_relation |
Canadian theses http://hdl.handle.net/1974/8602 |
op_rights |
This publication is made available by the authority of the copyright owner solely for the purpose of private study and research and may not be copied or reproduced except as permitted by the copyright laws without written authority from the copyright owner. |
_version_ |
1766165459820871680 |