Optimizing the Effective Use of RAP in Local Roadways by Using Recycling Agents.

Optimizing the Effective Use of RAP in Local Roadways by Using Recycling Agents.

Bibliographic Details
Main Author: Abushama, Amro
Language:English
Published: Ohio University / OhioLINK 2018
Subjects:
Civil Engineering
RAP
recycling agents
sylvaroad
hydrolene
soybean
reclaimed asphalt pavement
rutting
low temperature cracking
moisture damage
SCB
fatigue cracking
asphalt pavement
Online Access:http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1529667845250744
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spelling ndltd-OhioLink-oai-etd.ohiolink.edu-ohiou15296678452507442021-08-03T07:07:20Z Optimizing the Effective Use of RAP in Local Roadways by Using Recycling Agents. Abushama, Amro Civil Engineering RAP recycling agents sylvaroad hydrolene soybean reclaimed asphalt pavement rutting low temperature cracking moisture damage SCB fatigue cracking asphalt pavement This study evaluates the effect of using recycling agents (RA) on the performance of asphalt mixtures containing high reclaimed asphalt pavement (RAP) content and compares it to that of using softer asphalt binder. Asphalt mixes with three different RAP contents, namely, 30%, 40%, and 50% RAP that include a recycling agent or soft asphalt binder were designed and tested. Three different recycling agents were used (Sylvaroad, Hydrolene and Soybean oils). Different tests were used to evaluate the fatigue cracking, low-temperature cracking, moisture damage susceptibility and rutting of asphalt. In addition, cost analyses were performed to examine the cost effectiveness of using recycling agents in high RAP mixes. The results of this study showed that the use of softer asphalt PG 64-28 binder was not effective when more than 30% RAP was used in the asphalt mix. Sylvaroad-RA and Hydrolene-RA were efficient in improving the fatigue cracking resistance in mixes with up to 50% RAP. However, the Soybean-RA with 40% and 50% RAP had much lower fatigue cracking resistance compared to the mixes with the other RAs. Although Soybean- RA had the lowest Indirect Tensile Strength (ITS) values and highest rut depth, all mixes had acceptable resistance to moisture damage and rutting. The results of the cost analysis indicated that a 50% RAP mix with Hydrolene can reduce the cost of asphalt mix cost by 26% as compared to the currently used RAP mixes. In addition, the 50% RAP mix with Sylvaroad is 13% cheaper than the RAP mixes currently being used. 2018-09-25 English text Ohio University / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1529667845250744 http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1529667845250744 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws.
collection NDLTD
language English
sources NDLTD
topic Civil Engineering
RAP
recycling agents
sylvaroad
hydrolene
soybean
reclaimed asphalt pavement
rutting
low temperature cracking
moisture damage
SCB
fatigue cracking
asphalt pavement
spellingShingle Civil Engineering
RAP
recycling agents
sylvaroad
hydrolene
soybean
reclaimed asphalt pavement
rutting
low temperature cracking
moisture damage
SCB
fatigue cracking
asphalt pavement
Abushama, Amro
Optimizing the Effective Use of RAP in Local Roadways by Using Recycling Agents.
author Abushama, Amro
author_facet Abushama, Amro
author_sort Abushama, Amro
title Optimizing the Effective Use of RAP in Local Roadways by Using Recycling Agents.
title_short Optimizing the Effective Use of RAP in Local Roadways by Using Recycling Agents.
title_full Optimizing the Effective Use of RAP in Local Roadways by Using Recycling Agents.
title_fullStr Optimizing the Effective Use of RAP in Local Roadways by Using Recycling Agents.
title_full_unstemmed Optimizing the Effective Use of RAP in Local Roadways by Using Recycling Agents.
title_sort optimizing the effective use of rap in local roadways by using recycling agents.
publisher Ohio University / OhioLINK
publishDate 2018
url http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1529667845250744
work_keys_str_mv AT abushamaamro optimizingtheeffectiveuseofrapinlocalroadwaysbyusingrecyclingagents
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