Improving recycled asphalt using sustainable hybrid rejuvenators with enhanced intercalation into oxidized asphaltenes nanoaggregates
This paper introduces a new bio-rejuvenator made from a blend of high-protein algae and high-lipid animal manure and studies its interaction with aged bitumen molecules to revitalize aged asphalt. True revitalization requires restoring not only the chemical balance but also the molecular conformatio...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Samieadel, Alireza [verfasserIn] Islam Rajib, Amirul [verfasserIn] Phani Raj Dandamudi, Kodanda [verfasserIn] Deng, Shuguang [verfasserIn] Fini, Elham H. [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2020 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Construction and building materials - Amsterdam [u.a.] : Elsevier Science, 1987, 262 |
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| Übergeordnetes Werk: |
volume:262 |
| DOI / URN: |
10.1016/j.conbuildmat.2020.120090 |
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ELV004876059 |
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| 520 | |a This paper introduces a new bio-rejuvenator made from a blend of high-protein algae and high-lipid animal manure and studies its interaction with aged bitumen molecules to revitalize aged asphalt. True revitalization requires restoring not only the chemical balance but also the molecular conformation. Therefore, rejuvenators should be able to de-agglomerate oxidized asphaltenes while compensating for components that are lost during aging. This study uses a balanced feedstock to control the composition and concentration of active molecules in a rejuvenator to increase its efficiency. To do so, a balanced combination of high-protein algae and high-lipid manure were used to synthesize bio-rejuvenator having different concentration of straight chain hydrocarbons and aromatic compounds, with the former helping to restore chemical balance, and the latter working to de-agglomerate oxidized asphaltene. This in turn can restore aged bitumen's molecular conformation, leading to restoration of its physicochemical and rheological properties. The study results showed that bio-rejuvenator produced from the algae-manure balanced feedstock was more effective rejuvenator than using either of algae or manure solely. The superiority of rejuvenator made by co-liquefaction of a balanced feedstock verified by comparing its dosage efficiency with that of its counterparts made from isolated bio-mass sources. The comparison was done based on the extent of increase in crossover modulus and crossover frequency of an aged bitumen doped with a constant dosage of each rejuvenator with co-liquified scenario showing a much higher increase than other scenarios. Molecular dynamics simulation results revealed that latter bio-rejuvenator’s molecules have a peptizing effect on oxidized asphaltene molecules leading to a significant decrease in the radial distribution function of oxidized asphaltene molecules restoring their molecular conformation. This in turn leads to revitalizing aged asphalt physio-chemical properties to enable reuse and recycling of aged asphalt composites and improve recycling of asphalt pavements to promote sustainability. | ||
| 650 | 4 | |a Bio-rejuvenation | |
| 650 | 4 | |a Oxidative aging | |
| 650 | 4 | |a Molecular dynamics | |
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| 650 | 4 | |a Asphaltene | |
| 700 | 1 | |a Islam Rajib, Amirul |e verfasserin |4 aut | |
| 700 | 1 | |a Phani Raj Dandamudi, Kodanda |e verfasserin |4 aut | |
| 700 | 1 | |a Deng, Shuguang |e verfasserin |4 aut | |
| 700 | 1 | |a Fini, Elham H. |e verfasserin |0 (orcid)0000-0002-3658-0006 |4 aut | |
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10.1016/j.conbuildmat.2020.120090 doi (DE-627)ELV004876059 (ELSEVIER)S0950-0618(20)32095-X DE-627 ger DE-627 rda eng 690 DE-600 56.45 bkl Samieadel, Alireza verfasserin aut Improving recycled asphalt using sustainable hybrid rejuvenators with enhanced intercalation into oxidized asphaltenes nanoaggregates 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier This paper introduces a new bio-rejuvenator made from a blend of high-protein algae and high-lipid animal manure and studies its interaction with aged bitumen molecules to revitalize aged asphalt. True revitalization requires restoring not only the chemical balance but also the molecular conformation. Therefore, rejuvenators should be able to de-agglomerate oxidized asphaltenes while compensating for components that are lost during aging. This study uses a balanced feedstock to control the composition and concentration of active molecules in a rejuvenator to increase its efficiency. To do so, a balanced combination of high-protein algae and high-lipid manure were used to synthesize bio-rejuvenator having different concentration of straight chain hydrocarbons and aromatic compounds, with the former helping to restore chemical balance, and the latter working to de-agglomerate oxidized asphaltene. This in turn can restore aged bitumen's molecular conformation, leading to restoration of its physicochemical and rheological properties. The study results showed that bio-rejuvenator produced from the algae-manure balanced feedstock was more effective rejuvenator than using either of algae or manure solely. The superiority of rejuvenator made by co-liquefaction of a balanced feedstock verified by comparing its dosage efficiency with that of its counterparts made from isolated bio-mass sources. The comparison was done based on the extent of increase in crossover modulus and crossover frequency of an aged bitumen doped with a constant dosage of each rejuvenator with co-liquified scenario showing a much higher increase than other scenarios. Molecular dynamics simulation results revealed that latter bio-rejuvenator’s molecules have a peptizing effect on oxidized asphaltene molecules leading to a significant decrease in the radial distribution function of oxidized asphaltene molecules restoring their molecular conformation. This in turn leads to revitalizing aged asphalt physio-chemical properties to enable reuse and recycling of aged asphalt composites and improve recycling of asphalt pavements to promote sustainability. Bio-rejuvenation Oxidative aging Molecular dynamics Balanced feedstock Asphaltene Islam Rajib, Amirul verfasserin aut Phani Raj Dandamudi, Kodanda verfasserin aut Deng, Shuguang verfasserin aut Fini, Elham H. verfasserin (orcid)0000-0002-3658-0006 aut Enthalten in Construction and building materials Amsterdam [u.a.] : Elsevier Science, 1987 262 Online-Ressource (DE-627)320423115 (DE-600)2002804-0 (DE-576)259271187 nnns volume:262 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 56.45 Baustoffkunde AR 262 |
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10.1016/j.conbuildmat.2020.120090 doi (DE-627)ELV004876059 (ELSEVIER)S0950-0618(20)32095-X DE-627 ger DE-627 rda eng 690 DE-600 56.45 bkl Samieadel, Alireza verfasserin aut Improving recycled asphalt using sustainable hybrid rejuvenators with enhanced intercalation into oxidized asphaltenes nanoaggregates 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier This paper introduces a new bio-rejuvenator made from a blend of high-protein algae and high-lipid animal manure and studies its interaction with aged bitumen molecules to revitalize aged asphalt. True revitalization requires restoring not only the chemical balance but also the molecular conformation. Therefore, rejuvenators should be able to de-agglomerate oxidized asphaltenes while compensating for components that are lost during aging. This study uses a balanced feedstock to control the composition and concentration of active molecules in a rejuvenator to increase its efficiency. To do so, a balanced combination of high-protein algae and high-lipid manure were used to synthesize bio-rejuvenator having different concentration of straight chain hydrocarbons and aromatic compounds, with the former helping to restore chemical balance, and the latter working to de-agglomerate oxidized asphaltene. This in turn can restore aged bitumen's molecular conformation, leading to restoration of its physicochemical and rheological properties. The study results showed that bio-rejuvenator produced from the algae-manure balanced feedstock was more effective rejuvenator than using either of algae or manure solely. The superiority of rejuvenator made by co-liquefaction of a balanced feedstock verified by comparing its dosage efficiency with that of its counterparts made from isolated bio-mass sources. The comparison was done based on the extent of increase in crossover modulus and crossover frequency of an aged bitumen doped with a constant dosage of each rejuvenator with co-liquified scenario showing a much higher increase than other scenarios. Molecular dynamics simulation results revealed that latter bio-rejuvenator’s molecules have a peptizing effect on oxidized asphaltene molecules leading to a significant decrease in the radial distribution function of oxidized asphaltene molecules restoring their molecular conformation. This in turn leads to revitalizing aged asphalt physio-chemical properties to enable reuse and recycling of aged asphalt composites and improve recycling of asphalt pavements to promote sustainability. Bio-rejuvenation Oxidative aging Molecular dynamics Balanced feedstock Asphaltene Islam Rajib, Amirul verfasserin aut Phani Raj Dandamudi, Kodanda verfasserin aut Deng, Shuguang verfasserin aut Fini, Elham H. verfasserin (orcid)0000-0002-3658-0006 aut Enthalten in Construction and building materials Amsterdam [u.a.] : Elsevier Science, 1987 262 Online-Ressource (DE-627)320423115 (DE-600)2002804-0 (DE-576)259271187 nnns volume:262 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 56.45 Baustoffkunde AR 262 |
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10.1016/j.conbuildmat.2020.120090 doi (DE-627)ELV004876059 (ELSEVIER)S0950-0618(20)32095-X DE-627 ger DE-627 rda eng 690 DE-600 56.45 bkl Samieadel, Alireza verfasserin aut Improving recycled asphalt using sustainable hybrid rejuvenators with enhanced intercalation into oxidized asphaltenes nanoaggregates 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier This paper introduces a new bio-rejuvenator made from a blend of high-protein algae and high-lipid animal manure and studies its interaction with aged bitumen molecules to revitalize aged asphalt. True revitalization requires restoring not only the chemical balance but also the molecular conformation. Therefore, rejuvenators should be able to de-agglomerate oxidized asphaltenes while compensating for components that are lost during aging. This study uses a balanced feedstock to control the composition and concentration of active molecules in a rejuvenator to increase its efficiency. To do so, a balanced combination of high-protein algae and high-lipid manure were used to synthesize bio-rejuvenator having different concentration of straight chain hydrocarbons and aromatic compounds, with the former helping to restore chemical balance, and the latter working to de-agglomerate oxidized asphaltene. This in turn can restore aged bitumen's molecular conformation, leading to restoration of its physicochemical and rheological properties. The study results showed that bio-rejuvenator produced from the algae-manure balanced feedstock was more effective rejuvenator than using either of algae or manure solely. The superiority of rejuvenator made by co-liquefaction of a balanced feedstock verified by comparing its dosage efficiency with that of its counterparts made from isolated bio-mass sources. The comparison was done based on the extent of increase in crossover modulus and crossover frequency of an aged bitumen doped with a constant dosage of each rejuvenator with co-liquified scenario showing a much higher increase than other scenarios. Molecular dynamics simulation results revealed that latter bio-rejuvenator’s molecules have a peptizing effect on oxidized asphaltene molecules leading to a significant decrease in the radial distribution function of oxidized asphaltene molecules restoring their molecular conformation. This in turn leads to revitalizing aged asphalt physio-chemical properties to enable reuse and recycling of aged asphalt composites and improve recycling of asphalt pavements to promote sustainability. Bio-rejuvenation Oxidative aging Molecular dynamics Balanced feedstock Asphaltene Islam Rajib, Amirul verfasserin aut Phani Raj Dandamudi, Kodanda verfasserin aut Deng, Shuguang verfasserin aut Fini, Elham H. verfasserin (orcid)0000-0002-3658-0006 aut Enthalten in Construction and building materials Amsterdam [u.a.] : Elsevier Science, 1987 262 Online-Ressource (DE-627)320423115 (DE-600)2002804-0 (DE-576)259271187 nnns volume:262 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 56.45 Baustoffkunde AR 262 |
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10.1016/j.conbuildmat.2020.120090 doi (DE-627)ELV004876059 (ELSEVIER)S0950-0618(20)32095-X DE-627 ger DE-627 rda eng 690 DE-600 56.45 bkl Samieadel, Alireza verfasserin aut Improving recycled asphalt using sustainable hybrid rejuvenators with enhanced intercalation into oxidized asphaltenes nanoaggregates 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier This paper introduces a new bio-rejuvenator made from a blend of high-protein algae and high-lipid animal manure and studies its interaction with aged bitumen molecules to revitalize aged asphalt. True revitalization requires restoring not only the chemical balance but also the molecular conformation. Therefore, rejuvenators should be able to de-agglomerate oxidized asphaltenes while compensating for components that are lost during aging. This study uses a balanced feedstock to control the composition and concentration of active molecules in a rejuvenator to increase its efficiency. To do so, a balanced combination of high-protein algae and high-lipid manure were used to synthesize bio-rejuvenator having different concentration of straight chain hydrocarbons and aromatic compounds, with the former helping to restore chemical balance, and the latter working to de-agglomerate oxidized asphaltene. This in turn can restore aged bitumen's molecular conformation, leading to restoration of its physicochemical and rheological properties. The study results showed that bio-rejuvenator produced from the algae-manure balanced feedstock was more effective rejuvenator than using either of algae or manure solely. The superiority of rejuvenator made by co-liquefaction of a balanced feedstock verified by comparing its dosage efficiency with that of its counterparts made from isolated bio-mass sources. The comparison was done based on the extent of increase in crossover modulus and crossover frequency of an aged bitumen doped with a constant dosage of each rejuvenator with co-liquified scenario showing a much higher increase than other scenarios. Molecular dynamics simulation results revealed that latter bio-rejuvenator’s molecules have a peptizing effect on oxidized asphaltene molecules leading to a significant decrease in the radial distribution function of oxidized asphaltene molecules restoring their molecular conformation. This in turn leads to revitalizing aged asphalt physio-chemical properties to enable reuse and recycling of aged asphalt composites and improve recycling of asphalt pavements to promote sustainability. Bio-rejuvenation Oxidative aging Molecular dynamics Balanced feedstock Asphaltene Islam Rajib, Amirul verfasserin aut Phani Raj Dandamudi, Kodanda verfasserin aut Deng, Shuguang verfasserin aut Fini, Elham H. verfasserin (orcid)0000-0002-3658-0006 aut Enthalten in Construction and building materials Amsterdam [u.a.] : Elsevier Science, 1987 262 Online-Ressource (DE-627)320423115 (DE-600)2002804-0 (DE-576)259271187 nnns volume:262 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 56.45 Baustoffkunde AR 262 |
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10.1016/j.conbuildmat.2020.120090 doi (DE-627)ELV004876059 (ELSEVIER)S0950-0618(20)32095-X DE-627 ger DE-627 rda eng 690 DE-600 56.45 bkl Samieadel, Alireza verfasserin aut Improving recycled asphalt using sustainable hybrid rejuvenators with enhanced intercalation into oxidized asphaltenes nanoaggregates 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier This paper introduces a new bio-rejuvenator made from a blend of high-protein algae and high-lipid animal manure and studies its interaction with aged bitumen molecules to revitalize aged asphalt. True revitalization requires restoring not only the chemical balance but also the molecular conformation. Therefore, rejuvenators should be able to de-agglomerate oxidized asphaltenes while compensating for components that are lost during aging. This study uses a balanced feedstock to control the composition and concentration of active molecules in a rejuvenator to increase its efficiency. To do so, a balanced combination of high-protein algae and high-lipid manure were used to synthesize bio-rejuvenator having different concentration of straight chain hydrocarbons and aromatic compounds, with the former helping to restore chemical balance, and the latter working to de-agglomerate oxidized asphaltene. This in turn can restore aged bitumen's molecular conformation, leading to restoration of its physicochemical and rheological properties. The study results showed that bio-rejuvenator produced from the algae-manure balanced feedstock was more effective rejuvenator than using either of algae or manure solely. The superiority of rejuvenator made by co-liquefaction of a balanced feedstock verified by comparing its dosage efficiency with that of its counterparts made from isolated bio-mass sources. The comparison was done based on the extent of increase in crossover modulus and crossover frequency of an aged bitumen doped with a constant dosage of each rejuvenator with co-liquified scenario showing a much higher increase than other scenarios. Molecular dynamics simulation results revealed that latter bio-rejuvenator’s molecules have a peptizing effect on oxidized asphaltene molecules leading to a significant decrease in the radial distribution function of oxidized asphaltene molecules restoring their molecular conformation. This in turn leads to revitalizing aged asphalt physio-chemical properties to enable reuse and recycling of aged asphalt composites and improve recycling of asphalt pavements to promote sustainability. Bio-rejuvenation Oxidative aging Molecular dynamics Balanced feedstock Asphaltene Islam Rajib, Amirul verfasserin aut Phani Raj Dandamudi, Kodanda verfasserin aut Deng, Shuguang verfasserin aut Fini, Elham H. verfasserin (orcid)0000-0002-3658-0006 aut Enthalten in Construction and building materials Amsterdam [u.a.] : Elsevier Science, 1987 262 Online-Ressource (DE-627)320423115 (DE-600)2002804-0 (DE-576)259271187 nnns volume:262 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 56.45 Baustoffkunde AR 262 |
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Samieadel, Alireza @@aut@@ Islam Rajib, Amirul @@aut@@ Phani Raj Dandamudi, Kodanda @@aut@@ Deng, Shuguang @@aut@@ Fini, Elham H. @@aut@@ |
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Samieadel, Alireza |
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improving recycled asphalt using sustainable hybrid rejuvenators with enhanced intercalation into oxidized asphaltenes nanoaggregates |
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Improving recycled asphalt using sustainable hybrid rejuvenators with enhanced intercalation into oxidized asphaltenes nanoaggregates |
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This paper introduces a new bio-rejuvenator made from a blend of high-protein algae and high-lipid animal manure and studies its interaction with aged bitumen molecules to revitalize aged asphalt. True revitalization requires restoring not only the chemical balance but also the molecular conformation. Therefore, rejuvenators should be able to de-agglomerate oxidized asphaltenes while compensating for components that are lost during aging. This study uses a balanced feedstock to control the composition and concentration of active molecules in a rejuvenator to increase its efficiency. To do so, a balanced combination of high-protein algae and high-lipid manure were used to synthesize bio-rejuvenator having different concentration of straight chain hydrocarbons and aromatic compounds, with the former helping to restore chemical balance, and the latter working to de-agglomerate oxidized asphaltene. This in turn can restore aged bitumen's molecular conformation, leading to restoration of its physicochemical and rheological properties. The study results showed that bio-rejuvenator produced from the algae-manure balanced feedstock was more effective rejuvenator than using either of algae or manure solely. The superiority of rejuvenator made by co-liquefaction of a balanced feedstock verified by comparing its dosage efficiency with that of its counterparts made from isolated bio-mass sources. The comparison was done based on the extent of increase in crossover modulus and crossover frequency of an aged bitumen doped with a constant dosage of each rejuvenator with co-liquified scenario showing a much higher increase than other scenarios. Molecular dynamics simulation results revealed that latter bio-rejuvenator’s molecules have a peptizing effect on oxidized asphaltene molecules leading to a significant decrease in the radial distribution function of oxidized asphaltene molecules restoring their molecular conformation. This in turn leads to revitalizing aged asphalt physio-chemical properties to enable reuse and recycling of aged asphalt composites and improve recycling of asphalt pavements to promote sustainability. |
| abstractGer |
This paper introduces a new bio-rejuvenator made from a blend of high-protein algae and high-lipid animal manure and studies its interaction with aged bitumen molecules to revitalize aged asphalt. True revitalization requires restoring not only the chemical balance but also the molecular conformation. Therefore, rejuvenators should be able to de-agglomerate oxidized asphaltenes while compensating for components that are lost during aging. This study uses a balanced feedstock to control the composition and concentration of active molecules in a rejuvenator to increase its efficiency. To do so, a balanced combination of high-protein algae and high-lipid manure were used to synthesize bio-rejuvenator having different concentration of straight chain hydrocarbons and aromatic compounds, with the former helping to restore chemical balance, and the latter working to de-agglomerate oxidized asphaltene. This in turn can restore aged bitumen's molecular conformation, leading to restoration of its physicochemical and rheological properties. The study results showed that bio-rejuvenator produced from the algae-manure balanced feedstock was more effective rejuvenator than using either of algae or manure solely. The superiority of rejuvenator made by co-liquefaction of a balanced feedstock verified by comparing its dosage efficiency with that of its counterparts made from isolated bio-mass sources. The comparison was done based on the extent of increase in crossover modulus and crossover frequency of an aged bitumen doped with a constant dosage of each rejuvenator with co-liquified scenario showing a much higher increase than other scenarios. Molecular dynamics simulation results revealed that latter bio-rejuvenator’s molecules have a peptizing effect on oxidized asphaltene molecules leading to a significant decrease in the radial distribution function of oxidized asphaltene molecules restoring their molecular conformation. This in turn leads to revitalizing aged asphalt physio-chemical properties to enable reuse and recycling of aged asphalt composites and improve recycling of asphalt pavements to promote sustainability. |
| abstract_unstemmed |
This paper introduces a new bio-rejuvenator made from a blend of high-protein algae and high-lipid animal manure and studies its interaction with aged bitumen molecules to revitalize aged asphalt. True revitalization requires restoring not only the chemical balance but also the molecular conformation. Therefore, rejuvenators should be able to de-agglomerate oxidized asphaltenes while compensating for components that are lost during aging. This study uses a balanced feedstock to control the composition and concentration of active molecules in a rejuvenator to increase its efficiency. To do so, a balanced combination of high-protein algae and high-lipid manure were used to synthesize bio-rejuvenator having different concentration of straight chain hydrocarbons and aromatic compounds, with the former helping to restore chemical balance, and the latter working to de-agglomerate oxidized asphaltene. This in turn can restore aged bitumen's molecular conformation, leading to restoration of its physicochemical and rheological properties. The study results showed that bio-rejuvenator produced from the algae-manure balanced feedstock was more effective rejuvenator than using either of algae or manure solely. The superiority of rejuvenator made by co-liquefaction of a balanced feedstock verified by comparing its dosage efficiency with that of its counterparts made from isolated bio-mass sources. The comparison was done based on the extent of increase in crossover modulus and crossover frequency of an aged bitumen doped with a constant dosage of each rejuvenator with co-liquified scenario showing a much higher increase than other scenarios. Molecular dynamics simulation results revealed that latter bio-rejuvenator’s molecules have a peptizing effect on oxidized asphaltene molecules leading to a significant decrease in the radial distribution function of oxidized asphaltene molecules restoring their molecular conformation. This in turn leads to revitalizing aged asphalt physio-chemical properties to enable reuse and recycling of aged asphalt composites and improve recycling of asphalt pavements to promote sustainability. |
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| score |
7.399583 |