Evaluation of a rejuvenator as an additive in asphalt

Abstract: Ecuadorian asphalt has the particularity of being prone to premature aging; therefore, the asphalt pavements have insufficient durability. The objective of this experimental work is to assess the effect that a modification with the rejuvenating agent Sylvaroad RP-1000 produces on the prope...

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Autores principales:	Vila,V., Mera,W., Jaramillo,J.
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Chile. Departamento de Ingeniería y Gestión de la Construcción 2021
Materias:	Asphalt asphalt mix rejuvenating aging NAT
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-50732021000200222
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spelling	oai:scielo:S0718-507320210002002222021-10-05Evaluation of a rejuvenator as an additive in asphaltVila,V.Mera,W.Jaramillo,J. Asphalt asphalt mix rejuvenating aging NAT Abstract: Ecuadorian asphalt has the particularity of being prone to premature aging; therefore, the asphalt pavements have insufficient durability. The objective of this experimental work is to assess the effect that a modification with the rejuvenating agent Sylvaroad RP-1000 produces on the properties of AC 20 asphalt from the Esmeraldas Refinery, as well as evaluating its impact on the quality of a typical asphalt mix, without reclaimed asphalt pavement, prepared with modified and unmodified asphalt. The asphalt used is also classified as PG 64-22 and when mixed with 2.5% by weight of the rejuvenator, the grade changed to PG 58-28. Additional studies were carried out using the ΔTc, Glover-Rowe parameters and the corresponding transition temperatures, showing improvements in the results. At that point, a dense mix with 5.5% asphalt was designed. Stiffness modulus, cyclic compression and fatigue modulus tests were applied with the NAT equipment to the specimens. When using modified asphalt, the fatigue behavior improved remarkably. Additionally, an aging process in oven at 85 ° C was applied to both mixtures, measuring the stiffness modulus and fatigue at 8 days, which demonstrated an adequate behavior only in the mixture made with rejuvenator.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Chile. Departamento de Ingeniería y Gestión de la ConstrucciónRevista ingeniería de construcción v.36 n.2 20212021-08-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-50732021000200222en10.4067/S0718-50732021000200222
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Asphalt asphalt mix rejuvenating aging NAT
spellingShingle	Asphalt asphalt mix rejuvenating aging NAT Vila,V. Mera,W. Jaramillo,J. Evaluation of a rejuvenator as an additive in asphalt
description	Abstract: Ecuadorian asphalt has the particularity of being prone to premature aging; therefore, the asphalt pavements have insufficient durability. The objective of this experimental work is to assess the effect that a modification with the rejuvenating agent Sylvaroad RP-1000 produces on the properties of AC 20 asphalt from the Esmeraldas Refinery, as well as evaluating its impact on the quality of a typical asphalt mix, without reclaimed asphalt pavement, prepared with modified and unmodified asphalt. The asphalt used is also classified as PG 64-22 and when mixed with 2.5% by weight of the rejuvenator, the grade changed to PG 58-28. Additional studies were carried out using the ΔTc, Glover-Rowe parameters and the corresponding transition temperatures, showing improvements in the results. At that point, a dense mix with 5.5% asphalt was designed. Stiffness modulus, cyclic compression and fatigue modulus tests were applied with the NAT equipment to the specimens. When using modified asphalt, the fatigue behavior improved remarkably. Additionally, an aging process in oven at 85 ° C was applied to both mixtures, measuring the stiffness modulus and fatigue at 8 days, which demonstrated an adequate behavior only in the mixture made with rejuvenator.
author	Vila,V. Mera,W. Jaramillo,J.
author_facet	Vila,V. Mera,W. Jaramillo,J.
author_sort	Vila,V.
title	Evaluation of a rejuvenator as an additive in asphalt
title_short	Evaluation of a rejuvenator as an additive in asphalt
title_full	Evaluation of a rejuvenator as an additive in asphalt
title_fullStr	Evaluation of a rejuvenator as an additive in asphalt
title_full_unstemmed	Evaluation of a rejuvenator as an additive in asphalt
title_sort	evaluation of a rejuvenator as an additive in asphalt
publisher	Pontificia Universidad Católica de Chile. Departamento de Ingeniería y Gestión de la Construcción
publishDate	2021
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-50732021000200222
work_keys_str_mv	AT vilav evaluationofarejuvenatorasanadditiveinasphalt AT meraw evaluationofarejuvenatorasanadditiveinasphalt AT jaramilloj evaluationofarejuvenatorasanadditiveinasphalt
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Evaluation of a rejuvenator as an additive in asphalt

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