Research on Rheological Properties of High‐Percentage Artificial RAP Binder with WMA Additives

Wang, Weiying; Huang, Songchang; Qin, Yawei; Sun, Yiren; Dong, Rui; Chen, Jingyun

doi:10.1155/2020/1238378

Cited by 8 publications

(4 citation statements)

References 36 publications

(38 reference statements)

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“…A tecnologia de reciclagem de pavimentos vem atraindo atenção, cada vez mais, pois se mostra vantajosa para diminuição do consumo de asfalto e agregados novos, proporcionando sustentabilidade ambiental e benefícios econômicos (Wang et al, 2020a,b). Assim, com o desenvolvimento da tecnologia de reciclagem e devido à expressiva quantidade de RAP gerada, há uma demanda por aumento do teor de RAP a ser empregado em misturas asfálticas recicladas (Wang et al, 2020b).…”

Section: Misturas Asfálticas Recicladasunclassified

Economia circular como mecanismo de gestão ambiental: utilização de RAP em camadas de revestimento asfáltico

Mendes,

Bezerra,

Souza

et al. 2023

Rev. Bras. Gest. Amb. Sustent.

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Com a crescente preocupação relacionada aos impactos ambientais causados pelas atividades do setor de infraestrutura de transportes, tem-se buscado soluções para a reutilização dos resíduos gerados pelo fim da vida útil dos pavimentos. O presente artigo tem como proposta abordar o conceito de economia circular como mecanismo da gestão ambiental incorporado na indústria da pavimentação. Foi analisado o potencial de incorporação do Reclaimed Asphalt Pavement (RAP) na produção de novas misturas asfálticas. Como abordagem metodológica foi utilizada uma revisão sistemática de literatura que utilizou critérios de inclusão e exclusão para seleção dos trabalhos a fins da questão de pesquisa. A partir da análise dos trabalhos selecionados constatou-se que o emprego do RAP em misturas asfálticas é capaz de oferecer benefícios ambientais, como também bom desempenho mecânico.

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Section: Misturas Asfálticas Recicladasunclassified

Economia circular como mecanismo de gestão ambiental: utilização de RAP em camadas de revestimento asfáltico

Mendes,

Bezerra,

Souza

et al. 2023

Rev. Bras. Gest. Amb. Sustent.

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“…3. Determination of medium temperature zone of road asphalt 3.1 Critical range of medium temperature zone of road asphalt based on penetration index As a temperature sensitive material, the relevant indexes of viscoelastic properties of asphalt will change accordingly with the change of temperature (Wang et al, 2017(Wang et al, , 2020. The Superpave user manual describes that the pavement temperature of asphalt pavement in the actual use process can reach more than 80 8C, that is, the actual pavement temperature is much higher than the air temperature, and there is a certain conversion relationship between the two.…”

Section: Evaluation Of Viscoelastic Characteristicsmentioning

confidence: 99%

Evolution and comprehensive evaluation of viscoelastic characteristics of road asphalt in medium temperature region

Zhang

et al. 2022

MMMS

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PurposeIn order to determine the range of medium temperature zone of road asphalt, it is hoped that the evolution of viscoelastic characteristics of road asphalt under medium temperature state can be deeply explored.Design/methodology/approachIn this paper, the needle penetration test and temperature scanning test were designed for 90# and 70# bitumen as test materials, and the boundary of medium temperature zone of 90# and 70# bitumen was accurately determined by data analysis method. A mathematical model was established based on principal component analysis, and a comprehensive evaluation index was proposed to evaluate the evolution of temperature viscoelastic characteristics of road asphalt by means of standardization and rotational dimensionality reduction.FindingsThe test results show that the medium temperature zone of 90# asphalt is [−5 ± 1°C, 38 ± 1°C], and the medium temperature zone of 70# asphalt is [0 ± 1°C, 51 ± 1°C]. According to the viscoelastic response of road asphalt in the medium temperature zone, the medium temperature zone can be divided into three evolution stages: weak viscoelastic stage, viscoelastic equilibrium stage, strong viscoelastic weak stage. Analysis based on the intrinsic viscosity fillip target describing the various intrinsic viscoelastic index represents the viscoelastic properties of bitumen from different angles, and limitations inherent stick fillip for target put forward the integrated the inherent stick fillip mark information, as well as targeted and accurate evaluation of road asphalt temperature comprehensive evaluation indexes in the evolution of the viscoelastic properties of IM-T. Finally, the temperature data of asphalt pavement in several representative regions of China are compared with the determined medium temperature region, and it is proved that the research on the evolution of viscoelastic characteristics of asphalt pavement under the medium temperature condition has important practical significance.Originality/valueThe boundary of medium temperature zone of 90# and 70# base asphalt was determined, and the viscoelastic characteristic evolution of road asphalt under medium temperature state was studied deeply. Aiming at the limitation of intrinsic viscoelastic index, a comprehensive evaluation index IM-T which not only integrates the information of intrinsic viscoelastic index but also can accurately evaluate the evolution of temperature viscoelastic characteristics in road asphalt is proposed.

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“…Several researches have previously been conducted to evaluate the effect of waste kitchen oil in reclaimed asphalt pavement. Additionally, several researches have been implemented where bio binders were used [32][33][34].…”

Section: Introductionmentioning

confidence: 99%

Influence of Soybean Oil on Binder and Warm Mixture Asphalt Properties

Babagoli

Ameli

2021

Advances in Materials Science and Engineering

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To produce a usual hot mix asphalt, significant amount of energy is used, which causes air pollution. As a result, warm mix asphalt (WMA) is introduced to reduce the mixing and compaction temperature of the mixture. On the one hand, accumulation of waste oil in the ground occupies a large space in the Earth. After the process of frying the oil, if the by-product is not controlled properly, it leads to the pollution of the environment. Hence, utilization of this waste oil can be considered as a sustainable path to dealing with the risk. The main goal of the current research is to evaluate the possibility of exploiting soybean oil to reduce the mixing and compaction temperature of mixtures and produce warm mix asphalt (WMA). Moreover, the rheological and performance properties of mixtures containing soybean are evaluated in this study. The AC-60/70 and 85/100 binders are modified by soybean oil (0%, 1.5%, 2.5%, and 3.5% by weight of binder). Several binder tests are used to measure the physical and rheological behaviors of binders, such as penetration grade, softening point, temperature susceptibility, rotational viscosity (RV), Multiple Stress Creep Recovery (MSCR), and Linear Amplitude Sweep (LAS) tests. Besides, several mixture tests are used to evaluate the performance of the mixture, including four-point bending beam fatigue (FPB), resilient modulus (Mr), indirect tensile strength (ITS), dynamic creep, and wheel track tests. Through MSCR test results, at two stress levels, the Jnr parameter increases as the soybean oil is added to the binder. The results of the LAS test revealed that the fatigue life of binders increases by addition of soybean oil. There is no significant difference between the results of new and waste oil. This in turn makes possible reducing soybean oil production and consumption, and instead frying oil (waste) is reused, which displays no significant difference in terms of chemical and physical properties. Also, the performance test of mixtures indicated that as the soybean oil is added to the mixture, the rutting performance decreases and fatigue performance increases. Based on the results, it is recommended to use 1.5% soybean oil in asphalt mixtures without compromising the performance of the mixture. ANOVA results showed that the warm additive had meaningful effects on MR, ITS, and FE; the same was true for the effects of the warm additive-binder type interaction.

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Research on Rheological Properties of High‐Percentage Artificial RAP Binder with WMA Additives

Cited by 8 publications

References 36 publications

Economia circular como mecanismo de gestão ambiental: utilização de RAP em camadas de revestimento asfáltico

Economia circular como mecanismo de gestão ambiental: utilização de RAP em camadas de revestimento asfáltico

Evolution and comprehensive evaluation of viscoelastic characteristics of road asphalt in medium temperature region

Influence of Soybean Oil on Binder and Warm Mixture Asphalt Properties

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