Outputs (12)

Engineering bitumen for future asphalt pavements: A review of chemistry, structure and rheology (2024)
Journal Article
Pipintakos, G., Sreeram, A., Mirwald, J., & Bhasin, A. (2024). Engineering bitumen for future asphalt pavements: A review of chemistry, structure and rheology. Materials and Design, Article 113157. https://doi.org/10.1016/j.matdes.2024.113157

Bitumen, a product mostly used as a binder in road construction, has been subject of numerous scientific investigations with the goal to optimise its function as an engineering material. Although a lot of research has been devoted to the three main p... Read More about Engineering bitumen for future asphalt pavements: A review of chemistry, structure and rheology.

Assessing correlations between two linear amplitude sweep (LAS) standards for evaluating the fatigue properties of aged bitumen (2024)
Journal Article
Hu, Y., Sreeram, A., Bahia, H. U., Airey, G. D., Si, W., Li, B., & Xu, X. (2024). Assessing correlations between two linear amplitude sweep (LAS) standards for evaluating the fatigue properties of aged bitumen. International Journal of Pavement Engineering, 25(1), Article 2375419. https://doi.org/10.1080/10298436.2024.2375419

Linear amplitude sweep (LAS) is an accelerated and well-established testing method to evaluate bitumen fatigue. However, there are different versions of LAS procedures employed. Significant differences in loading modes, damage failure criteria and ca... Read More about Assessing correlations between two linear amplitude sweep (LAS) standards for evaluating the fatigue properties of aged bitumen.

Recovering the properties of aged bitumen using bio-rejuvenators derived from municipal wastes (2024)
Journal Article
Hu, Y., Omairey, E., Hughes, D., Bailey, H., Watkins, M., Twitchen, J., …Sreeram, A. (2024). Recovering the properties of aged bitumen using bio-rejuvenators derived from municipal wastes. Construction and Building Materials, 438, Article 137268. https://doi.org/10.1016/j.conbuildmat.2024.137268

Ageing of bitumen leads to significant performance deterioration of asphalt pavements and leads to material properties that are not conducive to recycling. Aiming to maximise the reusability of bitumen, this study investigated the feasibility of reju... Read More about Recovering the properties of aged bitumen using bio-rejuvenators derived from municipal wastes.

Characterisation of bitumen through multiple ageing-rejuvenation cycles (2024)
Journal Article
Hu, Y., Allanson, M., Sreeram, A., Ryan, J., Wang, H., Zhou, L., …Airey, G. D. (2024). Characterisation of bitumen through multiple ageing-rejuvenation cycles. International Journal of Pavement Engineering, 25(1), Article 2365350. https://doi.org/10.1080/10298436.2024.2365350

The multiple recycling of bitumen offers the possibility of reusing it for repeated lifecycles and achieve a higher degree of circularity of materials used in pavement construction. Aiming to identify the prospect, this study aged bitumen in a labora... Read More about Characterisation of bitumen through multiple ageing-rejuvenation cycles.

Use of Hansen Solubility Parameters (HSP) in the selection of highly effective rejuvenators for aged bitumen (2024)
Journal Article
Hu, Y., Sreeram, A., Xia, W., Wang, H., Zhou, L., Si, W., & Airey, G. D. (2024). Use of Hansen Solubility Parameters (HSP) in the selection of highly effective rejuvenators for aged bitumen. Road Materials and Pavement Design, https://doi.org/10.1080/14680629.2024.2357684

While there is considerable research regarding the recycling and reuse of aged bitumen in terms of the evaluation of rheological properties, there is not much fundamental understanding regarding the underlying mechanisms of the rejuvenation process.... Read More about Use of Hansen Solubility Parameters (HSP) in the selection of highly effective rejuvenators for aged bitumen.

Innovative Use of Polyurethane Precursor to Facilitate the Reaction-Rejuvenation of Aged SBS-Modified Asphalt (2024)
Journal Article
Hu, J., Jiang, X., Shen, W., Sreeram, A., Ren, H., & Xu, X. (2024). Innovative Use of Polyurethane Precursor to Facilitate the Reaction-Rejuvenation of Aged SBS-Modified Asphalt. Journal of Materials in Civil Engineering, 36(8), https://doi.org/10.1061/jmcee7.mteng-17491

The high-quality reutilization of waste styrene-butadiene-styrene (SBS) modified asphalt (SBSMA) mixtures has been a focus area for researchers in recent times. Commonly used rejuvenators are generally unsatisfactory to fully restore their overall pr... Read More about Innovative Use of Polyurethane Precursor to Facilitate the Reaction-Rejuvenation of Aged SBS-Modified Asphalt.

Optimising the dosage of bio-rejuvenators in asphalt recycling: A rejuvenation index based approach (2024)
Journal Article
Hu, Y., Ryan, J., Sreeram, A., Allanson, M., Pasandín, A. R., Zhou, L., …Airey, G. D. (2024). Optimising the dosage of bio-rejuvenators in asphalt recycling: A rejuvenation index based approach. Construction and Building Materials, 433, Article 136761. https://doi.org/10.1016/j.conbuildmat.2024.136761

While significant research efforts have been devoted to the rejuvenation of aged bitumen using bio-rejuvenators, a universally recognised approach for dosage optimisation is still yet to be established. Aiming to develop standardised methods to deter... Read More about Optimising the dosage of bio-rejuvenators in asphalt recycling: A rejuvenation index based approach.

Comparative analysis of time sweep testing evaluation methods for the fatigue characterisation of aged bitumen (2024)
Journal Article
Hu, Y., Sreeram, A., Airey, G., Li, B., Si, W., & Wang, H. (2024). Comparative analysis of time sweep testing evaluation methods for the fatigue characterisation of aged bitumen. Construction and Building Materials, 432, Article 136698. https://doi.org/10.1016/j.conbuildmat.2024.136698

Ageing of bitumen changes its stiffness related properties and is thought to have a considerable impact on its fatigue performance. Time sweep tests are a commonly used methodology to evaluate the fatigue performance of bitumen over the course of its... Read More about Comparative analysis of time sweep testing evaluation methods for the fatigue characterisation of aged bitumen.

Quantitative analysis of asphalt concrete’s tension-compression asymmetry effects on pavement response through 3D numerical modeling with dual viscoelastic model (2024)
Journal Article
Tan, Z., Leng, Z., Li, H., Ashish, P. K., Cai, X., Cao, P., & Sreeram, A. (2024). Quantitative analysis of asphalt concrete’s tension-compression asymmetry effects on pavement response through 3D numerical modeling with dual viscoelastic model. Construction and Building Materials, 430, Article 136427. https://doi.org/10.1016/j.conbuildmat.2024.136427

Asphalt concrete (AC) exhibits noticeable tension-compression (TC) asymmetry, but it is typically considered isotropic in pavement design. This study aims to quantitatively evaluate the effect of AC’s TC asymmetry on pavement response under loading t... Read More about Quantitative analysis of asphalt concrete’s tension-compression asymmetry effects on pavement response through 3D numerical modeling with dual viscoelastic model.

Deconvoluting the Mechanisms of Thermal Degradation and Oxidation during the Aging Simulation of Elastomeric Modified Asphalt Binders (2024)
Journal Article
Adwani, D., Sreeram, A., & Bhasin, A. (2024). Deconvoluting the Mechanisms of Thermal Degradation and Oxidation during the Aging Simulation of Elastomeric Modified Asphalt Binders. Journal of Materials in Civil Engineering, 36(7), https://doi.org/10.1061/jmcee7.mteng-17450

Developing new and efficient methods to simulate the aging of asphalt binders and mixtures continues to be an important area of research for the asphalt community around the world. Temperatures exceeding pavement service temperatures are typically us... Read More about Deconvoluting the Mechanisms of Thermal Degradation and Oxidation during the Aging Simulation of Elastomeric Modified Asphalt Binders.

Examining the efficacy of promising antioxidants to mitigate asphalt binder oxidation: insights from a worldwide interlaboratory investigation (2024)
Journal Article
Adwani, D., Pipintakos, G., Mirwald, J., Wang, Y., Hajj, R., Guo, M., Liang, M., Jing, R., Varveri, A., Zhang, Y., Pei, K., Xu, X., Leng, Z., Li, D., Villamil, W., Caro, S., Chailleux, E., Cantot, J., Weigel, S., Škulteckė, J., …Bhasin, A. (2024). Examining the efficacy of promising antioxidants to mitigate asphalt binder oxidation: insights from a worldwide interlaboratory investigation. International Journal of Pavement Engineering, 25(1), Article 2332363. https://doi.org/10.1080/10298436.2024.2332363

Oxidative aging induces significant stiffening of asphalt binders that leads to a pronounced reduction in the overall durability of asphalt pavements. The strategic implementation of antioxidant additives provides a potential solution to alleviate th... Read More about Examining the efficacy of promising antioxidants to mitigate asphalt binder oxidation: insights from a worldwide interlaboratory investigation.

Kinetics and toxicological potential of heavy metal leaching from asphalt pavements (2023)
Journal Article
Zou, F., Leng, Z., Tan, Z., Li, D., Han, M., Lu, G., & Sreeram, A. (2024). Kinetics and toxicological potential of heavy metal leaching from asphalt pavements. Science of the Total Environment, 912, Article 169193. https://doi.org/10.1016/j.scitotenv.2023.169193

The leaching of heavy metals from asphalt pavement has attracted increasing attention due to its associated environmental risks. Comprehending the leaching process is crucial for ensuring the safe utilization of asphalt pavement. This study investiga... Read More about Kinetics and toxicological potential of heavy metal leaching from asphalt pavements.