Shaikhah Dilshad, Oliviero Rossi Cesare, Luca Giuseppina De, Angelico Ruggero, Calandra Pietro, Caputo Paolino
Institute of Functional Surfaces, School of Mechanical Engineering, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, UK.
Scientific Research Center, Soran University, Erbil 44008, Kurdistan Region, Iraq.
Molecules. 2024 Aug 26;29(17):4038. doi: 10.3390/molecules29174038.
Bitumen, a vital component in road pavement construction, exhibits complex chemo-mechanical properties that necessitate thorough characterization for enhanced understanding and potential modifications. Nuclear Magnetic Resonance (NMR) spectroscopy emerges as a valuable technique for probing the structural and compositional features of bitumen. This review presents an in-depth exploration of the role of NMR spectroscopy in bitumen characterization, highlighting its diverse applications in determining bitumen content, group composition, molecular dynamics, and interaction with additives. Various NMR techniques, including free induction decay (FID), Carr-Purcell-Meilboom-Gill (CPMG), and Pulsed Field Gradient Stimulated Echo (PFGSE), are discussed in the context of their utility in bitumen analysis. Case studies, challenges, and limitations associated with NMR-based bitumen characterization are critically evaluated, offering insights into potential future research directions. Overall, this review provides a comprehensive overview of the current state-of-the-art in NMR-based bitumen characterization and identifies avenues for further advancement in the field.
沥青是道路路面施工中的重要组成部分,具有复杂的化学力学性质,需要进行全面表征,以加深理解并进行潜在的改性。核磁共振(NMR)光谱法是一种用于探究沥青结构和组成特征的宝贵技术。本文综述深入探讨了NMR光谱法在沥青表征中的作用,突出了其在测定沥青含量、族组成、分子动力学以及与添加剂相互作用等方面的多种应用。讨论了各种NMR技术,包括自由感应衰减(FID)、卡-普-梅-吉尔(CPMG)和脉冲场梯度刺激回波(PFGSE)在沥青分析中的实用性。对基于NMR的沥青表征相关的案例研究、挑战和局限性进行了批判性评估,为未来潜在的研究方向提供了见解。总体而言,本文综述全面概述了基于NMR的沥青表征的当前技术水平,并确定了该领域进一步发展的途径。