Effects of warm-mix additives, anti stripping agent, and graphene nanoplatelet on the cracking resistance, moisture susceptibility, and cost effectiveness of stone mastic asphalt

IF 7.4 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Construction and Building Materials Pub Date : 2024-06-27 DOI:10.1016/j.conbuildmat.2024.137250

Md. Tanvir A. Sarkar, Mostafa A. Elseifi, Zahid Hossain

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Abstract

Moisture and cracking damages are two of the most common asphalt pavement distresses in the United States. The use of stone matrix asphalt mixture has gained popularity due to its high durability, resistance to permanent deformation and cracking, and reduced noise pollution. Warm-mix additives and nanomaterials have also gained significant interest as promising asphalt binder additives. In order to achieve enhanced resistance to moisture and cracking in extremely wet regions, this study investigated the effects of three warm-mix additives, an anti-stripping agent, and one nanomaterial (graphene nanoplatelet) on the cracking and moisture resistance performance of stone matrix asphalt. Fourier transform infrared spectroscopy and sessile drop tests were used to evaluate the functional groups and moisture susceptibility of the modified asphalt binder blends, respectively. The indirect tensile asphalt cracking test and the modified Lottman tests were used to evaluate the mixtures' resistance to cracking and stripping damage. A cost-effectiveness analysis as well as a two-dimensional performance interaction diagram were employed based on the laboratory performance of the mixtures. Results indicated that the graphene nanoplatelet modification of the asphalt binder had the highest wettability potential, adhesion, and debonding properties, as well as moisture resistance potential compared to other additives. In terms of mixture cracking performance, both the graphene nanoplatelet and a chemical warm-mix asphalt significantly improved the mix cracking performance by 34.1 and 30.0 %, respectively, compared to the control mix. However, the graphene nanoplatelet modification had a tensile strength ratio of 0.76, which is below the acceptance threshold of 0.80 set by AASHTO T 283 for moisture damage resistance of asphalt mixture. Overall, all mixtures with warm-mix additives showed adequate cracking and stripping damage resistance performance and are expected to be cost-effective.

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温拌添加剂、抗剥离剂和石墨烯纳米微粒对石子胶合沥青抗裂性、湿敏性和成本效益的影响

潮湿和开裂损坏是美国最常见的两种沥青路面问题。由于石基沥青混合料具有高耐久性、抗永久变形和开裂、减少噪音污染等优点，其使用已越来越普及。温拌添加剂和纳米材料作为有前途的沥青粘结剂添加剂也受到了广泛关注。为了在极端潮湿的地区提高抗潮和抗裂性能，本研究调查了三种温拌添加剂、一种抗剥落剂和一种纳米材料（石墨烯纳米板）对石基沥青抗裂和抗潮性能的影响。傅里叶变换红外光谱法和无梗滴试验分别用于评估改性沥青混合料的官能团和湿敏性。间接拉伸沥青开裂试验和改性洛特曼试验用于评估混合料的抗开裂和抗剥离破坏能力。根据混合料的实验室性能，采用了成本效益分析和二维性能交互图。结果表明，与其他添加剂相比，石墨烯纳米颗粒改性的沥青胶结料具有最高的润湿潜力、粘附性和脱粘性能，以及防潮潜力。在混合料开裂性能方面，与对照混合料相比，石墨烯纳米板和化学温拌沥青都能显著改善混合料的开裂性能，分别提高 34.1% 和 30.0%。不过，石墨烯纳米板改性后的抗拉强度比为 0.76，低于 AASHTO T 283 规定的沥青混合料抗湿害性能的接受临界值 0.80。总体而言，所有使用温拌添加剂的混合料都表现出足够的抗开裂和抗剥离破坏性能，预计具有成本效益。

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来源期刊

Construction and Building Materials 工程技术-材料科学：综合

CiteScore

13.80

自引率

21.60%

发文量

3632

审稿时长

82 days

期刊介绍： Construction and Building Materials offers an international platform for sharing innovative and original research and development in the realm of construction and building materials, along with their practical applications in new projects and repair practices. The journal publishes a diverse array of pioneering research and application papers, detailing laboratory investigations and, to a limited extent, numerical analyses or reports on full-scale projects. Multi-part papers are discouraged. Additionally, Construction and Building Materials features comprehensive case studies and insightful review articles that contribute to new insights in the field. Our focus is on papers related to construction materials, excluding those on structural engineering, geotechnics, and unbound highway layers. Covered materials and technologies encompass cement, concrete reinforcement, bricks and mortars, additives, corrosion technology, ceramics, timber, steel, polymers, glass fibers, recycled materials, bamboo, rammed earth, non-conventional building materials, bituminous materials, and applications in railway materials.