Research on Low Temperature Performance of Emulsified Asphalt Cold Recycled Mixture and Improvement Measures Based on Fracture Energy

Zhang, Jiupeng; Zheng, Min; Pei, Jianzhong; Li, Rui

doi:10.3390/ma13143176

Cited by 24 publications

(9 citation statements)

References 24 publications

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“…Numerous studies have explored the effects of different inhibitor concentrations on mild steel corrosion rates in acidic solutions. For instance, a study by Fang [ 51 ] investigated the performance of various organic corrosion inhibitors in 1M HCl solution, including imidazole, benzotriazole, and 2‐mercaptobenzothiazole, revealing that higher inhibitor concentrations generally led to lower corrosion rates, albeit with optimal concentrations varying by inhibitor type. Similarly, studies like Mousa and Al‐Mobarak [ 52 ] and Olasunkanmi [ 53 ] have delved into the impact of different concentrations of inhibitors on mild steel corrosion rates in acid solutions, demonstrating the complexity of the relationship between inhibitor concentration and corrosion rate reduction, which depends on factors like inhibitor type, concentration, and solution conditions.…”

Section: Resultsmentioning

confidence: 99%

A combined experimental and theoretical study of a novel corrosion inhibitor derived from thiophen

Resen,

Jasim,

Qasim

et al. 2023

Carbon Neutralization

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In this study, we synthesized a novel corrosion inhibitor derived from thiophene and conducted a comprehensive evaluation of its inhibitory properties through both experimental and theoretical approaches. Our investigation encompassed experimental assessments employing Mass loss tests and electrochemical techniques. Additionally, we performed computational studies to delve into the electronic structure and bonding characteristics of the inhibitor, aiming to elucidate its inhibitory mechanism. Our findings revealed that the synthesized inhibitor displayed remarkable inhibitory efficiency, demonstrating its effectiveness in preventing the corrosion of mild steel. Specifically, the thiophene derivative exhibited an impressive inhibitory efficiency of 92.8%, underscoring its potential as a robust corrosion inhibitor for mild steel. Furthermore, this study delved into optimizing the conditions for employing the thiophene derivative as a corrosion inhibitor. Our investigation revealed that the most effective inhibition was achieved at a concentration of 0.5 mM and a temperature of 303 K. To elucidate the interaction between the inhibitor and the mild steel surface, we applied the Langmuir adsorption isotherm concept, shedding light on both the physical and chemical adsorption processes of the thiophene derivative on the metal's surface. Our investigations demonstrated that the addition of the inhibitor significantly reduced the corrosion rate of the metal. Our computational results further reinforced these experimental findings, indicating that the inhibitor formed stable adsorption complexes on the metal surface. This dual confirmation from experimental and computational approaches strengthens the confidence in the inhibitor's efficacy in mitigating corrosion.

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Section: Resultsmentioning

confidence: 99%

A combined experimental and theoretical study of a novel corrosion inhibitor derived from thiophen

Resen,

Jasim,

Qasim

et al. 2023

Carbon Neutralization

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show abstract

“…The number of transverse cracks and the total width are not enough to explain the influence of the asphalt pavement base layer on transverse shrinkage cracking [28][29][30]. Therefore, the transverse shrinkage cracking was analyzed by calculating the mean cracking distance and averaged cracking width.…”

Section: Characteristics Of Transverse Shrinkage Crackingmentioning

confidence: 99%

Effect of Asphalt Pavement Base Layers on Transverse Shrinkage Cracking Characteristics

et al. 2023

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Transverse shrinkage cracking is considered to be one of the main factors leading to the degradation of sustainable service performance for asphalt pavement, but the effect of base layers on it is rarely studied. To investigate the effect of asphalt pavement base layers on transverse shrinkage cracking characteristics, this study analyzed and evaluated it through the test section data. The transverse shrinkage cracking test section data of four different asphalt pavement base layers were compared, and the variation characteristics of transverse shrinkage cracking under the influence of the base layer types and temperature were analyzed. Based on the conventional characteristics, the concept and calculation method of cracking area ratio (CAR) was proposed, and its rationality and accuracy were proved by calculation. It has been found that the CAR can reflect the longitudinal shrinkage performance of asphalt pavement. The shrinkage rate of a semi-rigid base is larger, while the shrinkage performance of a flexible base is better, and the shrinkage performance of the whole pavement is not affected by a small amount of cement. The research provides a practical basis for improving the anti-cracking performance of asphalt pavement and helps to enhance its sustainable service performance.

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“…CRM is a kind of green low-carbon, energy-saving, and environmental protection renewable material. Due to the higher utilization rate of old materials, lower energy consumption, and environmental pollution, CRM has been widely used in the reconstruction and expansion of asphalt pavement in China in recent years [ 1 , 2 , 3 , 4 ]. Nevertheless, the cold weather in the north of China will have a negative influence on the application of CRM.…”

Section: Introductionmentioning

confidence: 99%

“…In the Chinese asphalt pavement construction technical specification, the maximum bending tensile strain of low-temperature bending specimens is used as the evaluation index of low-temperature performance for asphalt mixtures, and good engineering application effects have been achieved. However, considering the characteristics of high void ratio, poor uniformity, and cohesiveness of CRM, the surface particles of the bending specimen prepared are loose and easy to fall off, and there is a common phenomenon of missing corners around, so the bending tensile strain test results have a great variability [ 4 , 11 ]. If the low-temperature bending test is used to evaluate the low-temperature performance of CRM, it will lead to inaccurate evaluation results and affect the engineering application effect [ 11 , 26 ].…”

Section: Introductionmentioning

confidence: 99%

Study on Low-Temperature Index and Improvement Measures of Emulsified Asphalt Cold Recycled Mixture

Han

et al. 2022

Materials

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With the promotion of cold recycled mixture (CRM) in cold areas and the improvement of its application layer, the enhancement of the low-temperature performance of mixtures is particularly important. The applicability of the current low-temperature bending test method to CRM is controversial. Firstly, the low-temperature crack resistance of CRM with different gradations and emulsified asphalt contents was studied by the indirect tensile (IDT) test and the semi-circular bending (SCB) test. Thereafter, the low-temperature performance evaluation index suitable for CRM was put forward. Then, the low-temperature performance of CRM with different gradations, fiber types, and contents was evaluated by using the above low-temperature evaluation index. The results show that the low-temperature performance of CRM with different gradations and emulsified asphalt contents can be distinguished by fracture work (W) and fracture energy (Gf). Not only do the test results have little variability (about 12% and 15%, respectively), but also the correlation coefficient with the new asphalt film thickness is the highest (0.8595 and 0.8939, respectively). Compared with coarse gradation (AC-25) and fine gradation (AC-13), medium-gradation (AC-20) CRM has higher low-temperature performance, and polyester fiber can significantly improve the low-temperature performance of CRM. Compared with non-fiber, the W and Gf of CRM of polyester fiber (0.3% content) can be increased by at least 42% and 30%, respectively.

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Research on Low Temperature Performance of Emulsified Asphalt Cold Recycled Mixture and Improvement Measures Based on Fracture Energy

Cited by 24 publications

References 24 publications

A combined experimental and theoretical study of a novel corrosion inhibitor derived from thiophen

A combined experimental and theoretical study of a novel corrosion inhibitor derived from thiophen

Effect of Asphalt Pavement Base Layers on Transverse Shrinkage Cracking Characteristics

Study on Low-Temperature Index and Improvement Measures of Emulsified Asphalt Cold Recycled Mixture

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