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How to determine the rutting of bitumen?

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To determine the rutting of bitumen, various methods and models have been developed. One approach involves evaluating the correlation between rutting susceptibility of bitumen and asphalt mixtures prepared using the same bitumen, utilizing tests like multiple stress creep and recovery, Superpave rutting parameter G*/sinδ, and flow number tests . Additionally, the use of polymer-modified binders, such as EVA-18 and EVA-28, in high modulus asphalt mixes has shown promising results in improving rut resistance, as indicated by rheological tests and mix rut depth measurements . Furthermore, the development of AI-based prediction models using computer vision techniques has enabled accurate identification of rutting on asphalt pavement roads, aiding in periodic pavement surveys . These methods collectively contribute to assessing and addressing the issue of rutting in bitumen and asphalt pavements.

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Open access•Journal Article•DOI Predict of Asphalt Rutting Potential Based on IDT and Validation with ANN Hassan Divandari 01 Dec 2019-Journal of Applied Engineering Sciences 2 Citations	The rutting of bitumen can be determined by developing a mathematical model using IDT test results and Marshall Parameters, validated with ANN for predicting specimen rut depth accurately.
Journal Article•DOI Determination of rutting performance of asphalt pavements considering realistic tire-pavement contact area Danial Moazami, Ratnasamy Muniandy - Show less +1 more 01 Nov 2021-International journal of pavement research and technology 2 Citations	To determine rutting of bitumen, consider realistic tire-pavement contact area using Rotary Compactor and Wheel Tracker equipment, revealing significant underestimation of contact stress and reduced pavement operational life.
Book Chapter•DOI Rutting Characterisation of EVA Modified Bitumen for High Modulus Asphalt Mixes (HiMA) 01 Jan 2022	Rutting of bitumen can be determined through temperature and frequency oscillation, MSCR tests, and measuring mix rut depth using a wheel tracker, as discussed in the research paper.
Open access•Journal Article•DOI Image processing-based automatic detection of asphalt pavement rutting using a novel metaheuristic optimized machine learning approach Minh-Tu Cao, Kuan-Tsung Chang, Ngoc-Mai Nguyen, Van-Duc Tran, Xuan-Linh Tran, Nhat-Duc Hoang - Show less +5 more 03 Aug 2021 21 Citations	The rutting of bitumen can be determined using a novel AI-based model combining image processing, LSSVC, feature selection, and FBI metaheuristic optimization for accurate recognition.
Journal Article•DOI Correlation Between Rheological Rutting Tests on Bitumen and Asphalt Mix Flow Number Muhammad Aakif Ishaq, Loretta Venturini, Filippo Giustozzi - Show less +2 more 16 Aug 2021-International journal of pavement research and technology 6 Citations	Rutting of bitumen can be determined by evaluating parameters like percentage of recovery (%R), non-recoverable compliance (Jnr) through MSCR test, and G*/sinδ through frequency sweep tests.

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What are the factors that contribute to rutting in asphalt with Kenpave?5 answersRutting in asphalt pavement is influenced by several factors. The primary influencing factors include the internal composition characteristics of the asphalt mixture, environmental conditions, and human factors. Other factors that affect the anti-rutting performance of asphalt pavement include temperature, wheel load, asphalt dosage, air-void, and fine aggregate. The mixtures' structural type also plays a significant role in rutting resistance, with temperature and asphalt dosage having a similar and greater influence. Additionally, the binder grade, binder content, aggregate gradation, air voids, traffic loading, and temperature are factors that contribute to rutting in asphalt mixes. The presence of a flexible or semi-rigid base can also impact asphalt pavement rut. Overall, these factors need to be considered in the design and construction of asphalt pavements to mitigate rutting issues.

What are the best methods for measuring the characteristics and components of asphalt?5 answersThe best methods for measuring the characteristics and components of asphalt include: - Using mathematical statistical methods to quantify and analyze the conventional indexes of different batches and sources of petroleum asphalt, allowing for quick and effective comparison and analysis of the comprehensive performance of different asphalts. - Utilizing a system that includes a load frame and a test fixture, where the load frame applies a load to the asphalt sample and a load cell measures the applied load, generating corresponding load electrical signals. - Employing an asphalt identification examination method that measures the position characteristics of infrared absorption intensity of specific chemical components in asphalt, compares the infrared spectrum of the asphalt to be measured with the infrared spectrum of standard asphalt in a standard spectrum database, and compares the position and peak value height similarity of the specific components in the two infrared spectrums. - Directing light from a light source to the surface of the asphalt, detecting the reflected or refracted light using a light detector, and assigning a number indicating the quality of the asphalt based on the detected light. - Using molecular simulation methods to explore the micromechanical and thermodynamic properties of asphalt, collecting molecules to simulate fresh asphalt and generating molecules to simulate aged asphalt binders, establishing asphalt models and aging models, and comparing the simulated results to test results.

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