Effects of short-term ageing scenarios on asphalt mixtures’ fracture properties using imaging technique and response surface method

Omranian, Seyed Reza; Hamzah, Meor Othman; Yee, Teh Sek; Hasan, Mohd Rosli Mohd

doi:10.1080/10298436.2018.1546007

Cited by 14 publications

(9 citation statements)

References 22 publications

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“…The closer the contour is to the ellipse, the stronger the interaction between the two factors. 35,36 It can be seen from the comparison between Fig. 6a and f that the response surface of Fig.…”

Section: Single Factor Test Results (1) Effect Of Selecting Different...mentioning

confidence: 93%

Optimized HPLC extraction method of quercetin and berberine based on response surface analysis

Li,

Cheng,

et al. 2023

RSC Adv.

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Section: Single Factor Test Results (1) Effect Of Selecting Different...mentioning

confidence: 93%

Optimized HPLC extraction method of quercetin and berberine based on response surface analysis

Li,

Cheng,

et al. 2023

RSC Adv.

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“…The steeper the surface and the denser the contour are, the more significant the effect is. The closer the contour line is to the ellipse, the stronger the interaction between the two factors is [ 30 , 36 ]. According to Figure 3 a,c,e, the interaction between β-CD and agar was greater than the interaction between β-CD and Arabic gum, which was stronger than the interaction between Arabic gum and agar.…”

Section: Resultsmentioning

confidence: 99%

“…The response surface methodology is an established and reasonable technology for the identification of the optimal process condition using a multivariate quadratic equation fitting the experimental factors and results [ 30 ]. The control level is usually determined in the previous single-factor conditional experiment.…”

Section: Methodsmentioning

confidence: 99%

Reducing the Flocculation of Milk Tea Using Different Stabilizers to Regulate Tea Proteins

Song

Wang

Luo³

et al. 2023

Foods

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The regulation of flocs derived from polyphenol–protein formation in milk tea has not been fully explored. In this study, the flocculation of milk tea was regulated by adding 10 kinds of stabilizers with different characteristics. The stability coefficient and centrifugal precipitation rate were used as indexes. The optimal concentration ratio of the complex stabilizer was identified using the response surface methodology (RSM), being 0.04% for Arabic gum, 0.02% for β-cyclodextrin and 0.03% for Agar. Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD) and scanning electron microscopy (SEM) were used to analyze the characteristics of different stabilizers in milk tea, and our findings were as follows: (1) The relative strength of the peaks in different stable systems was different. The absorption peaks were mainly near the wave numbers 3376 cm−1, 2928 cm−1, 1655 cm−1, 1542 cm−1, 1408 cm−1, 1047 cm−1 and 925 cm−1. (2) The milk tea system was an amorphous structure. The diffraction peak of the composite system was observed to be about 20°. The crystallinity of the milk tea in the compound group was 33.16%, which was higher than that of the blank group (9.67%). (3) The compound stabilizer reduced flocculation, and the stabilizing agents improved the surface order of milk tea. These results indicate that the combination of polysaccharide stabilizers (Arabic gum and agar) and oligosaccharide stabilizers (β-CD) in certain proportions can regulate the flocculation of milk tea and improve its stability. The potential research avenues involving polyphenol–protein complex instability systems and their applications in food development are expanded by this work.

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“…Response surface methodology (RSM) is a statistical approach that has been employed in various fields of science engineering [22,[40][41][42][43][44][45][46][47][48][49] with different purposes. This study seeks to 239 employ an RSM concept as follows: 240 1.…”

Section: Design Of Experiments: Response Surface Methodology (Rsm) 236 237mentioning

confidence: 99%

Asphalt Binder Laboratory Short-Term Aging: Effective Parameters and New Protocol for Testing

Haghshenas

Rea²,

Byre³

et al. 2020

J. Mater. Civ. Eng.

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Rolling thin film oven (RTFO) is widely used to simulate asphalt binder short-term aging. However, there is a general interest to improve the current short-term aging protocol especially for reducing the aging time. Besides, there are some doubts about the capability of RTFO in the simulation of aging of highly polymer modified asphalt binders which is mainly due to improper dispersion of such binders in the bottles during rotating and creeping of highly viscous binder out of the bottles during rotation. This work addresses the effect of time, temperature, airflow rate, and weight of asphalt binder on the laboratory short-term aging of asphalt binders and proposes an alternative protocol that can reduce the aging time and resolve some of the current short-term aging protocol shortcomings. In the first part of this study, two asphalt binders, from different sources, were examined in RTFO at different combinations of the above-mentioned test parameters. The high-end continuous performance grading temperature (estimated by dynamic shear rheometer), and carbonyl index (estimated by Fourier transform infrared spectroscopy) were considered as the two responses for quantification and qualification of laboratory aging. The statistical analysis showed that the first order terms of time, temperature, and weight as well as their interactive terms were statistically significant. However, the effect of airflow rate, within the studied range, was insignificant. Based on the findings of the first part of study, an alternative protocol was proposed for the study of short-term aging in a RTFO. One unmodified and three highly modified binders were aged in a RTFO under the current and proposed aging conditions for comparative purposes. According to the obtained rheological (high-and low-end continuous performance grading temperature and viscosity) properties as well as the chemical characteristics (carbonyl index, saturate-aromatic-resin-asphaltene fractions, and oxygen content), it was shown that the proposed laboratory short-term aging protocol not only can reduce the aging time of the conventional protocol, but also that it is applicable to both neat and polymer-modified modern asphalt binders.

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Effects of short-term ageing scenarios on asphalt mixtures’ fracture properties using imaging technique and response surface method

Cited by 14 publications

References 22 publications

Optimized HPLC extraction method of quercetin and berberine based on response surface analysis

Optimized HPLC extraction method of quercetin and berberine based on response surface analysis

Reducing the Flocculation of Milk Tea Using Different Stabilizers to Regulate Tea Proteins

Asphalt Binder Laboratory Short-Term Aging: Effective Parameters and New Protocol for Testing

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