Effect of Aging on Chemical Composition and Rheological Properties of Neat and Modified Bitumen

Kleizienė, Rita; Panasenkienė, Miglė; Vaitkus, Audrius

doi:10.3390/ma12244066

Cited by 27 publications

(16 citation statements)

References 47 publications

(66 reference statements)

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“…The binder was recovered according to the procedure described in EN 12697-3 [ 37 ] using toluene as solvent. The effect of ageing of bitumen can affect the bitumen spectra, and it can be evaluated through IR spectroscopy [ 38 , 39 , 40 ]. To take this into consideration, fresh bitumen directly from manufacturer, binder subjected to simulated short-term ageing (RTFOT) and binder recover from HMA were tested.…”

Section: Methodsmentioning

confidence: 99%

Evaluation of Laboratory Methods of Determination of SBS Content in Polymer-Modified Bitumens

Ratajczak

Wilmański

2020

Materials

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The article deals with the issue of determination of the content of SBS (Styrene-Butadiene-Styrene) in polymer-modified bitumens (PMBs). The effect of SBS copolymer on the physical and rheological properties of bitumens has been thoroughly investigated and widely described in the literature. Condition surveys of structures and evaluation of the properties of materials used at construction sites have become a huge challenge for construction engineering. Determination of the content of SBS modifier in various building materials (asphalt mixtures and bituminous waterproofing compounds) is a good example in this respect. Based on the laboratory tests, mid-infrared spectroscopy was found to be the most effective analytical method. It can be used for easy detection of the presence of SBS in a modified bitumen. However, quantitative analysis is an issue that calls for research. Currently, there are no standard guidelines, whether national or European, that would regulate the method of testing. Three test methods were assessed in this study: the AASHTO T302–15 standard method and two Australian methods described in codes of practice (T521 and Q350) developed by the local authorities, which define a standard way of determining the amount of SBS in polymer-modified bitumens. The tests were carried out on standard controls and samples sourced from the industry. The above-mentioned test methods were assessed in terms of accuracy of determination, reliability of results obtained on the industrial samples, level of complexity of the test procedure, sample preparation techniques and the type of the required reagents.

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Section: Methodsmentioning

confidence: 99%

Evaluation of Laboratory Methods of Determination of SBS Content in Polymer-Modified Bitumens

Ratajczak

Wilmański

2020

Materials

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“…The areas defined by the introduced baselines and the part of the spectrum were calculated using a specific software Origin. Each peak is attributed to a functional group remaining unaffected during service life, but also to groups responsible for aging or polymer presence [26,28]. When it comes to the groups responsible for TiO 2 , echoing [33][34][35] in the region below 1000 cm −1 , several peaks are ascribed to TiO 2 presence.…”

Section: Ftirmentioning

confidence: 99%

Section: Ftirmentioning

confidence: 99%

Physicochemical and Rheological Properties of a Transparent Asphalt Binder Modified with Nano-TiO2

et al. 2020

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Transparent binder is used to substitute conventional black asphalt binder and to provide light-colored pavements, whereas nano-TiO2 has the potential to promote photocatalytic and self-cleaning properties. Together, these materials provide multifunction effects and benefits when the pavement is submitted to high solar irradiation. This paper analyzes the physicochemical and rheological properties of a transparent binder modified with 0.5%, 3.0%, 6.0%, and 10.0% nano-TiO2 and compares it to the transparent base binder and conventional and polymer modified binders (PMB) without nano-TiO2. Their penetration, softening point, dynamic viscosity, master curve, black diagram, Linear Amplitude Sweep (LAS), Multiple Stress Creep Recovery (MSCR), and Fourier Transform Infrared Spectroscopy (FTIR) were obtained. The transparent binders (base and modified) seem to be workable considering their viscosity, and exhibited values between the conventional binder and PMB with respect to rutting resistance, penetration, and softening point. They showed similar behavior to the PMB, demonstrating signs of polymer modification. The addition of TiO2 seemed to reduce fatigue life, except for the 0.5% content. Nevertheless, its addition in high contents increased the rutting resistance. The TiO2 modification seems to have little effect on the chemical functional indices. The best percentage of TiO2 was 0.5%, with respect to fatigue, and 10.0% with respect to permanent deformation.

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“…Chemical characterization of binders has received attention in the literature as it can present functional groups related to the crude oil origin, the polymer modification, and the degree of oxidation [30][31][32][33][34][35]. Since this paper aims to analyze the chemical characteristics of the transparent binder modified with nano-TiO2, three approaches were carried out: i) identification of FTIR peaks; ii) establishment of a possible relationship between the TiO2 modification level and related chemical groups; and iii) comparison of standard indices with reference binders used in this study.…”

Section: Ftirmentioning

confidence: 99%

“…The areas defined by the introduced baselines and the part of the spectrum were calculated using a specific software Origin. Each peak is attributed to a functional group remaining unaffected during service life, but also to groups responsible for aging or polymer presence [30,32]. When it comes to the groups responsible for TiO2, echoing [37][38][39] in the region below 1000 cm -1 , several peaks are ascribed to TiO2 presence.…”

mentioning

confidence: 99%

Physicochemical and Rheological Properties of A Transparent Asphalt Binder Modified with Nano-TiO2

Segundo¹,

Landi²,

Margaritis³

et al. 2020

Preprint

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Transparent binder is used to substitute conventional black asphalt binder and to provide light-colored pavements, whereas nano-TiO2 has the potential to promote photocatalytic and self-cleaning properties. Together, these materials provide multifunction effects and benefits when the pavement is submitted to high solar irradiation. This paper analyses the physicochemical and rheological properties of a transparent binder modified with 0.5%, 3.0%, 6.0%, and 10.0% of nano-TiO2 and compares it to the transparent base binder, and conventional and polymer modified binders (PMB) without nano-TiO2. Their penetration, softening point, dynamic viscosity, master curve, black diagram, Linear Amplitude Sweep (LAS), Multiple Stress Creep Recovery (MSCR), and Fourier-Transform Infrared Spectroscopy (FTIR) were obtained. The transparent binders (base and modified) seem to be workable considering their viscosity and exhibited values between the conventional binder and PMB regarding rutting resistance, penetration, and softening point. They showed similar behavior as the PMB, demonstrating signs of polymer-modification. The addition of TiO2 seems to reduce fatigue life, except for the 0.5% content. Nevertheless, its addition in high contents increases the rutting resistance. The TiO2 modification seems to have little effect on the chemical functional indices. The best percentage of TiO2 was 0.5%, considering fatigue and 10.0% concerning permanent deformation.

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Effect of Aging on Chemical Composition and Rheological Properties of Neat and Modified Bitumen

Cited by 27 publications

References 47 publications

Evaluation of Laboratory Methods of Determination of SBS Content in Polymer-Modified Bitumens

Evaluation of Laboratory Methods of Determination of SBS Content in Polymer-Modified Bitumens

Physicochemical and Rheological Properties of a Transparent Asphalt Binder Modified with Nano-TiO2

Physicochemical and Rheological Properties of A Transparent Asphalt Binder Modified with Nano-TiO2

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