Journal ArticleDOI
Performance Evaluation of SBS Modified Asphalt with Different Anti-aging Additives
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TLDR
In this paper, the effects of three different types of anti-aging additives (bumetrizole, octabenzone, and tinuvin770) on the physical and rheological properties of styrene butadiene styrene (SBS) modified asphalt were investigated by means of conventional physical properties tests and dynamic shear rheometer (DSR) tests.Abstract:
The effects of three different types of anti-aging additives (bumetrizole, octabenzone, and tinuvin770) on the physical and rheological properties of styrene butadiene styrene (SBS) modified asphalt were investigated by means of conventional physical properties tests and dynamic shear rheometer (DSR) tests. In order to evaluate the aging properties of different anti-aging additive/SBS modified asphalts, the thin film oven test and ultraviolet (UV) radiation test were performed, and different aging parameters were compared. The results show that the penetration, ductility, and softening point are increased, whereas the viscosity is decreased, with the addition of different anti-aging additives. The DSR analysis indicates that anti-aging additives can enhance the elastic behavior and improve the thermal stability of SBS modified asphalt. Improvement in the thermal-oxidative aging properties of SBS modified asphalt can be achieved with the three different anti-aging additives, but the UV aging properties of anti-aging additive/SBS modified asphalts are dependent on the type of anti-aging additive. Of the three different anti-aging additives, tinuvin770 improves both the thermal- and the photo-oxidative aging resistance of SBS modified asphalt significantly.read more
Citations
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Journal ArticleDOI
High-temperature, low-temperature and weathering aging performance of lignin modified asphalt binders
K.B. Batista,R.P.L. Padilha,T.O. Castro,C.F.S.C. Silva,Maria de Fátima Amazonas de Sá Araujo,Leni Figueiredo Mathias Leite,Vânya M. D. Pasa,Vanessa de Freitas Cunha Lins +7 more
TL;DR: In this paper, the physical and chemical properties of lignin modified asphalt binders aiming to apply Lignin obtained as a subproduct of the pulp and paper industry in asphaltic pavements were analyzed.
Journal ArticleDOI
Synthesis and characterization of layered double hydroxides intercalated by UV absorbents and their application in improving UV aging resistance of bitumen
TL;DR: In this article, two different types of UV absorbents, 2-hydroxybenzoic acid and 2hydroxy-4-methoxybenzophenone-5-sulfonic acid, were intercalated into layered double hydroxides (LDHs) to synthesize organic LDH by anion-exchange method, and then the synthesized organic LD Hs were applied to modify bitumen aiming to improve UV aging resistance of bitumen.
Journal ArticleDOI
Performance evaluation of bitumen modified with pyrolysis carbon black made from waste tyres
TL;DR: In this article, two types of pyrolysis carbon blacks (PCBs) made from waste tyres were selected to modify road bitumens (SK70# and SK90#) via melt blending.
Journal ArticleDOI
Performance evaluation and preventive measures for aging of different bitumens
TL;DR: In this paper, three different bitumens (denoted as A, B and C) were exposed to thermal and ultraviolet (UV) aging at different UV intensities and various anti-aging additives were used to modify the bitumen via melt blending.
Journal ArticleDOI
Synergetic effect of multi-dimensional nanomaterials for anti-aging properties of SBS modified bitumen
TL;DR: In this paper, the performance degradation of SBS modified bitumen was investigated using Fourier transform infrared (FTIR) spectroscopy test results, which showed that the addition of multi-dimensional nanomaterials remarkably prevent carbonyl formation in SBS-modified bitumen in the process of RTFOT, UV and PAV aging.
References
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Journal ArticleDOI
Polymer modified asphalt binders
TL;DR: A review of research that has been conducted on polymer modified binders over the last three decades can be found in this paper, where the elastic recovery test is good at determining the presence of polymers in an asphalt binder but is less successful at predicting field performance of the pavement.
Journal ArticleDOI
Rheological properties of styrene butadiene styrene polymer modified road bitumens
TL;DR: In this paper, the authors describe the polymer modification of two penetration grade bitumens with SBS and show that the degree of SBS modification is a function of bitumen source, bitumen polymer compatibility and polymer concentration, with the higher polymer concentrations in a high aromatic content bitumen producing a highly elastic network which increases the viscosity, complex modulus and elastic response of the PMB.
Book ChapterDOI
Standard Test Method for Softening Point of Bitumen (Ring-and-Ball Apparatus)
Journal ArticleDOI
Effect of the thermal degradation of SBS copolymers during the ageing of modified asphalts
TL;DR: The change in the properties of the styrene-butadiene block copolymers (SBS) modified asphalt under different ageing conditions has been studied in this paper, where normalized test and rotational viscosities show the effect of the degradation and the modification of the polymer-asphalt interactions with the severity of the ageing.