Effects of SARA fractions on low temperature properties of asphalt binders
TL;DR: In this article, the effects of the chemical fraction on the low temperature rheological behavior of asphalt binders were explored and four fractions, namely saturate, aromatic, resin and asphaltene (SARA), were investigated.
Abstract: Effects of the chemical fraction on the low temperature rheological behaviours of asphalt binders were explored in this study. Four fractions, namely saturate, aromatic, resin and asphaltene (SARA)...
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TL;DR: The use of reclaimed asphalt pavement (RAP) is believed to contribute significantly towards overall energy conservation and environmental protection efforts as mentioned in this paper, however, the recycling of aged binder f...
Abstract: The use of reclaimed asphalt pavement (RAP) is believed to contribute significantly towards overall energy conservation and environmental protection efforts. However, the recycling of aged binder f...
33 citations
32 citations
TL;DR: In this article, the authors developed a more comprehensive and straightforward method to distinguish asphalt aging degree, a potential new technique namely Spectrophotometry was introduced in order to develop a more straightforward method for quantitatively characterize the aging degree of asphalt.
27 citations
TL;DR: A review of the literature on asphaltene flow behavior in diverse mediums including waxy matrix, polymer matrix, oil/water emulsions, and so on is presented in this article .
27 citations
TL;DR: In this article, the coupling hazards and its mechanism of these environmental factors on bitumen were analyzed, showing that coupled conditions have much more serious negative impacts on the performance of bitumen.
25 citations
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TL;DR: A general picture of bitumen structure is shown to emerge and it shows that a simple solvation parameter allows quantifying the effect of the asphaltenes on the rheological properties ofbitumen.
1,236 citations
TL;DR: In this paper, the authors examined the literature dealing with the chemical composition of asphalt and changes in composition during environmental aging that affect durability-related properties, and the characterization of the chemical functional types gave a fundamental approach to the relationships between asphalt composition and asphalt properties.
Abstract: Publisher Summary This chapter examines the literature dealing with the chemical composition of asphalt and changes in composition during environmental aging that affect durability-related properties. The characterization of the chemical functional types gives a fundamental approach to the relationships between asphalt composition and asphalt properties, and the performance of asphalts and asphalt-aggregate mixtures. Differences in the quality of asphalts depend on their crude oil sources because different crude oils have different chemical compositions. A durable asphalt is defined as one that (a) possesses the physical properties necessary to produce the desired initial product performance properties, and (b) is resistant to changes in physical properties during long-term, in-service environmental aging. Durability is determined by the physical properties of the asphalt, which are determined directly by chemical composition.
310 citations
TL;DR: In this article, a new understanding about bitumen's colloidal behavior, related to its chemical composition, microscopic structure and rheological properties, is given, which is based on the ratio of the four main chemical components (asphaltenes, resins, aromatics, saturates).
304 citations
TL;DR: In this paper, the chemical and structural analyses of a series of petroleum resins are reported, which allow feasible representation to be made of the physical structure of bitumen and crude oils.
278 citations