Search results for " storage stability"

showing 3 items of 3 documents

The effect of prolonged storage time on asphalt rubber binder properties

2019

Abstract This study wants to provide fundamental understanding of prolonged storage time on asphalt rubber binder properties by performing an investigation on the variation of conventional properties, rheology and morphology of four asphalt rubbers maintained at 180 °C in low shear for different digestion/storage times up to 48 h. The analysed asphalt rubbers were manufactured by combining two different asphalt binder grades, pen 35/50 and pen 50/70, with both cryogenic and ambient crumb rubber. Results have shown that keeping asphalt rubber agitated at the above mentioned processing conditions, up to 48 h, is significantly detrimental when an ambient crumb rubber is used, while it seems no…

Materials science0211 other engineering and technologies02 engineering and technologyAsphalt rubberNatural rubberRheologyEngenharia e Tecnologia::Engenharia Civil021105 building & constructionDigestion timeGeneral Materials ScienceCrumb rubberComposite materialCivil and Structural EngineeringCrumb rubberScience & TechnologyBuilding and Construction021001 nanoscience & nanotechnologyAsphaltvisual_art:Engenharia Civil [Engenharia e Tecnologia]visual_art.visual_art_mediumStorage stabilityAsphalt rubber Digestion time Storage stability Rheology Scanning electron microscopy Crumb rubber0210 nano-technologyRheologyScanning electron microscopy
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Towards storage-stable high-content recycled tyre rubber modified bitumen

2018

The addition of crumb rubber particles as bitumen modifier can be currently considered as a well-established alternative to conventional polymers for bitumen modification. However, Recycle Tyre Rubber (RTR) modified binders still present drawbacks such as poor mix workability and hot storage stability. Within this study the authors try unlocking the full potential of devulcanised tyre rubber-heavy oils blend, named Liquid Rubber (LR), by exploring the possibility of tailoring recycled polymer modified bitumen with unconventional high-content of RTR and designed to overcome the above mentioned technological problems of RTR modified bitumen while keeping its advantages. Results show that LR-b…

chemistry.chemical_classificationPolymer modifiedMaterials science0211 other engineering and technologies02 engineering and technologyBuilding and ConstructionPolymer021001 nanoscience & nanotechnologyrecycled tyre rubber Liquid rubber bitumen modification storage stability asphalt rubber no-agitation wet processNatural rubberRheologychemistryAsphaltvisual_artLiquid rubber021105 building & constructionvisual_art.visual_art_mediumGeneral Materials ScienceCrumb rubberComposite materialSolubility0210 nano-technologyCivil and Structural EngineeringConstruction and Building Materials
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EFFECT OF PROCESSING TEMPERATURE VARIATION ON STORAGE STABILITY OF TIRE RUBBER MODIFIED BINDERS

2012

Tire Rubber Modified Binders (TR-MBs), produced through wet process and used worldwide (e.g. asphalt rubber), have been demonstrated to provide various benefits to pavements and, moreover, represent a good opportunity for recycling tire rubber. However, this technology is still struggling to be fully adopted in Europe, mainly because of the poor stability of TR-MBs during high temperature storage, which leads to high initial costs in modifying existing asphalt plants. No-agitation TR-MBs (also known as terminal blends) are proving to be a great option and their development could also be the key to spreading the use of tire rubber in paving applications in Europe. This paper aims to enrich t…

Tire rubber modified bitumen terminal blend storage stability DMASettore ICAR/04 - Strade Ferrovie Ed Aeroporti
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