Search results for "Degree of blending"

showing 3 items of 3 documents

Quantitative assessment of the parameters linked to the blending between reclaimed asphalt binder and recycling agent: A literature review

2020

Abstract The lack of understanding the mechanisms governing the interaction between reclaimed asphalt binder (RAb) 1 and recycling agents is one of the technical issues that still need to be resolved when high amount of reclaimed asphalt (RA) 2 is used in a new recycled asphalt mixture (RAM). Due to important role of RAb in that interaction and increased used of RA, it becomes necessary to have a way to classify RA, as any other material used in asphalt mixture production. It is very important to determine how much RAb is active by itself (DoA) 3 , but also to determine how much RAb can be considered available for a mix design of RAM (DoAv) 4 when a recycling agent is used. Finally, since t…

Computer science0211 other engineering and technologies020101 civil engineering02 engineering and technologyMix designReclaimed asphalt pavement12. Responsible consumption0201 civil engineeringAsphalt pavementWarm mix asphalt021105 building & constructionQuantitative assessmentDegree of binder activityGeneral Materials ScienceProcess engineeringDegree of binder availabilityDegree of blendingCivil and Structural EngineeringDegree of binder activity; Degree of binder availability; Degree of blending; Hot mix asphalt; Reclaimed asphalt pavement; Recycled asphalt mixture; Warm mix asphaltRecycled asphalt mixturebusiness.industryBuilding and ConstructionHot mix asphaltAsphaltbusiness
researchProduct

Design considerations of high RAP-content asphalt produced at reduced temperatures

2018

In many countries recycling of reclaimed asphalt pavement (RAP) for road surface layers is limited to a maximum of 10–30%. This is due to technical limitation of common asphalt plant but also to specifications that are still restrictive when it comes to increasing RAP in surface courses. The mistrust in this practice is mainly related to uncertainty in performance of these mixes as well as to existing fundamental issues with the mix design, especially when production temperatures are lowered. This paper analyses some of the factors affecting the design of warm asphalt mixtures for surface course layers containing 50% RAP, and suggests a framework to justify the common assumption of full ble…

Degree of blending (DoB)ImaginationReclaimed asphalt pavement (RAP)Materials sciencemedia_common.quotation_subject0211 other engineering and technologiesMix design02 engineering and technology010501 environmental sciences01 natural sciencesMix designAsphalt pavementWarm mix asphalt021105 building & constructionUltimate tensile strengthSettore ICAR/04 - Strade Ferrovie Ed AeroportiGeneral Materials ScienceStatistical analysisComposite material0105 earth and related environmental sciencesCivil and Structural Engineeringmedia_commonBuilding and ConstructionFull blendingMechanics of MaterialsAsphaltRoad surfaceReclaimed asphalt pavement (RAP) Degree of blending (DoB) Full blending Mix design Warm mix asphaltSolid mechanicsFull blending Mix designMaterials and Structures
researchProduct

On the degree of binder activity of reclaimed asphalt and degree of blending with recycling agents

2020

It is common practice to assume full blending of the aged binder of reclaimed asphalt (RA) within the design of new asphalt mixtures. Although being practical, this assumption has often led designers to asphalt mixtures lacking binder. Hence, going towards recycled asphalt mixtures (RAM) there is a need to have a better understanding of the blending phenomena, to have a general agreement on terminology and finally adapting RA classification and mix design procedures accordingly. This manuscript aims at being both a reference and stimulus for the scientific community to work in this direction and on this basis provides a nomenclature and a theoretical framework of the blending phenomena. The…

recycling agent050210 logistics & transportationdegree of blendingWaste managementdegree of activity05 social sciences0211 other engineering and technologies02 engineering and technologyrecycling agent blending phenomenablending phenomena; degree of activity; degree of availability; degree of blending; recycled asphalt; recycling agentblending phenomenaDegree (temperature)degree of availabilityAsphaltrecycled asphalt021105 building & construction0502 economics and businessCivil and Structural EngineeringMathematics
researchProduct