Search results for "bituminous materials"

showing 5 items of 5 documents

Recommendation of RILEM TC237-SIB on cohesion test of recycled asphalt

2018

This recommendation describes how to evaluate the presence of potentially active bitumen in recycled asphalt (RA) materials through the cohesion test. The experimental protocol is designed according to the research performed by the RILEM Technical Committee 237-SIB ‘‘Testing and characterization of sustainable innovative bituminous materials and systems’’ with the purpose, to develop a new, simple and fast method for the characterization of RA while limiting the need for conventional rheological tests. The guidelines in this recommendation focus on the testing procedure including specimen preparation, data analysis and provide information on the preparation of a tests report.

Computer science0211 other engineering and technologiesRecycled asphalt02 engineering and technologyReclaimed Asphalt (RA)Construction engineering021105 building & construction0502 economics and businessRecycled asphalt cohesion testingSettore ICAR/04 - Strade Ferrovie Ed AeroportiGeneral Materials ScienceTechnical committeeCivil and Structural EngineeringProtocol (science)050210 logistics & transportation05 social sciencesBuilding and ConstructionLimitingBituminous materialstestingTest (assessment)cohesionMechanics of MaterialsAsphaltRound Robin Test (RRT)Cohesion (chemistry)Specimen preparationFragmentation Test
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New simplified approach for obtaining a reliable plateau value in fatigue analysis of bituminous materials

2017

The Plateau Value (PV) based on the Ratio of Dissipated Energy Change (RDEC) approach has been proven to provide a unique relationship with the fatigue life, N-f, independent of loading mode, temperature and frequency. In this paper, a new simplified approach is proposed to compute the unique energy parameter PV. The results of this study show that applying the proposed method allows a unique fatigue power law to be produced and eliminates the ambiguity and variability in calculating PV. However, the study also shows that the PV-N-f fatigue curves for bituminous materials are dependent on material type which is contradictory to other studies dealing with PV. The study also highlights the im…

EngineeringMaterial typebusiness.industry0211 other engineering and technologiesGeneral EngineeringMode (statistics)Value (computer science)020101 civil engineering02 engineering and technologyStructural engineeringDissipationPlateau (mathematics)Bituminous materialsPower lawFatigue rubberised bitumen0201 civil engineering021105 building & constructionGeneral Materials SciencePoint (geometry)business
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Recommendation of RILEM TC237-SIB: protocol for characterization of recycled asphalt (RA) materials for pavement applications

2018

This recommendation proposes an experimental protocol to characterize Recycled Asphalt (RA) materials. The guidelines presented in this document are based on the results of a Round Robin Test (RRT) organized by the RILEM Technical Committee 237-SIB “Testing and characterization of sustainable innovative bituminous materials and systems” and provide information on the testing procedure, data analysis and indications for the preparation of a test report.

Engineeringrecycled aphalt0211 other engineering and technologies02 engineering and technologyConstruction engineeringTest reportTesting Protocol021105 building & construction0502 economics and businessSettore ICAR/04 - Strade Ferrovie Ed AeroportiGeneral Materials ScienceTechnical committeeCivil and Structural EngineeringProtocol (science)050210 logistics & transportationbusiness.industryroad pavement recycled aphalt testing05 social sciencesBuilding and ConstructionBituminous materialstestingCharacterization (materials science)Mechanics of MaterialsAsphaltroad pavementRound Robin Test (RRT)Round robin testbusinessRecycled Asphalt (RA)
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Recommendation of RILEM TC237-SIB on fragmentation test for recycled asphalt

2019

This recommendation describes how to characterize the reclaimed asphalt through the fragmentation test. The guidelines given hereafter are based on the results of a round robin test organized by the RILEM Technical Committee 237-SIB ‘‘Testing and characterization of sustainable innovative bituminous materials and systems’’ and provide information on the testing procedure, data analysis and indications for the preparation of a test report.

Reclaimed asphalt (RA)Round robin test (RRT)Computer science0211 other engineering and technologies02 engineering and technologyBuilding and ConstructionBituminous materialsFragmentation testCivil engineeringTest (assessment)Market fragmentationTest reportMechanics of MaterialsAsphalt021105 building & constructionFragmentation test; Reclaimed asphalt (RA); Round robin test (RRT)General Materials ScienceTechnical committeeRound robin testCivil and Structural Engineering
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Toward more realistic viscosity measurements of tyre rubber–bitumen blends

2014

AbstractThe measurement of rheological properties of the tyre rubber bitumen blends is often challenging due to presence of suspended tyre rubber’s crumbs. Furthermore, the phase separation during the course of measurements makes the viscosity of these non-homogeneous blends difficult to ascertain. In this study, a new dual helical impeller was designed and manufactured to be used with a rotational viscometer in order to have a real-time control of the viscosity while performing a laboratory mixing of the blends. Layer based manufacturing techniques showed to be a convenient method to produce complex shaped impeller prototypes before manufacturing the more expensive stainless steel assembly…

Recycled tyre rubberEngineeringbituminous materials Calibration Electric discharges Impellers Manufacture Rapid prototyping Rate constants Real time control Rubber Stainless steel Tires Viscometers Viscosity Viscosity measurementViscometryMixing (process engineering)ViscosityImpellerMaterials Science(all)Natural rubberRheologyElectrical discharge machiningSettore ICAR/04 - Strade Ferrovie Ed AeroportiGeneral Materials ScienceComposite materialCivil and Structural EngineeringComplex fluidRapid prototypingbusiness.industryViscometerBuilding and ConstructionDual helical impellerShear rateRubberised bitumenvisual_artvisual_art.visual_art_mediumSettore ICAR/08 - Scienza Delle CostruzionibusinessConstruction and Building Materials
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