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Details van artikel 5 van 32 gevonden artikelen
| Titel: |
Caracterización fisicoquímica y morfológica de asfaltos modificados con material reciclado |
| Auteur: |
Ana Sofía Figueroa-Infante Elsa Beatriz Fonseca-Santanilla Fredy Alberto Reyes-Lizcano |
| Verschenen in: |
Ingeniería y Universidad |
| Paginering: | Jaargang 13 (2009) nr. 1 pagina's 45-70 |
| Jaar: |
2009 |
| Inhoud: |
For more than 30 years, modifiedasphalt obtained by adding elastomerand plastomer type polymershas been used in flexible pavements.However, the high cost of modifiershas prevented their use from becomingpopular; meanwhile no one has founda satisfactory method of final disposalfor large volumes of waste polymerthat has been generated by the indiscriminateuse of disposable products.This work will study the possibilityof obtaining an asphalt-polymer mix(using tire crumbs and icopor fromdisposable cups as modifiers), whichwould be stable, less expensive andhave better physical and chemicalproperties than conventional CIBasphalt from the industrial complexin Barrancabermeja (Colombia). Themodification of asphalt was conductedusing the asphalt disperser of the pavementslaboratory at the Universityof La Salle. Physicochemical analysiswas conducted in accordance withregulations and included penetration,ductility, softening point, flash point,point of combustion, aging, reologicalcurve, solubility and stability instorage. To establish the compositionand compatibility of the polymerasphaltmixtures, the separation wasperformed in four fractions of asphaltaccording to the specifications of theSARA method, while the morphologicaland micromorphological analysisof asphalt and asphalt binders wasperformed using stereoscopic sweepelectronic microscope. The resultsindicated that a stable and homogeneousasphalt – polymer mix waspossible; one which preserved the originalasphalt maltenes – asphaltenesrelationship and the physicochemicalcharacteristics which would predictan adequate performance when usedin asphalt paving mixtures. |
| Uitgever: |
Pontificia Universidad Javeriana (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 5 van 32 gevonden artikelen
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