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Practical lessons learnt from the application of x-ray computed tomography to evaluate the internal structure of asphalt mixtures

Alvarez-Lugo, Allex Eduardo and Carvajal-Munoz, Juan Sebastian (2014) Practical lessons learnt from the application of x-ray computed tomography to evaluate the internal structure of asphalt mixtures. Dyna; Vol. 81, núm. 188 (2014); 52-59 DYNA; Vol. 81, núm. 188 (2014); 52-59 2346-2183 0012-7353 .

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URL oficial: http://revistas.unal.edu.co/index.php/dyna/article...

Resumen

X-ray Computed Tomography (X-ray CT) has allowed for the efficient non-destructive characterization of the internal structure of paving asphalt mixtures (AM), and has led to multiple practical lessons learnt based on the analysis of laboratory- and field-produced AM. This paper aims at summarizing these practical lessons, to facilitate their future application and further developments, in terms of: (i) fabrication of laboratory specimens, (ii) comparison of laboratory- and field-compacted mixtures, (iii) comparison of hot-mix asphalt and warm-mix asphalt mixtures, (iv) effects of additives, temperature, and compaction, (v) stone-on-stone contact, (vi) relationship between internal structure and performance, and (vii) modeling applications. These practical lessons are primarily gathered from the analysis of the air void distribution of laboratory-and field-produced AM, evaluated through X-ray CT, which has led to relevant inputs for the assessment of the response and performance of AM. X-ray CT enables computation of the AM internal structure with multiple practical applications and future opportunities to enhance the microstructure of AM and, consequently, optimize their performance.

Tipo de documento:Artículo - Article
Información adicional:Derechos de autor reservados
Palabras clave:X-ray computed tomography, internal structure, air voids, asphalt mixture, pavements engineering.
Unidad administrativa:Revistas electrónicas UN > Dyna
Código ID:46758
Enviado por : Dirección Nacional de Bibliotecas STECNICO
Enviado el día :04 Febrero 2015 17:48
Ultima modificación:04 Febrero 2015 17:48
Ultima modificación:04 Febrero 2015 17:48
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