Avaliação da Influência da Temperatura de Compactação no Desempenho de Misturas Asfálticas Quentes e Mornas a Partir de Análises Mecanicistas

In Brazil, the hot asphalt mix, better known as CA (Asphalt Concrete), is the most traditionally used in paving due to itsgood mechanical properties. The manufacture of the same by means of asphalt plants is considered a source ofenvironmental pollution when it is taken care of the excessive energy...

Full description

Bibliographic Details
Main Authors: Johann Külzer, Paola N., Pereira Rossato, Fabio, Spies, Tania B.
Format: Online
Language:Spanish
Published: +Ingenio - Journal of Science Technology and Innovation. 2024
Subjects:
Online Access:https://revistas.fio.unam.edu.ar/index.php/masingenio/article/view/149
Description
Summary:In Brazil, the hot asphalt mix, better known as CA (Asphalt Concrete), is the most traditionally used in paving due to itsgood mechanical properties. The manufacture of the same by means of asphalt plants is considered a source ofenvironmental pollution when it is taken care of the excessive energy consumption required to reach the temperaturedetermined in the design of both the aggregates and binder and the asphalt mixture in its final composition, productionof pollutants. However, warm mixtures arise, which has as main characteristic the reduction of the temperature ofmachining and compaction, with consequent reduction in the emission of pollutants and less impact in the scope areasof the enterprises. Therefore, the present work aimed to evaluate the influence of compaction temperature on the fatigueperformance of hot and warm asphalt mixtures, through mechanistic analyzes by SisPav Software and calculations, todetermine the performance of pavement fatigue. It was observed that even with the reduction of compactiontemperature the warm mixes obtained better results, and the hot mixtures presented a remarkable reduction of fatigueperformance when compacted at non-ideal temperatures, resulting in early cracking of the pavement.