Effect in the high modulus asphalt concrete with the temperature

• 25% of thickness reduction in the base layer with HMAC compared with conventional bitumen at 20 °C.
• 15% of thickness reduction in the base layer with HMAC compared with conventional bitumen at 0 °C.
• 0% of thickness reduction in the base layer with HMAC compared with conventional bitumen at −20 °C.
• This study shows a clear disadvantage of using HMAC compared with conventional bitumen in cold weathers and a clear advantage of using HMAC in warm weathers.

The use of the high modulus asphalt concrete in the base course of airport pavements is not of recent utilization, but at present there is a considerable gap in the regulation for the use of this bitumen. The main objective of this paper is to present the results of the research that has been done using the experimental dynamic modulus of different mixtures of conventional bitumen with different penetration index B40/50, B60/70, B100/150, B150/200 and the high modulus bitumen B13/22 to calculate the percentage of reduction in thickness of the base course in airport pavements when is used High Modulus Asphalt Concrete (HMAC) compare with conventional bitumen mixtures and is also taken into account the temperature. In order to obtain the reduction in thickness depending on the temperature and the use of HMAC, the tests have been performed at the different temperatures −20 °C, −10 °C, 0 °C, 10 °C, 20 °C and all the results in this paper are presented for these temperatures.To perform the calculations of this research the Airbus A380 has been taken as Aircraft Design.