Validering av �lderssamband f�r asfaltbel�ggningar (SBUF)
项目名称:
Validering av �lderssamband f�r asfaltbel�ggningar (SBUF)
摘要:
The project aims to investigate and validate the existing relationship for age correction when testing the stiffness modulus and stability (dynamic creep test) of asphalt pavements. Age correction in the current Transport Administration Specifications are based on conventional asphalt pavements. In recent years the use of additives in the bitumen (polymers) has increased why the control and validation of the age correction to the predetermined time (usually 30 days) is necessary. The project includes study of cores from laboratory prepared test plates from ABB with and without polymer modified bitumen. Drilled cores from the test plates shall be taken after various times for investigation of stiffness modulus at + 10 � C and creep testing at + 40 � C.