Paved roadways have been around since ancient Babylonian civilizations began blending asphalt with gravel to accommodate travelers and merchants. In more modern times, roads constructed from asphalt, or bitumen, appeared in the late 1700s as chemists started to better understand the binding qualities of natural asphalt in surface performance. Fast forward to today, and the Earth is [...]
TRANSCRIPT FROM VIDEO: The Illinois Tollway used Sripath’s asphalt rejuvenator, ReLIXER, to test the performance of a high-traffic roadway prone to extreme weather conditions. The goal was to incorporate a minimum of 40% Reclaimed Asphalt Pavement in their balanced mix design while achieving key performance specifications. When evaluating sample performance, Illinois Tollway used several different tests. The [...]
With the current changes in bitumen quality stemming from global sourcing and decreased focus on bitumen production by suppliers, engineers are looking for novel approaches to achieve performance requirements in asphalt mixes without relying on producers to meet specifications. This has led to the development of a balanced mix design in asphalt, which helps engineers formulate mixes that [...]
TRANSCRIPT FROM VIDEO: As Reclaimed Asphalt Pavement becomes more commonplace in roadway development, standards are high for rejuvenators. To evaluate the efficacy of a particular recycling agent, multiple factors must be considered. Effective asphalt rejuvenators should restore the properties of aged bitumen, aiding with functional characteristics such as properties, compaction, stiffness, and durability. To best use a [...]