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 [...]
Road Surface Technology’s latest issue included a feature on Sripath’s product portfolio and its commitment to sustainability efforts in the paving industry. The article focused on how the innovative additive developer evaluates its resource and energy use while addressing performance concerns. For sustainability in asphalt to be impactful, contributors to the paving lifecycle need to back their [...]
TRANSCRIPT FROM VIDEO: When using Reclaimed Asphalt Pavement in mixes was first introduced, the common belief was that the only modification needed was to soften the binder before adding RAP to a mix. However, research has demonstrated that while viscosity is an important property to consider, additional functional characteristics need to be restored for the resulting roadway [...]