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RISLow-Temperature and Fatigue Properties of Asphalt Binders Modified with Crumb Rubber from Discarded Tires and Recycled Low-Density Polyethylene
Publisher: ASCE
Abstract: The addition of virgin polymers to asphalt binders is a technique widely used in the asphalt paving industry, because this approach helps improve the performance and extends the longevity of asphalt pavements. In recent ...
Diffusion Study Using Fine-Aggregate Matrices Comprised of Reclaimed Asphalt Pavements and a Bio-Based Recycling Agent
Publisher: ASCE
Abstract: The use of reclaimed asphalt pavements (RAP) is an increasing trend nowadays due to environmental and economical appeal. The use of higher percentages of RAP might result on cracking issues associated with the performance ...
Simplifications of the Short-Term USAT Protocol for Neat and Modified Binders: A Rheological Assessment
Publisher: American Society of Civil Engineers
Abstract: This study evaluates the feasibility of proposed simplifications of the universal simple aging test (USAT) to simulate the short-term aging of asphalt binders (STUSAT). Rutting and fatigue parameters of four neat and four ...
Effect of Soy-Based Asphalt Rejuvenators on Asphalt Binders of Different Performance Grades
Publisher: ASCE
Abstract: The objective of this study was to evaluate the effect of three soy-based biorejuvenators and one conventional petroleum-based oil on aged asphalt binders. Two neat asphalt binders (PG 64-22 and PG 70-16) were aged in a ...