Road American
- This topic has 1 reply, 2 voices, and was last updated 8 months, 3 weeks ago by
.
Viewing 2 posts - 1 through 2 (of 2 total)
-
Posts
-
What technical requirements define crumb rubber modified asphalt for asphalt or bitumen modification?
Crumb rubber modified asphalt (CRMA) requires specific technical parameters for effective performance. Key requirements include the rubber particle size, typically between 0.5 mm and 2.0 mm, and a rubber content of 10-20% by weight of the binder. The mixing temperature should be around 180-200°C to ensure proper dispersion. Additionally, the binder’s viscosity and elasticity must be enhanced to improve resistance to deformation and cracking. Compliance with relevant standards, such as ASTM or AASHTO, is also essential for quality assurance.
Viewing 2 posts - 1 through 2 (of 2 total)
- You must be logged in to reply to this topic.