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Recycled asphalt pavement (RAP) can significantly reduce the cost of pavement construction by replacing virgin materials. Using RAP content between 40-50% would maximize these cost savings, but agencies have been hesitant to exceed 20% usage due to concerns over mix quality control and performance predictability. Recent research at NCAT found that mixes with 45-50% RAP content performed well, suggesting higher RAP ratios are viable if aggregate properties and binder blending are properly managed during prod
- Author
- Ala Thajil
- Language
- EN