ACW28 is a type of asphalt concrete mix commonly used in road construction. Its resilient modulus is a measure of its stiffness and ability to withstand repeated loading and deformation. It is important to study the impact of long-term oven aging on ACW28's resilient modulus because it can affect the performance and durability of roads over time.
The specific duration of long-term oven aging can vary depending on the research study, but it typically ranges from 3 to 6 months. This time frame allows for significant changes in the material's properties to occur, which can help researchers better understand its long-term behavior.
Long-term oven aging can cause a decrease in the resilient modulus of ACW28 due to the breakdown of asphalt binder and other components. This can result in increased cracking, rutting, and other forms of distress in roads, leading to higher maintenance and repair costs.
In this study, the resilient modulus of ACW28 is measured using a dynamic modulus test, which involves subjecting the material to repeated loading and measuring its resulting deformation. This test is commonly used in pavement research to assess the stiffness and strength of materials.
The study's findings can provide valuable insights for road construction and maintenance practices. They can help engineers and contractors make informed decisions about the selection and design of asphalt concrete mixes and the appropriate aging conditions for these materials. This can ultimately lead to more durable and cost-effective roads for the long term.