Analysis of the Effects of Rubber Dosage and Digestion Time on the Mechanical Properties of Low Dosage Crumb-Rubber-Modified Asphalt Concrete Mixtures.

Summary: Adding old, ground-up tires to road paving is a great way to help the earth and make roads stronger. Scientists tested mixing small amounts of this tire rubber into asphalt. They tried adding 5%, 10%, and 15% rubber. They also tested mixing it for a short time versus a long time. They found that adding exactly 10% rubber works best! It makes the roads much better at stopping cracks and dents from heavy cars. Also, the mixing time didn't change how strong the road was. So, road builders can just pick the mixing time that is easiest and fastest for them.