Environmentally Friendly, Cost Effective Pelletized Asphalt Rubber Binder Modifiers for Hot Mix
PelletPAVE™ is a high performance, engineered binder enhancer made of a unique blend of premium quality asphalt cement, crumb rubber made from recycled waste tires and other special additives. These materials are blended in a proprietary process into a pelletized form for easy and economical storage, transportation and use. It is used as a substitute for SBS polymers to modify a base bitumen to provide increased high temperature rut resistance and reduce cracking in extreme low temperatures. This convenient, all-in-one solution is excellent for remote area paving where typical modified binders are too costly, or not available at all.
The PelletPAVE formula starts with "wet process" blended and reacted asphalt rubber, as defined by ASTM D6114. Then in the pelletizing process, depending on the application, various additives are added creating binders that have shown repeatedly to outperform other more expensive modified binders.
Improved mix properties include:
The PelletPAVE pelletization process creates a pre-manufactured matrix of asphalt and modifiers with an outer shell coating to keep the pellets in a free-flowing form that is transported and stored at ambient temperature, thus saving enormous amounts of energy normally required to keep the asphalt as a molten liquid. This energy savings also greatly reduces CO2 emissions.
At the time of use, the proportional amount of the PelletPAVE additive is mixed, either through a RAP collar of a continuous drum plant or directly into the mixer of a batch plant where it is blended with the base oil (e.g., PG 64 -22) and heated aggregate to produce a rubber modified hot mix asphalt.