| Polymer blending |
 |
 |
 |
 The processes by which the polymer is incorporated into the asphalt binder are extremely important. Years of experience and research have shown that identical concentrations of polymer modifier can yield modified asphalts with differing properties. These differences are due to the nature by which the modifier is dispersed within the asphalt, as well as the compatibility of the asphalt binder with the polymer modifier. Following the incorporation of SHRP testing procedures and the PG grading system, polymer modified asphalts have gained popularity among state agencies prescribing performance graded products. Ecopath equipment is designed with state specifications in mind; as such, PMA produced using Ecopath blending units is designed to meet SHRP PG graded binder requirements. ECOPATH blending technology utilizes the Modified Asphalt Contactor™ reactor for the mixing tank. The higher effective blending and heating capabilities will allow milling to be accomplished in a single pass, eliminating the need for multiple passes. This will result in significant energy savings due to the large motor of the mill (typically 200-300 HP), which would otherwise be operated for three to six times longer. This also would result in reduced processing time. The major difference between ECOPATH and its competitors is that we offer not just the equipment but a complete technology transfer. Our in-house engineering group consists of highly qualified chemical, civil and mechanical engineers, providing an ideal combination of all related disciplines to ensure optimum equipment, process and road construction design. We believe your modified binder should be uniquely designed by considering: • Market prices and availability of raw materials in your country/region • Climate • Your country’s existing paving material standards. • Traffic loading Our solutions are always economically and technically optimized based on the above mentioned criteria. Our engineering support can include engineering/economical calculations to obtain realistic numbers on return of investment (ROI) and other economically important numbers (considering given country/region material, labor prices, market needs, tax rules, etc). ECOPATH also has the expertise to draft complete paving material specifications for different countries or regions, where a given modified binder standard does not yet exist. |
| Last Updated ( Tuesday, 03 November 2009 03:17 ) |
