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Advera ® WMA Zeolite WMA Technical Working Group December 12, 2007 Annette Smith PQ Corporation

Advera ® WMA Zeolite WMA Technical Working Group December 12, 2007 Annette Smith PQ Corporation. Advera ® WMA What is it? Who manufactures and markets? How does it work? Features and Benefits Demonstrations. Overview. What is Advera WMA?. Synthetic Zeolite Hydrated Aluminosilicate

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Advera ® WMA Zeolite WMA Technical Working Group December 12, 2007 Annette Smith PQ Corporation

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  1. Advera® WMA ZeoliteWMA Technical Working GroupDecember 12, 2007Annette SmithPQ Corporation

  2. Advera® WMA What is it? Who manufactures and markets? How does it work? Features and Benefits Demonstrations Overview

  3. What is Advera WMA? • Synthetic Zeolite • Hydrated Aluminosilicate • Contains 18-21% water • Standard size and quality for consistency. • Environmentally and Worker Friendly • HMIS/NFPA Code 1, 0, 0 • GRAS

  4. Manufacturing of Advera WMA • Manufactured and Marketed in North America by PQ Corporation • 176 Year old Global Company with Corporate headquarters in Malvern, PA. • World leader in silicate, zeolite and other high performance inorganic chemicals • Manufacture Zeolite in three plants in the USA. Jeffersonville, IN; Augusta, GA; and Kansas City, KS

  5. Advera WMA How does it work? • Upon heating above 100 C, water will be emitted from the zeolite structure causing micro-foaming in the asphalt concrete. • Controlled foaming - No visual change in the asphalt concrete • No mix design changes are required • Improves Workability, and thus compaction for overall improvement in density.

  6. H2O H2O H2O H2O H2O H2O Advera WMA How does it work?

  7. Time Release of Water • DSC/TGA test run by Texas A&M

  8. Advera WMA • Added to Asphalt Concrete at a rate of 0.25% by weight of the mix. (5 lbs/ton) • Availablein Bulk Bags, Bulk Trucks, or Rail

  9. Advera WMA How is it introduced? • Drum plants, through a fiber port.

  10. Advera WMA • Bulk Bag Unloader • Silo

  11. Advera WMA Features & Benefits Better Workability of the Asphalt Mix Allows • Longer Haul Times • Extension of the Paving Season • Easier Handling of Stiff Mixes such as Polymer Modified, Rubber Asphalt Binder and high RAP Content.

  12. Advera WMA Features & Benefits • Reduction in Production Temperatures Reduces Emissions • Reduce Blue Smoke complaints • Reduce Recordable Emissions • Increase in the tonnage through the plant. • Reduction in Production Temperatures Reduces Energy Consumption • Depending on mix it may be possible to save up to 30% on energy costs.

  13. Advera WMA Features & Benefits • Reduction in Temperature at the Paver • Reduction in Fumes for the Paving Crew • Reduction of Heat on already hot days.

  14. Advera® WMA2007 Demonstrations • California - HVS Test Site – 150 tons • Colorado - Eisenhower Tunnel – 1,200 tons - Commercial – 2,000 tons • Tennessee – Hillsboro Pike -1,200 tons • Vermont – City Street – 450 Tons • Wisconsin – Miller Park – 4,500 tons • Wyoming - Yellowstone NP Entrance Rd – 9,000 Tons

  15. Questions?

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