AdveraAdvera®® WMA WMA ZeoliteZeolite

WMA Technical Working WMA Technical Working GroupGroup

December 12, 2007December 12, 2007Annette SmithAnnette SmithPQ CorporationPQ Corporation

OverviewOverview AdveraAdvera®® WMA WMA

What is it?What is it? Who manufactures and markets?Who manufactures and markets? How does it work?How does it work? Features and BenefitsFeatures and Benefits DemonstrationsDemonstrations

What is Advera WMA?What is Advera WMA?

Synthetic ZeoliteSynthetic Zeolite Hydrated AluminosilicateHydrated Aluminosilicate Contains 18-21% water Contains 18-21% water Standard size and quality for Standard size and quality for

consistency.consistency. Environmentally and Worker FriendlyEnvironmentally and Worker Friendly

HMIS/NFPA Code 1, 0, 0HMIS/NFPA Code 1, 0, 0 GRASGRAS

Manufacturing of Advera Manufacturing of Advera WMAWMA

Manufactured and Marketed in North Manufactured and Marketed in North America by America by PQ CorporationPQ Corporation

176 Year old Global Company with 176 Year old Global Company with Corporate headquarters in Malvern, PA.Corporate headquarters in Malvern, PA.

World leader in silicate, zeolite and World leader in silicate, zeolite and other high performance inorganic other high performance inorganic chemicalschemicals

Manufacture Zeolite in three plants in Manufacture Zeolite in three plants in the USA. Jeffersonville, IN; Augusta, the USA. Jeffersonville, IN; Augusta, GA; and Kansas City, KSGA; and Kansas City, KS

Advera WMA Advera WMA How does it work?How does it work?

Upon heating above 100 C, water will Upon heating above 100 C, water will be emitted from the zeolite structure be emitted from the zeolite structure causing micro-foaming in the asphalt causing micro-foaming in the asphalt concrete.concrete. Controlled foaming - No visual change in Controlled foaming - No visual change in

the asphalt concrete the asphalt concrete No mix design changes are requiredNo mix design changes are required

Improves Workability, and thus Improves Workability, and thus compaction for overall improvement in compaction for overall improvement in density.density.

Advera WMA Advera WMA How does it work?How does it work?

H2

O

H2

OH2

O

H2

OH2

OH2O

Time Release of WaterTime Release of Water

•DSC/TGA test run by Texas A&M

Advera WMAAdvera WMA

Added to Asphalt Concrete at a rate Added to Asphalt Concrete at a rate of 0.25% by weight of the mix. (5 of 0.25% by weight of the mix. (5 lbs/ton)lbs/ton)

AvailableAvailable in Bulk Bags, Bulk Trucks, in Bulk Bags, Bulk Trucks, or Railor Rail

Torque vs. Temperature

10

12

14

16

18

20

22

24

26

150 200 250 300 350

Temperature (F)

To

rqu

e (L

ow

est

Wo

rkin

g)

HMA Control

Advera WMA

Advera WMA Advera WMA How is it introduced?How is it introduced?

Drum plants, through a fiber port. Drum plants, through a fiber port.

Advera WMAAdvera WMA Bulk Bag

Unloader Silo

Advera WMA Advera WMA Features & BenefitsFeatures & Benefits

Better Workability of the Asphalt Mix Better Workability of the Asphalt Mix AllowsAllows

Longer Haul TimesLonger Haul Times Extension of the Paving Season Extension of the Paving Season Easier Handling of Stiff Mixes such Easier Handling of Stiff Mixes such

as Polymer Modified, Rubber as Polymer Modified, Rubber Asphalt Binder and high RAP Asphalt Binder and high RAP Content.Content.

Advera WMA Advera WMA Features & BenefitsFeatures & Benefits

Reduction in Production Temperatures Reduction in Production Temperatures Reduces EmissionsReduces Emissions Reduce Blue Smoke complaintsReduce Blue Smoke complaints Reduce Recordable EmissionsReduce Recordable Emissions Increase in the tonnage through the plant.Increase in the tonnage through the plant.

Reduction in Production Temperatures Reduction in Production Temperatures Reduces Energy ConsumptionReduces Energy Consumption Depending on mix it may be possible to Depending on mix it may be possible to

save up to 30% on energy costs.save up to 30% on energy costs.

Advera WMA Advera WMA Features & BenefitsFeatures & Benefits

Reduction in Temperature at the PaverReduction in Temperature at the Paver Reduction in Fumes for the Paving CrewReduction in Fumes for the Paving Crew Reduction of Heat on already hot days.Reduction of Heat on already hot days.

AdveraAdvera® WMA WMA2007 Demonstrations2007 Demonstrations

California - HVS Test SiteCalifornia - HVS Test Site – 150 tons– 150 tons Colorado - Eisenhower Tunnel – 1,200 Colorado - Eisenhower Tunnel – 1,200

tonstons - Commercial – 2,000 tons- Commercial – 2,000 tons

Tennessee – Hillsboro Pike -1,200 tonsTennessee – Hillsboro Pike -1,200 tons Vermont – City Street – 450 TonsVermont – City Street – 450 Tons Wisconsin – Miller Park – 4,500 tonsWisconsin – Miller Park – 4,500 tons Wyoming - Yellowstone NP Entrance Wyoming - Yellowstone NP Entrance

Rd – 9,000 TonsRd – 9,000 Tons

Questions?Questions?