ASPHA MIN WARM ASPHALT MIXES A Division of

ASPHA – MIN WARM ASPHALT MIXES A Division of Eurovia

Eurovia / MHI Originators of Zeolite Warm Mix Technology

History 1995 1999 2001 2006 Development starts at MHI Earliest trial sites on public roads in Germany (Hesse and Thuringia) Start of an international corporation with EUROVIA; numerous sites in Europe and North America since then Start of the distribution company aspha-min Gmb. H, Hanau (Germany)

Product Info © 2007 aspha-min Gmb. H, Hanau (Germany). [aspha-min®]; synthetically manufactured zeolite (containing approx. 20 % water of crystallisation by mass) allowing the manufacture of warm mixed asphalt

Product Info • © 2007 aspha-min Gmb. H, Hanau (Germany). • • • Impact of aspha-min®: Added to the mix shortly before or at the same time as the binder at a rate of 0. 3% by mass, the zeolite starts to release water, creating a very fine water spray This controlled foaming effect leads to a slight increase of the binder volume The gradual release of the water provides the impact over a longer period of time (6 to 7 hrs. ) The effect lasts until the mix has cooled to (212° F) thus ensuring comfortable workability of the mix

© 2007 aspha-min Gmb. H, Hanau (Germany). Product Info • • • Benefits of aspha-min® in WMA: Compatible with all currently used types of binder Compatible with all currently used types of mix Compatible with the use of RAP No change to the ball-and-pen value Easy handling and dosing Stable storage when kept dry No additional storage facilities for pre-mixed binder No major modifications to the plant No prolongation of the mixing time

Over 300, 000 metric tons placed in Europe

Field Report Case study 1 Project: Principal: Contractor: Mixing Plant: Application: Types of mix: B 3, Schönstadt-Schwarzenborn – Germany, State of Hesse Hessisches Landesamt für Straßen- und Verkehrswesen Amt für Straßen- und Verkehrswesen, Marburg A. Bauer Gmb. H & Co. KG, Cölbe MHI Gmb. H, Homberg (Ohm) – 26 km to work site June 1999 Asphaltbinder 0/22 S (binder course) © 2007 aspha-min Gmb. H, Hanau (Germany). (3256 mt warm mixed; 991 mt hot mixed) Splittmastixasphalt 0/8 S (stone mastic asphalt) (1016 mt warm mixed; 387 mt hot mixed) Specifics: First major public trial site Measuring of energy savings at mixing plant Ambient temp. : 18° - 22° C (64° - 72° F) Application temp. : 126° - 142° C delivered on site (259° - 288° F) 105° - 130° C at the paver (221° - 266° F)

Field Report Case study 1 © 2007 aspha-min Gmb. H, Hanau (Germany). B 3, Schönstadt-Schwarzenborn (1999, during application) Two lanes separately paved with warm mix

Field Report Case study 1 © 2007 aspha-min Gmb. H, Hanau (Germany). B 3, Schönstadt-Schwarzenborn (1999, during application) Texture of the SMA

Field Report Case study 1 © 2007 aspha-min Gmb. H, Hanau (Germany). B 3, Schönstadt-Schwarzenborn (1999, during application) Surface after completion

Field Report Case study 1 © 2007 aspha-min Gmb. H, Hanau (Germany). B 3, Schönstadt-Schwarzenborn (energy savings - extract)

Field Report Case study 1 © 2007 aspha-min Gmb. H, Hanau (Germany). B 3, Schönstadt-Schwarzenborn (today)

Average Temperature Range 30°F - 61°F Annual Precipitation 35” Average Daily Traffic 8879 Trucks 1651 1999 2007

Field Report Case study 2 Project: Principal: Contractor: Mixing Plant: Application: Types of mix: L 3072, OU Mücke-Atzenhain – Germany, State of Hesse Hessisches Landesamt für Straßen- und Verkehrswesen Amt für Straßen- und Verkehrswesen, Schotten Bickhardt Bau AG, Kirchheim MHI Gmb. H, Homberg (Ohm) – 14 km to work site July – August 1999 Asphalttragschicht 0/32 (base course) © 2007 aspha-min Gmb. H, Hanau (Germany). (800 mt warm mixed; 3848 mt hot mixed) Asphaltbinder 0/16 (binder course) (547 mt warm mixed; 724 mt hot mixed) Asphaltbeton 0/11 (wearing course) (985 mt warm mixed; 571 mt hot mixed) Specifics: partly manual application Ambient temp. : 19° - 25° C (66° - 77° F) Application temp. : 135° - 145° C leaving plant (275° - 293° F)

Field Report Case study 2 © 2007 aspha-min Gmb. H, Hanau (Germany). L 3072, Mücke-Atzenhain (1999, during application) Warm mix attached to existing lane

Field Report Case study 2 © 2007 aspha-min Gmb. H, Hanau (Germany). L 3072, Mücke-Atzenhain (1999, during application) Hand work areas

Field Report Case study 2 © 2007 aspha-min Gmb. H, Hanau (Germany). L 3072, Mücke-Atzenhain (1999, during application) Connecting link-roads

Field Report Case study 2 © 2007 aspha-min Gmb. H, Hanau (Germany). L 3072, Mücke-Atzenhain (1999, during application) Surface after completion

Field Report Case study 2 © 2007 aspha-min Gmb. H, Hanau (Germany). L 3072, Mücke-Atzenhain (today)

Field Report Case study 2 © 2007 aspha-min Gmb. H, Hanau (Germany). L 3072, Mücke-Atzenhain (today)

Field Report Case study 2 © 2007 aspha-min Gmb. H, Hanau (Germany). L 3072, Mücke-Atzenhain (today)

Average Daily load: 3089 vehicles 181 heavy vehicles 1999 2007

Field Report Case study 3 Project: Principal: Contractor: Mixing Plant: Application: Types of mix: B 49, Flensungen-Ruppertenrod – Germany, State of Hesse Hessisches Landesamt für Straßen- und Verkehrswesen Amt für Straßen- und Verkehrswesen, Schotten Stutz Gmb. H & Co. KG MHI Gmb. H, Homberg (Ohm) – 23 km to work site November 1999 – June 2000 Asphalttragschicht 0/32 (base course) © 2007 aspha-min Gmb. H, Hanau (Germany). (2045 mt warm mixed; 2305 mt hot mixed) Asphaltbinder 0/16 (binder course) (640 mt warm mixed; 659 mt hot mixed) Splittmastixasphalt 0/11 (stone mastic asphalt) (865 mt warm mixed; 200 mt hot mixed) Specifics: base course contains 45% of RAP Ambient temp. : -1° - +3° C (30° - 37° F) Application temp. : 139° - 145° C delivered on site (282° - 293° F) 102° - 139° C at the paver (216° - 282° F)

Field Report Case study 3 © 2007 aspha-min Gmb. H, Hanau (Germany). B 49, Flensungen-Ruppertenrod (1999, during application) Warm mixed base course paved at ~ 0° C

Field Report Case study 3 © 2007 aspha-min Gmb. H, Hanau (Germany). B 49, Flensungen-Ruppertenrod (1999, during application) Warm mixed SMA paved at ~ 2° C!

Field Report Case study 3 © 2007 aspha-min Gmb. H, Hanau (Germany). B 49, Flensungen-Ruppertenrod (1999, during application) Heavy traffic allowed only single file paving

Field Report Case study 3 © 2007 aspha-min Gmb. H, Hanau (Germany). B 49, Flensungen-Ruppertenrod (1999, during application) Surface after completion

Field Report Case study 3 © 2007 aspha-min Gmb. H, Hanau (Germany). B 49, Flensungen-Ruppertenrod

Field Report Case study 3 © 2007 aspha-min Gmb. H, Hanau (Germany). B 49, Flensungen-Ruppertenrod (today)

Field Report Case study 3 © 2007 aspha-min Gmb. H, Hanau (Germany). B 49, Flensungen-Ruppertenrod (today)

Field Report Case study 3 © 2007 aspha-min Gmb. H, Hanau (Germany). B 49, Flensungen-Ruppertenrod (today)

Field Report Case study 3 © 2007 aspha-min Gmb. H, Hanau (Germany). B 49, Flensungen-Ruppertenrod (today)

Average Daily load: 4561 vehicles 294 heavy vehicles 2000 2007

Field Report Official rating © 2007 aspha-min Gmb. H, Hanau (Germany). Here: B 3, Schönstadt-Schwarzenborn Source: „Erfahrungssammlung über die Verwendung von Fertigprodukten und Zusätzen zur Temperaturabsenkung von Asphalt“; bast 08/2006

Field Report Product Info • © 2007 aspha-min Gmb. H, Hanau (Germany). • • • Extra benefits of aspha-min® in HMA: Easier compaction of high performance types of mix Easier compaction in manual application Easier compaction of thin layers Easier compaction when adding high portions of RAP Allows longer hauls Allows cold weather paving

Field Report Laying aspha-min® as compaction aid in hot mixed asphalt: (Germany: BAB A 31, AS Lembach – AS Gescher) Renfovia® with aspha-min® © 2007 aspha-min Gmb. H, Hanau (Germany). Field No. Renfovia® without aspha-min® 1 2 3 4 5 Roller 9 t V, S 12 t V, O 9 t V, S 9 t V, O 12 t V, O Pass 1 78, 9 77, 5 76, 6 79, 8 76, 7 Pass 2 92, 8 93, 4 91, 5 90, 2 Pass 3 97, 0 95, 1 97, 0 94, 5 Pass 4 97, 9 96, 3 97, 7 95, 9 94, 9 Pass 5 98, 3 98, 8 98, 4 96, 8 97, 9 Pass 6 - - - 97, 5 98, 3 2, 485 2, 465 Density by volume Legend: V = vibration; S = statically; O = oscillation Source: EUROVIA Services Gmb. H, MPA Bottrop –Dr. Ing. Christoph Dröge

Field Report Achievement 1997 © 2007 aspha-min Gmb. H, Hanau (Germany). 2001 2002 2005 Rewarded by the German Federal Ministry for the Environment „Prix de l‘Innovation Vinci“ (France) „Gefahrstoffschutz-Preis“ (Germany) „Certificat Innovation Autoroutière“ (France) „Prix Innovation de la FNTP“ (France) „Grand Prix de l‘Innovation du SMCL“ (France)

Warm Asphalt Demonstration Charlotte, NC September 2004

Plant Lake Norman • • • 250 TPH Parallel Drum Plant w/ Coater Production Rate For Test – 140 TPH Normal Mix temperature – 310 F Warm Mix Temperature – 265 F Injection of Aspha-min 2’ Into Dryer Percent of Reduction in Emissions: SO 2 – 17. 6%, NOx – 6. 1%, THC – 35. 3%

MIX PROPERTIES • • S 9. 5 C Mix was used with 10% RAP PG – 70 Liquid was used for both mixes Liquid Anti-Strip LOF 6500 @. 75% by wt. 92% quarried granite and 8% slag Minimum Compaction – 92% Actual Compaction – 92. 8% Conv. Mix Actual Compaction – 93. 4% Warm Mix

Paving Old Statesville Road Charlotte, NC • • • Placed mix with 2181 Blaw-Knox Paver Two Vibratory Rollers and 1 Rubber Tire Rolling Pattern was same for both mixes Matt Thickness – 1 1/2” to 2” Very little temperature loss from plant to job • Placed 160 tons of Warm Mix

Aspha-min Mix on Old Statesville with City and DOT Observers

Aspha-min Injector

HMA - 315° F Aspha-Min WMA - 265° F

Old Statesville Road 2007 • • Average Temperature Range 39°F - 79°F Annual Precipitation 43” Average daily traffic volume 27, 800 Posted speed 45 mph

Old Statesville Road 2007

• SR 417 Orlando, Florida • Feb. - March 2006

Open Graded Friction Course PG 76 -22 with. 4% fiber Design temp 320° F

274° F with aspha-min Where did the smoke go?

• • SR 417 Today Average temperature range 48°F - 92°F Days over 90°F – 107 annually Annual Precipitation – 48” Average daily traffic volume – 22, 750 Trucks 3, 200 65 mph

2006 Today

• 3 projects in 2005 – Rue Berri – Rue Ball – Rue De – Bleury 370 tons

ØRue De Bleury (Montréal) Nov. 2006

• 3 projects in 2006 – Autoroute 55 Sud (L’Avenir/Ulverton) – Rue Mc Gill – Rue des Sommets (Ile des Sœurs) 1000 tons

Field Report Contact © 2007 aspha-min Gmb. H, Hanau (Germany). aspha-min Gmb. H Lise Meitner-Str. 35 D-63457 Hanau Tel. : +49 6181 / 98 38 897 Fax: +49 6181 / 98 38 899 Mail: info@aspha-min. com Web: www. aspha-min. com www. hubbard. com