ASPHALT STONE is sourced from Ordovician Dolomitic Limestone and manufactured to customer specified physical properties and sizes. It contains minimal fines and deleterious material. Pattison’s quarries yield an exceptional quality extremely hard material that helps to extend the life expectancy of roads. It has superior friction factor, reduces cracks, freeze/thaw impacts, and lowers maintenance costs.
approved by IADOT, MODOT, and MNDOT
It produces the finest aggregates from one of the oldest and
most competent limestone ledges in all of Iowa.
product of years of design, development, innovation, and
the diligent efforts of some of the finest engineers in the
aggregate production industry.
directly into our aggregate production plant. Small aggregates
are loaded from the stock pile to rail car by our state-of-the-art
direct transfer system.
Asphalt Stone - Ordovician Dolomitic Limestone
Asphalt Stone
Asphalt Stone can be washed or dry screened. It is also known as asphalt stone, asphalt aggregate, asphalt chips (1/4″, 3/8″, 5/8″, 3/4″), asphalt rock, and type A asphalt material. Pattison produces this incredibly hard stone from superior quality Ordovician Dolomitic Limestone ledges with our state-of-the-art, jaw/cone crushing plant. Our plant features compression crushing technology that reduces fines generation and increases fractured faces.
Asphalt Stone Certifications
Pattison’s Asphalt Stone is certified for use in Department of Transportation interstate and highways, asphaltic concrete, blacktop, hot mix asphalt roads, chip overlays, ultra thin overlays, and chip seal roads.
Exceptional Quality Source Material
This material is produced to specific physical property specifications. Pattison’s quarries feature a variety of Ordovician Dolomitic Limestone ledges that yield materials that meet our customer’s individual requirements. Asphalt Stone is sourced from durable ledges that have minimal deleterious material inclusion. This material outperforms materials from non-Ordovician quarries on freeze thaw, abrasion, specific gravity and absorption tests. It’s low absorption properties make it the ideal asphalt aggregate as it reduces the mount of petroleum oil required. See what wikipedia has to say.
Asphalt Stone Production
Pattison asphalt stone is of exceptional quality, and is approved by the Departments of Transportation in Iowa, Missouri, and Minnesota. It is the optimal choice aggregate for asphalt material projects.
With our direct to rail transfer system, Pattison products move quickly from production to rail loading. This reduces reduces product degradation and handling costs.
More about Ordovician Dolomitic Limestone
When it comes to rock, age really matters. Ordovician Dolomitic Limestone is some of the highest quality, hardest and most durable anywhere in Iowa. Ordovocian formations are only found in the northeast portion of Iowa. Pattison’s Clayton, IA quarry site is right in the middle of it.
Asphalt Aggregate Certifications
| Certifications | Sizes | Tech Size | Material Type |
|---|---|---|---|
| IADOT Type A Type A (chips) Type A (fine mix) IADOT #38 | 3/8" chips fine slurry mix Microsurfacing | 3/8"x1/8" 1/4" minus 3/8” x #50 | Dolomitic Limestone |
| MNDOT Class B Gradation A Gradation B Gradation C Gradation D PASSRC PASB | 1/2" minus 1/4" minus 1" minus 3/8" minus 5/8" x #4 1 1/2" x #4 | 1/2" 1/4" 1" 3/8" 5/8" x #4 1 1/2" #4 | Dolomitic Limestone |
| MODOT Chip Seal Agg. Grade A1 Grade A2 Grade B1 Grade B2 Grade C Bituminous Surface | 1/2" x #4 1/4" x #8 1/2 x #4 1/4 x #8 1/2" x #4 3/4" x #8 | 1/2" x #4 1/4" x #8 1/2" x #4 1/4" x #8 1/2" x #4 3/4" x #8 | Dolomitic Limestone |
Asphalt Aggregate Properties
| Property | Value |
|---|---|
| Absorption | 1 to 2.25% |
| Abrasion | 26% to 31% |
| Insoluble Residue | 1.53% to 4.29% |
| Shale | 0% |
State of the art Aggregate Plant
Pattison’s newly installed Cone Crusher and production plant is state-of-the-art, producing some of the highest quality Ordovician Dolomitic Limestone Asphalt Stone.
Material is separated into various required sizes without inducing fractures, while yielding a refined individual rack shape that is the most desirable for tight compaction and stability. Pattison’s new aggregate plant produces Asphalt Stone of exceptional quality.
Logistics second to none
Pattison recently completed its Rail Spur project, extending multiple rail lines directly into our new state-of-the-art aggregate production plant!.
Pattison’s advanced direct to rail loadout system coupled with the Pattison rail spur allows aggregate products to be loaded directly from the production plant on to enclosed rail ore cars for delivery. Eliminating excess handling saves costs, and insures a higher quality product.
Pattison High Quality Aggregates and Proppants
Pattison produces high quality ordovician dolomitic limestone Aggregates and silica proppants. Our Clayton IA, quarry contains multiple limestone ledges yielding material with a variety of properties that meet various requirements. Our products are certified for use by multiple state Departments of Transportation, and the FAA.
Revetment Stone
Asphalt Stone
Ballast Stone
Concrete Stone
Clean Stone
Fine Aggregate
RoadRock
Proppants
Specialty Products
Contact our Aggregate Sales Team for more information!
Contact our Aggregate Team Now!
Our quarry is located in Clayton, IA. We are one of the only sources of Aggregates and Proppants that can load directly to Rail, Truck or Barge from the same facility! Our logistic & delivery systems out pace our competitors. We’d love to hear from you!
Contact information
Aggregate Team
: (563) 964-0106
: AggInfo@pattisonsand.com
Main Office
701 1st Street
Clayton, IA 52049
: (563) 964-2860
: info@pattisonsand.com
Operations Office
24312 Mississippi Rd., Clayton, IA 52049
Hours of operation
Office Open Monday – Friday: 8am to 4pm
Operating Hours – 24/7