Driving Innovation, Creating Value.

Pattison Crushing plant overview Superior Quality Ordovician Dolomitic Limestone Fine Aggregate Pattison Fine Aggregate meets the highest quality specifications.
It can be used in interstate highway paving, on bridge decks and
overlays. It is approved by IADOT, MODOT, and MNDOT
State of the art crushing plant State-of-the-Art Cone Crushing Plant The Pattison Aggregate Crushing Plant is state-of-the-art.
It produces the finest aggregates from one of the oldest and
most competent limestone ledges in all of Iowa.
Pattison Material Handling heavy equipment Highly refined and Sophisticated Production Workflow The Pattison aggregate production workflow is the
product of years of design, development, innovation, and
the diligent efforts of some of the finest engineers in the
aggregate production industry.
Pattison direct aggregate loading system Direct to Rail Fast & Efficient Load Out Our recent rail spur expansion extends multiple rail lines
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 Material - Ordovician Dolomitic Limestone

Pattison ASPHALT MATERIAL is produced using the highest quality ordovician dolomitic limestone. It is manufactured to specific physical properties and sizes.  Because the material is manufactured from high grade ordovician dolomitic limestone, it contains minimal deleterious materials. When Pattison ASPHALT MATERIAL is used, the need for costly additives is dramatically reduced. Pattison ASPHALT MATERIAL has exceptional friction factor, improving traction and life expectancy, freeze/thaw impacts, and reduced maintenance costs.

Asphalt Material

Also known as fine aggregate, concrete sand, unwashed asphalt stonemanufactured sand, ManSand, and washed asphalt chips, Pattison produces these products in our state-of-the-art, jaw/cone crushing plant featuring compression crushing technology.  It is is designed to  increase fractured faces.

Asphalt Material Certifications

Pattison high quality Ordovician Dolomitic Limestone is used in Department of Transportation interstates and highways, hot mix asphalt roads, chip overlays, ultra thin overlays, microsurfacing, and chip seal roads.

Exceptional Quality Source Material

This material requires specific physical properties. Pattison’s quarries feature a variety of ledges that yield materials that meet our customer’s specific needs. Pattison’s ASPHALT MATERIAL is produced from selected ledges of high quality rock which are durable and contain minimal deleterious material. As a result, Pattison’s ASPHALT MATERIAL outperforms materials from non-Ordovician limestone quarries on freeze thaw, abrasion, specific gravity and absorption tests.

Asphalt Material Production

Pattison ASPHALT MATERIAL is of exceptional quality and are approved by the Departments of Transportation in Iowa, Missouri, and Minnesota  They are the optimal choice aggregate for asphalt and concrete material projects.

Because Pattison uses a direct to rail transfer system, these products move quickly from production to rail with minimal handling. This  reduces product degradation and handling costs. Here is what Wikipedia has to say

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.

Fine Aggregate Certifications

CertificationsSizesTech SizeMaterial Type
IADOT Fine Agg.

Asphalt Mansand
Concrete Mansand
3/8" Chips
Fine Slurry Mixture
Coarse Slurry Mixture
1/4" Chips
3/8" x #30
3/8" x #30
3/8" x 1/8"
1/4" minus
1/4" minus
1/4" x #8
3/8” x #50
Dolomitic Limestone
MNDOT Fine Agg.

FA 2.5 & FA 3
Gradation D
Gradation A
FA-1 and FA-2
Asphalt Mansand
Concrete Mansand
1/4" Chips
3/8" Chips
Fine Slurry Mixture
Coarse Slurry Mixture
3/16th" Chips
3/8" x #30
3/8" x #30
1/4" x #8
3/8" x 1/8"
1/4" minus
1/4" minus
#4 x #16
Dolomitic Limestone
MODOT Fine Agg.

Grade A1,B1,C
Grade A2 & B2
Asphalt Mansand
Concrete Mansand
3/8" Chips
1/4" Chips
3/8" x #30
3/8" x #30
3/8" x 1/8"
1/4" x #8
Dolomitic Limestone

Fine Aggregate Properties

Abrasion26% to 31%
Insoluble Residue1.53% to 4.29%
Disclosure: The information presented above is to the best of our knowledge accurate based on testing by certified independent laboratories. Any recommendations or suggestions are made without guarantee since conditions and/or material handling are out of our control. Pattison warrants that purchased product will meet the specifications set forth by the buyer.

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 MATERIAL.

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 MATERIAL of exceptional quality.

Pattison Roadrock Plant

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 Direct to rail load out

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



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