Erosion Control System

Hexacon™

A PavestoneCompany

The Hexacon™ product is a precast interlocking articulating concrete block used for erosion control protection in various hydrologicalapplications. The Hexacon™ product is available in both open- and closed-cell configurations, offering the ultimate hydraulic stabilityand/or ecological benefit on critical or environmentally sensitive projects.

Hexacon™ product may be installed as a preassembled mattress or placed individually by hand. The Hexacon™ block is used in conjunctionwith a geotextile fabric underlayment to provide scour protection and prevent soil loss. This system endows owners, designers andcontractors with proven solutions to wide variety of erosion control problems.

The Hexacon™ product has been proven in both laboratory and field applications since 1995. Time after time, the Hexacon™ systemcontinues to provide economic, ecological and hydraulic value to projects for specifiers and end users alike.

Hexacon™ is made from a “no slump” concrete mix. Made under extreme pressure and high frequency vibrations, Hexacon™ has acompressive strength greater than 4000psi, a water absorption maximum of 7% and will meet or exceed ASTM D 6684.

PRODUCT INFORMATION

APPLICATIONSStorm Channels & Ditches • Dikes & Levees • River& Streams • Bridge Abutments • EmbankmentsLakes & Reservoirs • Detention Ponds • SpillwaysBoat Ramps • Earthen Dams

Hexacon™

COMPOSITION AND MANUFACTURE

INSTALLATION

Up to 40'

Up to 8'

HEXACON BLOCKS

CABLE LOOPSLocate Anchor Here

Cable End Crimps (4)

12" O.C.

Locate area to be paved with Hexacon™ and mark limits of block installation. Contactlocal authorities for locating and identifying existing utilities and check for new orproposed utility locations. Remove any brush, rock or otherwise unacceptablematerials interfering with final grading prior to placement of fabric and block*. Thesubgrade shall be raked, screeded, or rolled by hand or machine to achieve a smoothcompacted surface that is free of loose material.

Cover area to be paved with appropriate geotextile* fabric. The geotextile shall beplaced so that upstream and upslope strips overlap downstream and downslope strips.Overlaps shall be in the direction of flow wherever possible. The longitudinal andtransverse joints shall be overlapped at least 3 feet (91cm) for below-waterinstallations and at least 1.5 feet (46 cm) for dry installations. The geotextile shallextend beyond the top, toe and side termination points of the revetment.

Placement of the Hexacon™ system shall be performed to ensure that the individualblocks lie in intimate contact with the geotextile and subgrade. The joint spacingbetween adjacent blocks is to be maintained so that binding of blocks does not occurand so that block to block interface is achieved. In areas of curvature or gradechange, alignment of an individual block with adjacent blocks shall be oriented suchthat intimate contact between the block, geotextile, and subgrade is maintained andblock to block interface is achieved.

When assembling cabled mattresses prior to installation or cabling the matrix after theblocks have been laid in place, cables or ropes shall be inserted longitudinally througheach block and the loose ends fastened to insure blocks remain bound in the event ofmatt lifting or hydraulic scour.

Avoid damage to the geotextile or subgrade during mat installation. The Hexacon™

placement shall begin at the upstream section and proceed downstream. On slopedsections, placement shall begin at the toe of the slope and proceed upslope. Individualblocks within the plane of the finished system shall not exceed a 0.5 inch (13 mm) orgreater protrusion than the tolerance referenced in related contract documents*.

The open area of the articulating concrete block system is typically either backfilledwith suitable soil for revegetation, or with 3/8 to 3/4 inch (10 mm to 20 mm) diametercrushed stone. Backfilling with soil or granular fill within the cells of the system shallbe completed as soon as practical after the revetment has been installed. When topsoilis used as a fill material above the normal waterline, overfill by 1 to 2 inches (25 to50 mm) to account for backfill material consolidation.

* Product selection shall be under the direction of a licensed engineer familiar with sitespecific conditions and local state/municipal requirements. Engineering is typicallyrequired and is recommended.

© 2007 by Pavestone Company. All Rights Reserved. , Improving YourLandscape™, Hexacon® and HydroPave® are trademarks of the Pavestone Company.

SKU

# C

M 1

83v4

07

/07

www.hydropave.com

ICPI Charter Member Retaining Wall SystemsMember of ASLA and NCMA

Hexacon™ Closed

Nominal Dimensions 16 1/8 L x 12 W x 4 3/4" H 16 1/8 L x 12 W x 4 3/4" H

Wt./Stone 45 lbs. Avg. 42 lbs. Avg.Stones/Pallet 48 48Sq. Ft./Pallet 54 54Approx. Wt./Pallet 2160 lbs. 2016 lbs.Product Number 1864 1854

Hexacon™ HX475-20 Mattress

Hexacon™ Open

Complete installation & specification details are available by contacting yourPavestone Sales Representative.

Fractional Dimensions are nominal

Hexacon™ Open shown

• Atlanta, GA: (770) 306-9691• Austin/San Antonio, TX: (512) 558-7283• Boston, MA: (508) 947-6001• Cartersville, GA (770) 607-3345• Charlotte, NC: (704) 588-4747• Cincinnati, OH: (513) 474-3783• Colorado Springs, CO: (719) 322-0101• Dallas/Ft. Worth, TX: (817) 481-5802• Denver, CO: (303) 287-3700• Hagerstown, MD: (240) 420-3780

• Houston, TX: (281) 391-7283• Kansas City, MO: (816) 524-9900• Las Vegas, NV: (702) 221-2700• New Orleans, LA: (985) 882-9111• Phoenix, AZ: (602) 257-4588• Sacramento/

Winters, CA: (530) 795-4400• St. Louis/

Cape Girardeau, MO: (573) 332-8312