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ENGINEERED SOLUTIONS Engineered Hard Armor Solutions ARMORTEC Channel Lining I Shoreline Protection I Dam & Spillway Protection I Levee Stabilization I Bridge Scour Erosion Control Solutions

ArmorFlex: Articulating Concrete Block Mats The industry leader since 1978, ArmorFlex® articulating concrete block (ACB) mats make a flexible matrix of concrete blocks with uniform size, shape and weight used for hard armor erosion control. ArmorFlex blocks have specific hydraulic capacities and are laced longitudinally with galvanized steel, stainless steel or polyester revetment cables which provide ease of handling and installation. Open-Cell Block Closed-Cell Block Side View Applications • Channel lining • Shoreline protection • Boat ramps & access roads • Dam overtopping protection •...

ArmorFlex: Articulating Concrete Block Mats Tapered Series Armortec’s unique Tapered Series ArmorFlex block design offers superior protection for embankment dams, spillways, high velocity channels and down chutes. The essential design component of ArmorFlex Tapered series is the 0.5 inch taper that virtually eliminates destabilizing impact flow forces, thereby providing a high factor of safety. The ArmorFlex Tapered block system has been successfully tested under hydraulic jump conditions at Colorado State University. Each Tapered series design incorporates a four inch rock drainage layer...

ArmorFlex: Installation The proper installation of ArmorFlex ACB mats is important to achieving the intended hydraulic performance and maintaining stability against the erosive forces of flowing water. An ACB revetment system consists of a suitably prepared and compacted subgrade, a suitable site-specific filter fabric and properly sized ACB mattresses placed in “intimate contact” with the filter fabric and subgrade. Each individual site will vary, so it is important to follow the engineering project drawings as designed and sealed by a registered Professional Engineer; particularly as they...

ArmorFlex: Installation Step 1: ArmorFlex arrives on-site as a system of factory-assembled mats. ArmorFlex is placed on a site specific geotextile which has been placed on a prepared subgrade using conventional construction equipment. Step 2: Mats are supplied on flat bed trailers. Mats can be handled with a spreader bar which can be rented from CONTECH. Step 3: Above normal waterline mats may be topsoiled and seeded to give a vegetated effect. Step 4: Proper toe trench requires a minimum of two rows of block buried below predicated soil depth. Tapered series block or mats subject to wave...

ArmorWedge® is a concrete step overlay protection system for embankment dams and spillways that are subject to high forces associated with overtopping flow. Researchers at Colorado State University assessed the stability of the blocks by comparing the downward (positive) forces of the block weight and the pressure of the flowing water to the uplift (negative) forces. The ArmorWedge system was tested up to and including the facility discharge capacity of 40 cf/s/ft. This discharge capacity had associated water velocities of 35 ft/sec and a shear stress of 22 lbs/sqft. Even at these levels...

A-Jacks: Concrete Armor Units A-Jacks® are high stability concrete armor units designed to interlock into a flexible, highly permeable matrix. A-Jacks can be installed either randomly or in a uniform pattern. The voids formed within the A-Jacks matrix provide approximately 40% open space in the uniform placement pattern. These voids provide habitat for fish and other marine life when applied as a reef, revetment or as a soil support system in river applications. In addition, the voids may be backfilled with suitable soils and planted with a variety of vegetation including grasses, shrubs...

Contech Engineered Solutions provides site solutions for the civil engineering industry. Contech's portfolio includes bridges, drainage, retaining walls, sanitary sewer, stormwater, erosion control and soil stabilization products. For more information, call one of Contech's Regional Offices located in the following cities: Ohio (Corporate Office) California (Long Beach) Colorado (Denver) Florida (Tampa) Georgia (Atlanta) Maine (Scarborough) Maryland (Baltimore) Oregon (Portland) Texas (Dallas) Visit our web site: www.ContechES.com 800-338-1122 NOTHING IN THIS CATALOG SHOULD BE CONSTRUED AS...