LIGHTWEIGHT BACKFILL/LATERAL LOAD REDUCTION The 50% lateral loading properties of TDA is being chosen for commercial foundation walls. The reduced wall loading benefit can give additional design safety factor. ​ TDA reduces lateral earth pressure by 50% compared to granular backfill (ASTM D6870-17; Tweedie et al. 1998). TDA porosity helps keep water draining away from the foundation wall and its insulation properties also reduce heat loss. Home basements and retaining walls have all benefited from TDA. SEE PROJECTS

STORMWATER MANAGEMENT The high permeability of TDA makes it an excellent drainage material for all types of grade drains, collection systems and stormwater applications. ​ Common underground stormwater management methods include using chambers, vaults, clear stone or a combination of those methods. To keep costs down, utilizing the 50% void space of TDA can hold and retain the stormwater runoff in a basin. ​ Cities are starting to age and parts of the areas being redeveloped will require stormwater management in areas with minimal available real estate for above ground ponds. SEE PROJECTS Anchor 1

(Back) Projects: Buildings Concorde Flats Apartments Project engineer sees opportunity in challenging building lots Read More Encore on the Park Apartments Limited space and poor soil? No problem for TDA! Read More HyVee Grocery Store Road surface elevation just a few feet below the building's roof elevation Read More Lake Jonathan Flats Five-story apartment complex next to a highway Read More Parkway Place Apartments Project Nominated for Governor’s Award for Excellence in Recycling Read More

ROAD CONSTRUCTION TDA is ideal for road construction projects due to its lightweight nature, lower cost, longer life span, and a shorter construction period. ​ TDA can be used as lightweight fill over weak foundation soils to limit settlement and increase slope stability. Based on the requirements of the project, TDA can also be used as a replacement for conventional fill in embankments. ​ TDA used as an aggregate layer in roadbeds in cold climates can help mitigate the depth of frost penetration and associated effects that contribute to frost heaves. SEE PROJECTS

PROJECT GALLERY For more than 30 years, we have been helping people with their projects. We would like to invite you to explore the practical applications of TDA in different areas, which could be similar to yours. To gain VIP access, please click on any of the "View" links below and follow the instructions. We will grant you access at your earliest convenience. Stormwater Management The permeability of TDA makes it an excellent drainage material for all types of grade drains, collection systems, and stormwater applications. View Projects. Road Construction & Repair TDA is ideal for these projects due to its lightweight nature, lower cost, longer life span and shorter construction period. It can so be used to address landslides, embankment failures, bridge abutments and frost heaving issues. View Projects . Business & Apartment Buildings TDA is used in building construction because of its lightweight properties, ability to drain water, and its thermal insulation qualities. View Projects . Trails, Nature Areas, Playgrounds & Rain Gardens Land used for recreational purposes can be made of soft, muddy soils. Using a lift of TDA creates a strong foundation and eliminates the risk of settlement or other failures. View Projects. Parking Lots TDA is ideal for these projects due to its lightweight nature, lower cost, longer life span and shorter construction period. View Projects . Landfills TDA can be used in leachate collection systems, recirculation trenches, landfill covers, and as a gas collection layer. View Projects. Residential (Driveways, Retaining Walls, Septic & More) There are many residential uses for TDA. It can reduce load on walls and offer water draining options, often at significant cost savings! View projects . Historic Data: 1990-2013

TRAILS, NATURE & RECREATIONAL SPACES TDA is ideal for trail projects (such as nature trails or bicycle trails) due to its lightweight nature, lower cost, longer life span, and shorter construction period. ​ TDA can be used as lightweight fill over weak foundation soils to limit settlement and increase slope stability. As an added bonus, the hydrophonic property of TDA can prevent seasonal frost affects. SEE PROJECTS

APPLICATIONS STORMWATER MANAGEMENT ​ ​The high permeability of TDA makes it an excellent drainage material for all types of grade drains, collection systems and stormwater applications. DETAILS ROAD CONSTRUCTION ​ ​TDA is ideal for weak foundation soils and can also be used as a replacement for conventional fill in embankments. In cold climates, TDA can also help mitigate the effect of frost. DETAILS LIGHTWEIGHT BACKFILL ​ ​TDA utilized as backfill in foundation walls and conventional walls reduces lateral loading, drains water away from the foundation, and reduces heat loss. DETAILS SITE STABILIZATION Existing lands can be made up of soft, muddy soil at low-lying grades. These properties need a stable foundation that can hold up overlying structures. Utilizing TDA creates a strong foundation, eliminating the risk of differential settlement or other failures. DETAILS SLOPE STABILIZATION Because TDA is lightweight and permeable, it is effective in reducing excessive loading on an unstable slope. An added benefit, TDA's high permeability permits drainage through the various layers and can dramatically reduce the potential hydrostatic pressures that promote slope stability. DETAILS LANDFILL APPLICATIONS ​ ​TDA can be used as a drainage layer in leachate collection systems and landfill covers. Its properties also make it ideal for recirculation trenches and gas collection trenches/layers. DETAILS RESIDENTIAL APPLICATIONS Basement backfill Driveways Foundation pads Retaining walls Septic systems DETAILS VIBRATION MITIGATION TDA can be used as a vibration dampening layer, protective cushion, and seismic isolation layer for earthquake engineering design because of its has a high vibration adsorption capacity. DETAILS PARKING LOTS TDA has been used in parking lots for both stormwater management and site stabilization. DETAILS

SITE STABILIZATION Existing lands can be made up of soft, muddy soil at low-lying grades. These properties need a stable foundation that can be trusted to hold up overlying structures. Placing a lift of TDA directly on the existing grade creates a strong foundation, eliminating the risk of differential settlement or other failures. ​ How does TDA accomplish this? When compacted, the irregular shapes of the TDA pieces interlock in a waysimilar to Velcro. We like to call this the “snowshoe effect” because it spreads throughout the site and prevents individual areas from sinking. In addition, the high permeability and thermal insulation properties of TDA help create a capillary break. Moisture can’t wick its way towards the surface (which prevents frost activity). In fact, TDA has about 8 times better thermal insulation than soil! SEE PROJECTS

The Environmental, Economic and High-Performance Product for Your Engineering Designs Learn More WHAT WE DO MANUFACTURE SUSTAINABLE AGGREGATE ​ TDA Manufacturing - a Division of First State Tire Recycling is an industry leading producer and distributor of TDA (Tire Derived Aggregate) . Building on years of industry expertise, we give new purpose to end of life tires. Our value-added solutions provide environmental, economic and performance benefits for the most challenging civil engineering projects. Why work with us? TESTIMONIALS Read Here RECOGNITION EXCELLENCE IN RECYCLING ​ Certificates of recognition given to projects where our Tire Derived Aggregate was installed. Award Award Award Award 1/6 INTO THE OUTDOORS: "SCRAP TIRES" FEATURE

(Back) Projects: Residential Hooper Driveway (North Branch, MN) A retirement dream Read More New Dawn Country Living Handicapped-accessible home addition Read More Private Driveway (Isanti, MN) Water to run off causing pooling and frost heaving Read More

< Back American Engineering Testing (St. Paul, MN) Saving limited valuable real estate space Year Completed: 2018 American Engineering Testing, Inc. Headquarters is located in St. Paul, Minnesota. They were retained to investigate Stormwater mitigation installations that had used TDA as a water storage material. They recognized the cost efficiencies of an aggregate that was very low cost, less than $5.00 per compacted cubic yard delivered to their job site. This new aggregate can retain 14 cubic feet of water in each cubic yard of TDA installed. This Sustainable new Aggregate material is specified by ASTM as an ASTM 6270-B material and is made from discarded tires. In 2018, American Engineering decided to increase the parking space capacity at their St. Paul location. They historically had an open pond serving as a stormwater device, so in their new property plan, they decided to convert the green space and open pond into more parking spaces. To continue to meet the stormwater requirements they chose to install an under parking lot infiltration gallery. They also choose TDA as the storage media for their site. Frattalone Companies did the site construction and the TDA Installation under the parking lot. First State Tire/TDA Manufacturing was the supplier of the ASTM 6270- B material. The existing pond with TDA before the stormwater system was put in place and the two separate parking lots became one. Yet another benefit of using TDA is the eco-friendly component of saving thousands of tires from a landfill. Project Gallery Previous Next