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Tire Shreds Described
In an excellent description, tire shreds is the name given to a finished product once a scrap tire, in its entirety, has been cleared of metallic parts and fiber and then shredded, using a special mechanical shredder. Green Tire Disposal has two sizes available in tire shreds, the most used size being 2” nominal, the other being 1 ½” minus. All Green Tire Disposal tire shreds have been screened to guarantee a consistent product size. Furthermore, both sizes meet if not exceed the criteria stipulated by American Standards for Testing Materials, designation no. ASTM 6270. Since these shreds are light in weight, the lightweight material translates into considerable savings in transportation costs when compared with heavier conventional materials. Tire shreds have a wide range of uses, like alternative fuels, insulation, substitutes for aggregates, lightweight fill and drainage material, amongst others.
Tire Shreds Applications
Tire Derived Fuel (TDF)
TDF is presently the biggest market across USA in tire shreds. Tire shreds work out as a super substitute fuel due to low cost, high BTU value, as well as low emission. TDF has 13-15,000 BTU’s a lb, weighed against 8-11,000 BTU’s a lb of coal. Tire shreds typically cost less than coal since shreds are local products and transportation cost is negligible. They also burn much cleaner vis-a-vis coal. As conventional energy prices soar, TDF is now increasingly used for a host of applications, like cement kilns, public utilities and pulp plus paper boilers.
Applications in Civil Engineering
Construction of Landfills
· Leachate recovery collection scheme
· Operational liners
· Optional daily covers
· Gas vents
· Cap closings
Tire Derived Aggregate
Tire derived aggregate is used for a wide range of public works projects and other civil engineering applications. These include septic systems, slope stabilization, retaining wall backfill, lightweight embankment fill, vibration mitigation, various landfill applications, and more, as will shortly be seen.
: Some states—Alabama, Colorado, Florida, South Carolina, Virginia and Georgia —allow tire shreds to be used in construction of drain fields for septic systems. Tire-derived material replaces traditional stone backfill material, but reduces the expense and labor in building the drain fields. Tire chips can also hold more water than stone and transported more conveniently due to their light weight.
Challenges to using tire shreds in drain fields include tire chip quality (tire chips must be clean cut and be of uniform size) and economics—in some areas, stone is abundant and cheap; tire shreds must be cheaper than stone to be used readily. Tire shreds may be utilized as a substitute to aggregate as constituents of conventional sand bed septic schematics. The Colorado’s Health Department has agreed to usage of the shreds in active septic systems. They form more voids than conventional aggregates, this increasing flow plus percolation rates of septic systems.
Engineered Lightweight Fills (EFA)
– Tire shreds have excellent highway construction and rail track functions. ELF sees usage of tire shreds most often in roadway projects. ELF could be utilized for repairing and mitigating slope failure, backfill in retaining wall structures, and fills around structures and underpinnings. Another use is to dampen vibration beneath rail lines near bridges and construction sites. Green Tire Disposal has been cooperating with RTD in the ongoing light rail scheme in Colorado, wherein thousands of tons of shreds have been employed. They provide a high quality substance to dampening vibration; an inexpensive product, its use has led to multi-thousand dollar savings in building costs.
Retaining Wall Backfill
– Tire shreds are a superior alternate for sand or constructional fill in backfills. When properly positioned at the rear of retaining walls as backfill, tire shreds block off at least half of the sideways earth pressure on the wall. They are also free-draining substances with drainage rates the same as conventional aggregates. Their compaction rates are almost the same as aggregate.
: A foundation drainage system or French drains are used in waterproofing– tire shreds supplement the drainage here. Shreds have one major advantage in usage as underpinning drainage substance is that they are light in weight. Lightweight material facilitates handling and placement when compared to conventional aggregate. Contractors plus installers will benefit from major cost reduction overall, as low labor costs apart from competitive costing.
Foundation Backfill Insulation and Structure
– Tire shreds have significant insulation value and are most useful in foundation backfills. Shreds eradicate almost half the sideways earth pressure on the foundation, while providing a coat of insulation all around the relevant foundation, thereby conserving energy and cutting utility expenses.
Tire Bales Described
Tire bales are a rock-hard compacted batch of wasted tires. A tire bale comprises 89-110 bus plus lightweight truck tires weighing 2,000 lbs, i.e., one American ton. Tire bales dimensions are: 5’ long, 4’2” wide, and 2½’ tall. 5 x 9-gauge stainless steel strands hold the bale compact. Each single bale is able to uphold 375,000 pounds of applied pressure, a huge amount, before letting any failure occur.
Tire Bale Applications
Tire bales help house construction significantly! Earthship homes are no novelty; tire bales make construction of earthships simpler and inexpensive. With its insulation value rated R186, they facilitate a power efficient as well as environment-friendly house. Green Tire Disposal dedicated technicians and architects are on call to help design and build a home.
Windbreaks / Snow Fencing
Tire bales help make a superb windbreak or snow fencing for livestock apart from privacy screens. They are durable as well as maintenance-free. They are also a freely draining substance, unlike complete non-processed tires, eliminating any hazard of the West Nile malady.
Machine-made Lightweight Fills
As they are lightweight fill substances, tire bales can be used to build roads above and through swampy marshland, as well as fillers for bridge substructure at the ends of a bridge span, i.e., abutments. Numerous highway departments use the bales for blocking slope downflow and repair. With its permeability rate similar to rough aggregate, tire bales are free-draining objects.
Noise Mitigating Walls
Highway departments have found tire bales deflecting as well as sucking up sound much better than conventional substances. Further, the cost factor in this application as noise mitigation baffles is usually lower than standard materials. Consequently, tire bales have found application as a noise mitigation wall.
Tire bales can be put to use as retaining walls very effectively. Each bale weighs one ton, so they become a de facto huge and stable block. Their free-draining properties are transferred to the walls, which now become self-draining.