WASHINGTON—Seventy-five percent of scrap tires generated in the U.S. in 1996 found their way to some market, according to a new study from the Scrap Tire Management Council. Tire-derived fuel remained far and away the major market for scrap tires, whereas whatever market existed for pyrolysis collapsed, according to the STMC ``1996 Scrap Tire Use/Disposal Study.''
Some 266 million tires were scrapped in the U.S. last year, up 13 million from 1994, the study said. Gains in the number of both registered vehicles and miles driven per vehicle account for the rise in scrap tire generation, the council said.
While TDF grew 50 percent in usage—to 152 million tires in 1996—ground rubber applications enjoyed the biggest surge. About 12.5 million tires were ground into crumb last year, a 277-percent surge since 1994. Ground rubber took no better than third place, however, among scrap tire markets; in second place was tires for export, at 15 million.
Civil engineering applications—at fourth place with 10 million—slipped from the 12 million to 15 million they claimed in 1995, according to the study.
Bad publicity associated with fires in highway embankments in Washington state curbed the growth of that market.
Rounding out the active scrap tire markets in 1996 were punched and stamped products, 8 million tires; agricultural applications, 2.5 million; and miscellaneous uses, 1 million. Pyrolysis—the breakdown of scrap tires into their components—was nowhere on the list.
Copies of the 67-page ``1996 Market Use/Disposal Study'' may be ordered for $25 each from the STMC, 1400 K St. N.W., Ninth Floor, Washington D.C. 20005; or fax 202-682-4854.