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Recycling hardened concrete can become a significant growth area for a concrete producer. Crushing offers producers a way to dispose of returned concrete and washout. Once producers find a system that meets their individual plant needs, they find it easy to crush hardened concrete. Unlike many other producers who have launched concrete recycling operations due to material scarcity, Kalamazoo, Mich.-based Consumers Concrete's managers were motivated by a concern for the environment. In 1993, Greg Thomas, manager of aggregate operations, purchased a specially designed portable crushing operation, featuring a horizontal impact crusher and double-deck screen. Consumers transports its portable crushing plant to many of its ready-mix operations. Contractors say that the crushed concrete packs well, providing excellent base for most commercial construction projects. Some of the finer points to consider when purchasing crushing-recycling plants are plant style, throughput capacity, weight limits, pre-sizing, size for raw feed and customized setup. Producers who recycle hardened concrete help communities eliminate unsightly construction debris dumps and provide a usable building material.