Plastic and nonmetallic article shaping or treating: processes – Direct application of electrical or wave energy to work – Limited to treatment of surface or coated surface
Patent
1997-11-26
2000-02-29
Aftergut, Karen
Plastic and nonmetallic article shaping or treating: processes
Direct application of electrical or wave energy to work
Limited to treatment of surface or coated surface
264447, 264131, 264911, 264918, 427558, 427180, 427222, B05D 306, B05D 702
Patent
active
06030572&
ABSTRACT:
A method for producing a plastic aggregate for use in concrete compositions includes exposing high density plastics to ultraviolet irradiation in the presence of a strong alkali. The plastic may be recycled plastic which has been washed and cut into strips. Plastic aggregates according to the invention have an increased affinity for common concrete binders such as portland cement. A cement composition made with such plastic aggregates may include up to 60% by volume of plastic aggregate. The plastic aggregates are well adapted for use in concrete compositions used to make pre-cast concrete components.
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Aftergut Karen
Environmentally Engineered Concrete Products, Inc.
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