Recycling long-term mechanical performance

However, most frequently the decision whether or not to use a particular blend is based on the replacement calculations. These involve not only the simple material cost (expressed by Eq 1), but the total comparable cost of the materials, their forming and assembling, customer satisfaction, esthetics, service life-spans, ease of disposal or recycling, etc. In this approach, one of the most serious problems is to find reliable data on long-term blend performance, i.e., on the mechanisms and rates of physical and chemical aging, as well as weatherability. 

Similarly, the nse of recycled polymers for the manufacture of geotextiles also affects their long-term dnrability. The recycled fibres are often of mixed type and therefore the geotextiles produced from these fibres may not have the same performance and consistency as those of the virgin material-based geotextiles. Therefore, it must be noted that the chemical and mechanical durability characteristics of geotextiles should be considered while designing these materials for the required applications. 

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