FCS3

Section 1 Introduction

This report summarizes a project by the California Department of Resources Recycling and Recovery (CalRecycle) aimed at improving the quality and consistency of tire derived products by identifying best management practices (BMP) for the selection and use of crumb rubber made from scrap tires and/or compounded raw materials as a feedstock in manufactured products.. The report was prepared by DK Enterprises under subcontract to SAIC, as part of the California Department of CalRecycle’s Tire-Derived Product Business Assistance Program (TBAP). To develop the BMPs, the project team worked closely with several California firms involved in scrap tire recycling. The identification of BMPs related to product quality is intended to help industry participants to strengthen their supply chain and product offerings, thereby helping to expand and diversify California’s markets for scrap tires. Section 2 of this report provides general guidance on factors to consider when producing crumb rubber and TDPs, and what is required to ensure consistent product performance – essentially an approach for product development refining of specifications for existing products. This Section describes current applicable standards. Section 3 describes real-world applications of the process described in Section 2, based on several interviews with industry stakeholders and two case studies. Section 4 provides the findings and recommendations for BMPs to enhance quality and consistency of TDPs made from crumb rubber. A Glossary of Terms and Appendices A through D provide additional supportive information associated with the report. The Appendices Include:  Appendix A – ASTM Standards  Appendix B – Sample Specification Sheet  Appendix C – Sample TDP Critical to Quality Requirements  Appendix D – Step-by-Step Process Flow Charts

Contractor’s Report

8