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原文传递 Development of an IDEAL Cracking Test for Asphalt Mix Design, Quality Control and Quality Assurance.

题名：	Development of an IDEAL Cracking Test for Asphalt Mix Design, Quality Control and Quality Assurance.
作者：	Zhou, F.
关键词：	Asphalt mix design, Quality assurance (QA), Development, Cracking performance, Coefficient of variation (COV)
摘要：	Asphalt pavement cracking is a nationwide problem faced by every highway agency. As asphalt mix designs become more complex with the use of recycled materials, rejuvenators, and asphalt binders with various additives,Asphalt Mix Designand asphalt industry urgently need a simple, repeatable, and reliable cracking test for mix design, quality control (QC), and quality assurance (QA). This research project developed an Ideal Cracking Test (IDEAL-CT). The IDEAL-CT is typically run with cylindrical specimens at the room temperature and a loading rate of 50 mm/min. using the indirect tensile loading frame. Different from other cracking tests, the IDEAL-CT integrates all seven desirable features listed below: (1) Simplicity: no instrumentation, cutting, gluing, drilling, or notching. (2) Practicality: minimum training needed for routine operation. (3) Efficiency: test completion within 1 min. (4) Test equipment: existing or low cost equipment (< $10,000). (5) Repeatability: coefficient of variation (COV) less than 20 percent. (6) Sensitivity: sensitive to asphalt mix characteristics. (7) Good correlation with field cracking performance: validated with many field test sections.
报告类型：	科技报告