نوع مقاله : مقاله پژوهشی
نویسندگان
گروه مهندسی عمران، دانشکده فنی و مهندسی، دانشگاه صنعتی نوشیروانی، بابل، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Every year, a significant amount of waste brick is removed from the construction cycle and is accumulated in the landfill. The recycling of these wastes can significantly reduce the problem of waste storage and environmental pollution and help preserve the resources of natural aggregates. In the current research, crushed brick aggregate (CBA) has been used as a substitute for sand (0, 10, 20, 30 and 40%) in 5 roller compacted concrete pavement (RCCP) mixing plans. Mechanical properties including tests of compressive strength, tensile strength, and fracture behavior in the first mode of loading using a three-point bending test on 60 semi-circular bending (SCB) specimens with initial cracks of 20 and 25 mm in length and the loading rate of 1 and 5 mm/min was studied. The results indicate that the compressive and tensile strength values of RCCP samples decrease with the increase in the amount of CBA. At a constant loading rate, the fracture toughness (KI) decreases with increasing crack length, and, with increasing loading rate, KI increases in constant crack length.
کلیدواژهها [English]
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