نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه راه و ترابری، دانشکده مهندسی عمران و محیط زیست، دانشگاه تربیت مدرس، تهران، ایران
2 استاد دانشکده مهندسی عمران و محیط زیست، دانشگاه تربیت مدرس، تهران، ایران
3 استادیار، دانشکده مهندسی عمران گرایش مهندسی راه و ترابری دانشگاه آزاد واحد خمین
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
This paper investigates and evaluates the use of slag as aggregate in concrete and its effect on concrete properties including mechanical strengths (compressive, flexural, abrasion, etc.) for its application in simple joint concrete pavements (JPCP). The main variable of changing the type of aggregate in the concrete mixture is natural aggregate (silica), copper slag and steel slag. The aforementioned slags have been replaced with natural aggregate in fine and coarse scales and percentages of 0%, 50% and 100%. The results showed that concrete samples made of copper slag aggregate (100CSA) had the highest resistance in compressive strength, indirect tensile strength, flexural strength and concrete workability (slump) compared to the other samples. The use of copper slag due to its high specific gravity also increased the specific gravity of concrete, which is considered a negative point. Concrete samples with silica aggregate (100NA) showed the best abrasion resistance after 600 abrasion cycles. Finally, considering the results of the tests and the importance of each test, it was found that concrete samples made of 50% copper slag aggregate and 50% silica aggregate (50NA+50CSA) increased the concrete performance among the 5 mix designs made in this study.
کلیدواژه‌ها [English]
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