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بررسی آماری مقاومت ضربهای بتن مبتنی بر پودر واکنشزا و بتن مبتنی بر پودر واکنشزای مسلح به الیاف فولادی | ||
| نشریه مهندسی عمران امیرکبیر | ||
| مقاله 9، دوره 42، شماره 3، بهمن 1389، صفحه 73-83 اصل مقاله (673.5 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22060/ceej.2014.202 | ||
| نویسندگان | ||
| علیرضا باقری1؛ حامد زنگانه2 | ||
| 1استادیار دانشکده مهندسی عمران دانشگاه صنعتی خواجه نصیرالدین طوسی | ||
| 2کارشناسی ارشد مهندسی عمران دانشگاه صنعتی خواجه نصیرالدین طوسی | ||
| چکیده | ||
| کاربردبتن مبتنی بر پودر واکنشزا بهدلیل خواص ویژه مانند مقاومت فشاری بیش از 140 مگاپاسکال، در سازههای خاص مانند سازههای محافظ توسط محققان در حال بررسی است. در تحقیق حاضر مقاومت ضربهای بتن مبتنی بر پودر واکنشزا و بتن مبتنی بر پودر واکنشزا مسلح به الیاف فولادی با استفاده از آزمایش وزنه افتان با ضربههای تکراری مطابق با 544ACI بررسی و نتایج آزمایش با استفاده از روشهای آماری تجزیه و تحلیل شدهاست. برخلاف مقاومت فشاری زیاد بتن مبتنی بر پودر واکنشزا، مقاومت ضربهای آن بسیار کم است. با کاربرد الیاف فولادی مقاومت ضربهای بتن مبتنی بر پودر واکنشزا افزایش قابل ملاحظهای مییابد. همچنین نتایج آزمون کلموگروف-اسمیرنوف مشخص میکند که برخلاف پراکندگی زیاد، نتایج مقاومت ضربهای بتنمبتنی بر پودر واکنشزا و بتن مبتنی بر پودر واکنشزا مسلح به الیاف فولادی که به روش وزنه افتان با ضربه های تکراری تعیین شدهاند دارای توزیع نرمال هستند. | ||
| کلیدواژهها | ||
| بتن مبتنی بر پودر واکنشزا؛ الیاف فولادی؛ مقاومت ضربهای؛ آزمایش وزنه افتان؛ آزمون کلموگروف-اسمیرنوف | ||
| عنوان مقاله [English] | ||
| Statistical assessment of impact resistance of Reactive Powder Concrete and Steel Fiber Reinforced Reactive Powder Concrete | ||
| نویسندگان [English] | ||
| Alireza Bagheri1؛ hamed Zanganeh2 | ||
| چکیده [English] | ||
| The application of Reactive Powder Concrete for the construction of strategic structures such as shelters is under investigation by many researchers, because of their extremely high compressive strength. In this paper, the impact resistance of Reactive Powder Concrete and Steel Fiber Reinforced Reactive Powder Concrete has been studied by using the repeated drop-weight impact test, recommended by ACI Committee 544. The results have been analyzed using statistical methods. Results show that despite the very high compressive strength of Reactive Powder Concrete; its impact resistance is very low. The impact resistance of Reactive Powder Concrete is substantially increased by application of steel fibers. Kolmogorov–Smirnov test indicated that despite large variability of the results, impact resistance of Reactive Powder Concrete and Steel Fiber Reinforced Reactive Powder Concrete obtained from the repeated drop weight test had the normal distribution. | ||
| کلیدواژهها [English] | ||
| Reactive Powder Concrete, Steel Fiber, Impact Strength, Drop-weight test, Kolmogorov–Smirnov test | ||
| مراجع | ||
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