کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
779856 1464171 2006 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Statistical variations in impact resistance of polypropylene fibre-reinforced concrete
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
Statistical variations in impact resistance of polypropylene fibre-reinforced concrete
چکیده انگلیسی

The impact resistance of polypropylene fibre-reinforced concrete (FRC) was investigated using the repeated drop-weight impact test recommended by ACI Committee 544. The results were analysed based on a statistical approach. The variation in results was examined within the same batch and between different batches. Statistical parameters were compared with reported variations in impact resistance of concrete composites reinforced with other types of fibres such as carbon and steel fibres. Statistical analysis indicated that the results obtained from this test had large variations and it is necessary to increase the number of replications to at least 40 specimens per concrete mix to assure an error below 10%. It is concluded that this test with its current procedures and recommendations should not be considered as a reliable impact test. This study has highlighted the need for modifying this test in such a way as to increase its accuracy and reduce the large variation in results.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Impact Engineering - Volume 32, Issue 11, November 2006, Pages 1907–1920
نویسندگان
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