Experimental Study on Effects of Various Factors on Bleeding Test Results of Fresh Concrete Using Small Container

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  • 小型容器によるコンクリートのブリーディング試験結果に及ぼす各種要因の影響に関する実験的研究

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<p>The purpose of this study is to clarify the effects of various influencing factors on bleeding test results of fresh concrete using small containers. We investigated the effects of container material and size，environmental temperature, filling method of sample, time interval of measurement, raw materials and mix proportions of concrete. The main conclusions are summarized as follows: 1) The bleeding amount measured by using a container with diameter (φ) of 125 mm and height (h) of 215.5 mm or φ150 mm-h255 mm closely approximated the test result of JIS A 1123 (container size: φ250 mm-h285 mm). 2) The test result for the bleeding rate using a container of φ125 mm-h 212.5 mm was slightly larger than that of JIS A 1123.</p>

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