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هشتمین کنگره بین المللی عمران شیراز
جزئیات رویداد
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همایش ، رویداد ، ژورنال
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  • effects of specimen type and dimensions on compressive strength of self compacting concrete

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    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 1251
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
    inadequate homogeneity of the cast concrete due to poor compaction or segregation may dramatically lower the performance of mature concrete in situ. to insure adequate compaction and facilitate placement of concrete in structures self compacting concrete (scc) has been developed. on the other hand, the compressive strength of concrete is used as the most basic and important material property when reinforced concrete structures are designed. in the application of uniaxial compressive strength test, standard cylindrical and cubic specimens are usually employed in the quality control of concrete. in addition to the standard specimens different types and sizes of specimens can be preferred for research and development or comparison purposes. the specimens composed of the same material proportions, and the same strength grade at different geometry and shape may give variable strength values despite they were prepared from the same concrete batch, which makes the test results hard to compare. in this study, the compressive strength values of cubic and cylindrical specimens at two strength levels with different sizes were investigated and transformation coefficients were proposed.

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