پایان نامه

 

مقاله Micromechanical Behavior of HighدرStrength Concrete under compression تحت pdf دارای 8 صفحه می باشد و دارای تنظیمات در microsoft word می باشد و آماده پرینت یا چاپ است

فایل ورد مقاله Micromechanical Behavior of HighدرStrength Concrete under compression تحت pdf کاملا فرمت بندی و تنظیم شده در استاندارد دانشگاه و مراکز دولتی می باشد.

این پروژه توسط مرکز مرکز پروژه های دانشجویی آماده و تنظیم شده است

توجه : در صورت  مشاهده  بهم ریختگی احتمالی در متون زیر ،دلیل ان کپی کردن این مطالب از داخل فایل ورد می باشد و در فایل اصلی مقاله Micromechanical Behavior of HighدرStrength Concrete under compression تحت pdf ،به هیچ وجه بهم ریختگی وجود ندارد

---

بخشی از متن مقاله Micromechanical Behavior of HighدرStrength Concrete under compression تحت pdf :

سال انتشار: 1382

محل انتشار: ششمین کنفرانس بین المللی مهندسی عمران

تعداد صفحات: 8

چکیده:

This paper discusses the results of experimental studies of the micromechanical behavior of high-strength concrete subjected to different loading conditions.Cylindrical specimens of high-strength concrete were tested under uniaxial and triaxial compression. The resulting induced cracks were impregnated with a metal alloy that liquefies at higher temperatures (70 85°C), but is solid at normal temperatures. At the stress of interest, this alloy was solidified to preserve the stress-induced microcracks as they exist under load. This experimental method allows the preservation and identification of cracks and pores in concrete as they exist under load. The specimens were then observed using Scanning Electron Microscopy (SEM) to determine the effect of different loading conditions on the crack behavior of highstrength concrete. Detailed analysis of the SEM images obtained from the highstrength concrete samples after crack induction revealed the profound effect of triaxiality as opposed to uniaxial testing on crack orientation, crack density and crack length. The crack density and the length of the microcracks decreased as the confining stress was introduced

 

 

کلمات کلیدی :