کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4918297 1428756 2017 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mechanical behavior and constitutive relationship of mud with cement and fly ash
ترجمه فارسی عنوان
رفتار مکانیکی و رابطه سازنده گل با سیمان و خاکستر پرواز
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی
In this study, various tests were carried out in order to evaluate the suitability of stabilising high water content waste mud as a fill material. The unconfined compressive strength and elastic modulus of mud treated with different stabilizers were determined. Besides, the relevant micro-structural changes were observed by conducting scanning electron microscopy (SEM). The effects of stabilizers at regular dosage yields (9%) were compared and the optimal additive combination of cement and ash that exhibited favorable strength and elastic modulus was identified accordingly. A field-simulated undrained shear test on the cement and fly ash (FA) mud treated for various curing times (7 and 28 days) was run and the constitutive relationships were derived. The cohesive intercept decreased and failure friction increased over time, while shear strength between the treated mud at 7 and 28 curing days decreased as confining pressure increased. This implies that heaping preloading and other methods imposed during the initial stages of mud treatment can dramatically enhance its strength and reduce the necessary curing time.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 150, 30 September 2017, Pages 426-434
نویسندگان
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