کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6712616 | 1428726 | 2018 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Characterization of ferrocement slab panels containing lightweight expanded clay aggregate using digital image correlation technique
ترجمه فارسی عنوان
خصوصیات پانل های ورق فولادی که حاوی مقادیر سبک خاک رس است با استفاده از روش همبستگی تصویر دیجیتالی
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
چکیده انگلیسی
Ferrocement slab panels (FSPs) are thin-walled elements with appropriate strength, hardness, durability and lightness. The flexural behavior of FSPs has been investigated in this study. Specifically, 12 FSPs containing three expanded rib lath layers (i.e. one, two and three) and four volume contents of lightweight expanded clay aggregate (leca) (40, 20, 10 and 0â¯vol%) were constructed and exposed to three-point flexural test. Digital image correlation (DIC) technique as a full-field approach was used for measuring displacements and strains of the FSPs and the results were compared with those obtained from the displacement sensors. The cracking behavior of the FSPs was also evaluated using the DIC technique. The microstructure of the mortar of FSPs was finally investigated using scanning electron microscopy (SEM) imaging along with energy dispersive spectroscopy (EDS) analysis. The DIC results show that as the mesh volume fraction increases, the flexural capacity (about 14-70%), ductility index (about 9-24%), energy absorption (about 16-107%) and number of cracks increase but the length and width of cracks decrease. The DIC results also indicate that incorporating 10% leca leads to the highest increase of energy absorption (about 48%), ductility index (about 26%) and crack width (about 106%) of the FSPs. The results of microstructural analysis show that incorporating super-plasticizer admixture can decrease the total porosity of mixtures (by about 29-79%).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 180, 20 August 2018, Pages 464-476
Journal: Construction and Building Materials - Volume 180, 20 August 2018, Pages 464-476
نویسندگان
Amirhossein Madadi, Hamid Eskandari-Naddaf, Rasoul Shadnia, Lianyang Zhang,