کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6716403 1428744 2018 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Laboratory investigation of graphene oxide suspension as a surface sealer for cementitious mortars
ترجمه فارسی عنوان
بررسی آزمایشگاهی تعلیق اکسید گرافین به عنوان یک سیلر سطح برای ملات سیمان
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی
This work investigated the influence of graphene oxide (GO) suspension as a surface sealer on the properties of two types of cementitious mortars (Portland cement mortar and high-volume fly ash (HVFA) mortar) under two curing conditions (wet curing and dry curing). Experimental results showed that GO surface treatment slightly improved compressive strength of wet cured HVFA mortar and dry cured cement mortar while it significantly reduced the water absorption of wet cured HVFA mortar and the gas permeability of both wet cured and dry cured cement mortars. Scanning electron microscopy (SEM) analysis suggested that the GO surface treatment facilitated the hydration process and densified the microstructure of both types of mortars. X-ray diffraction and Thermogravimetry results revealed the formation of hydroxyl grafted AFm phase at the interface of GO/HVFA mortar. Moreover, the GO surface treatment was found to decrease the carbonation of HVFA mortar but increase that of cement mortar.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 162, 20 February 2018, Pages 65-79
نویسندگان
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