کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
11012632 1798144 2018 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Hybrid effects of nano-silica and graphene oxide on mechanical properties and hydration products of oil well cement
ترجمه فارسی عنوان
اثرات ترکیبی نانو سیلیکا و اکسید گرافین بر خواص مکانیکی و محصولات هیدراتاسیون سیمان چاه نفت
کلمات کلیدی
نانو سیلیکا، اکسید گرافن، اثرات ترکیبی، سیمان چاه نفت، ویژگی های مکانیکی، محصولات هیدراتاسیون،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی
Hybrid effects of nano-silica and graphene oxide on mechanical properties and hydration products of oil well cement have been investigated by means of TEM, TGA, XRD, SEM, MIP and mechanical testing. The results showed the designed hybrid structure was beneficial for SiO2 particles and GO nanosheets to disperse well in alkaline cement. The compressive and flexural strength of cement with hybrid nano-materials of 1.5% NS and 0.03% GO was increased by 43.2% and 42% with 28 days of curing respectively, which was far better than cement with single NS or GO. Graphene oxide and nano-silica have a hybrid effect including better dispersion of nano-materials, higher degree of hydration and pozzolanic reaction, and network structure formation of hydration products, all of which were beneficial to reinforcing the mechanical properties of cement.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 191, 10 December 2018, Pages 311-319
نویسندگان
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