کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4912645 1428750 2017 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of sulfate on cement mortars containing Li2SO4, LiNO3, Li2CO3 and LiBr
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Effect of sulfate on cement mortars containing Li2SO4, LiNO3, Li2CO3 and LiBr
چکیده انگلیسی
The results showed that Li2CO3 among the other lithium additives was effective in shortening the initial setting and final setting times, while LiNO3 and LiBr additives gave the best results in terms of strength and length change when tested for 1% additive ratio by mass. The highest length change was observed for the specimens with Li2CO3 cured both in water and sulfate solution. The lowest length change was observed for the specimens with LiNO3 cured both in water and sulfate solution. 1% LiNO3 additive gave the best results under sulfate effect for all test days. The length change of cement mortar with 1% LiNO3 additive was decreased by 53%, 25%, and 41% under sulfate effect for the 90th, 180th, and 360th day, respectively. It is believed that the use of LiNO3 and LiBr additives at the ratio of 1% by mass will reduce the unfavorable influence of sulfate. Li2CO3 and LiSO4 should not be used because they have negative effects on mechanical properties and length changes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 156, 15 December 2017, Pages 46-55
نویسندگان
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