کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5454555 | 1514354 | 2017 | 30 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Long-term mitigating effect of lithium nitrate on delayed ettringite formation and ASR in concrete - Microscopic analysis
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Long-term mitigating effect of lithium nitrate on delayed ettringite formation and ASR in concrete - Microscopic analysis Long-term mitigating effect of lithium nitrate on delayed ettringite formation and ASR in concrete - Microscopic analysis](/preview/png/5454555.png)
چکیده انگلیسی
In the present study, microstructural features associated with microcracking and ettringite infilling showed relatively reduced intensity of internal distress and damage when lithium nitrate was admixed in DEF expansive concrete. Microanalyses plotted as Al/Ca versus S/Ca shows that, the use of lithium nitrate leads to formation of non-expansive delayed ettringite similar to normal early-age ettringite formed in moist-cured concretes. These observations give some insights into the mechanism responsible for mitigation of DEF by lithium nitrate.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Characterization - Volume 133, November 2017, Pages 165-175
Journal: Materials Characterization - Volume 133, November 2017, Pages 165-175
نویسندگان
Stephen Ekolu, Gift Rakgosi, Doug Hooton,