کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5468591 | 1519043 | 2017 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Physical and strength development in lime treated gypseous soil with fly ash - Micro-analyses
ترجمه فارسی عنوان
توسعه فیزیکی و قدرت در خاک آهکی آهک با خاکستر پروازی - میکرو تجزیه و تحلیل
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کلمات کلیدی
اترینگیت، خاکستر پرواز گیگابایت، ریز ساختار، کانی شناسی،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
ژئوشیمی و پترولوژی
چکیده انگلیسی
An attempt has been made to examine the role of fly ash content (0-30%) to control undesirable strength loss in lime-treated expansive soil containing gypsum (0-6%) after curing for different periods up to one year. Further, detailed experimental investigations have been performed to assess the plasticity, swell index and compaction behavior of soil treated with these additives. Results of the strength behavior revealed that a significant effect of higher fly ash content in the strength development of lime-treated soil is observed after longer curing periods. Presence of increasing amounts of gypsum accelerates early strength gain initially, but reduces long-term strength gain in soil-lime-fly ash mixes. Fly ash improves the strength of lime-treated gypseous soil. However, beneficial use of fly ash to improve the strength of lime treated gypseous soil depends on the amount of gypsum present in the soil and length of curing periods. Micro-analyses (XRD and SEM) revealed that the strength development is controlled by reaction products formed such as cementitious compounds and ettringite crystals.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Clay Science - Volume 145, 1 September 2017, Pages 17-27
Journal: Applied Clay Science - Volume 145, 1 September 2017, Pages 17-27
نویسندگان
Arvind Kumar Jha, P.V. Sivapullaiah,