کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1694211 1011807 2016 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Volume change behavior of lime treated gypseous soil - influence of mineralogy and microstructure
ترجمه فارسی عنوان
رفتار تغییر حجم در خاک آهکی تحت اثر آهک - اثر کانی شناسی و ریزساختار
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات ژئوشیمی و پترولوژی
چکیده انگلیسی
Series of oedometer tests and micro-analytical studies (XRD, SEM and EDAX) have been carried out to investigate the influence of varying gypsum content on swell, compressibility and permeability of lime treated montmorillonitic soil after curing for different period. Immediate swell is observed on inundation of compacted samples with water and continuously increased with gypsum content. However, changes in swell are found to be marginal with curing. This is attributed to the formation and growth of ettringite crystals by ionic reactions of aluminum-calcium-sulfate in the presence of water which is confirmed through detailed micro-analysis. The higher swell in uncured specimens and gradual reduction in swell with increase in curing periods are due to relative dominance of formation and growth of ettringite and cementitious compounds, respectively. Also, the ionic reaction products are found to bear a significant influence on the compressibility and permeability behavior.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Clay Science - Volume 119, Part 2, January 2016, Pages 202-212
نویسندگان
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