کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6720318 | 503559 | 2015 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Permeation characteristics and impact factors of geopolymers made of kaolin
ترجمه فارسی عنوان
خصوصیات نفوذ و عوامل تاثیرگذار ژئوپلیمرهای ساخته شده از کائولن
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
چکیده انگلیسی
Geopolymer was prepared from raw materials that were mixed in various proportions based on design of experiments and permeability tests and statistical analyses are performed to investigate the factor that most strongly affected their hydraulic conductivity. Laboratory results reveal that OHâ (M) had the most significant effect on the hydraulic conductivity of geopolymers, followed by SiO2 (mol), Na2O (mol) and the interaction between OHâ and Na2O. The measured hydraulic conductivity of 27 groups of geopolymers was in the range 10â9-10â11Â m/s and the porosities were 50-61%. Measurements differed considerably from values predicted by the proportionality between the hydraulic conductivity and the cube of porosity for a homogeneous porous medium. The measurement of pore size and distribution by Mercury Intrusion Porosimetry (MIP) revealed that the OHâ (M) concentration significantly affected the diameters of pores in geopolymers, and that the variation in the d50 values of the pores varied by a factor of ten. SiO2 (mol) affected only the proportion of pores with small diameters, and insignificantly influenced the overall distribution of diameters of the pores. A linear relationship exists between hydraulic conductivity and d50 of geopolymer, with an r2 as high as 0.98.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 93, 15 September 2015, Pages 301-308
Journal: Construction and Building Materials - Volume 93, 15 September 2015, Pages 301-308
نویسندگان
Ming-Sheng Ko, Hsing-Yen Chen, Syuan-Jhih Lyu, Tai-Tien Wang, Tzuu-Hsing Ueng,