کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4913514 | 1428767 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Matrix design for waterproof Engineered Cementitious Composites (ECCs)
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The excellent crack control capability of Engineered Cementitious Composites (ECCs) is exceedingly beneficial for waterproofing applications. To design a suitable ECC matrix for waterproofing applications, waterproofing admixture (WPA) was added to improve the wetting property and reduce the sorptivity, and shrinkage-reducing admixture (SRA) together with calcium sulfoaluminate cement (SAC) were introduced to control the drying shrinkage. A comprehensive experimental program was conducted to optimize the use of WPA, SRA and SAC. Moreover, the water permeability of both un-cracked and cracked ECCs were examined. This work finally developed a kind of waterproof ECC, with 28-day compressive strength around 35Â MPa, ultimate tensile strain over 4%, a water contact angle larger than 110 degree, 28-day drying shrinkage about 2/3 the value of the typical ECC (M45), a water absorption rate around 5Â ÃÂ 10â5Â mm/s1/2 and a water permeability coefficient about 8Â ÃÂ 10â12Â m/s. The findings of this research should be rewarding for the design of ECCs for waterproofing applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 139, 15 May 2017, Pages 438-446
Journal: Construction and Building Materials - Volume 139, 15 May 2017, Pages 438-446
نویسندگان
Jing Yu, Hedong Li, Christopher K.Y. Leung, Xiuyi Lin, Jeffery Y.K. Lam, Ivan M.L. Sham, Kaimin Shih,