کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10145804 | 1646368 | 2018 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Self-healing capability of cementitious materials with crystalline admixtures and super absorbent polymers (SAPs)
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this study, the self-healing property of cementitious materials with crystalline admixtures (CAs) and super absorbent polymers (SAPs) was investigated. Specimens were pre-cracked with a crack width of 0.210-0.304â¯mm at 7 and 28â¯days. The self-healing capacity was evaluated with the water flow test and crack closing test, and self-healing products were investigated with a scanning electron microscope (SEM). The water flow of specimens containing CAs greatly decreased relative to that of the plain specimen after self-healing. The results indicate that the CAs increased the self-healing capability of cement-based materials. The specimen containing SAPs was observed to re-swell and seal cracks. For example, the water flow was reduced 100% in the case with a 0.256â¯mm crack width. Using CAs with SAPs accelerated the crack sealing. SEM observation confirmed that CAs produced more self-healing products around SAPs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 189, 20 November 2018, Pages 1054-1066
Journal: Construction and Building Materials - Volume 189, 20 November 2018, Pages 1054-1066
نویسندگان
Byoungsun Park, Young Cheol Choi,