نویسنده
Liu, S., Bundur, Zeynep Başaran, Zhu, J., Ferron, R. D.
تاریخ انتشار
2016-05
محل انتشار
-
Elsevier
موضوع
Self-healing, Mortar (E), Microcracking (B), Curing (A), Ultrasonic wave
نوع
دوره ای
زبان
انگلیسی
دیجیتال
بله
نسخه خطی
خیر
کتابخانه
دانشگاه اوزیغین
شناسه دارایی کتابخانه
0008-8846
شماره ثبت
47a64b6b-e457-4260-a3fa-40ab49969bcd
محل کتابخانه
Civil Engineering
تاریخ
2016-05
یادداشتها
Due to copyright restrictions, the access to the full text of this article is only available via subscription.
متن نمونه
Calcium carbonate biomineralization is a bio-chemical process in which calcium carbonate precipitation is obtained by leveraging the metabolic activity of microorganisms. Studies have shown that biomineralization can be used to repair surface cracks in cement-based materials. One of the challenges in determining whether biomineralization is a feasible option for internal crack repair pertains to how to monitor and quantify self-healing of internal microcracks. In this study, mortar samples with and without microcracks and microorganisms were cured in different environments until 50 days. Coda wave interferometry measurements, a nondestructive method that is very sensitive to small changes in material, were conducted on these samples to evaluate the extent of self-healing during the entire curing period. Compressive strength tests were performed after 7 and 28 days of curing. The results indicated that the cracked mortar samples with microorganisms showed significantly higher strength development and higher relative velocity change than samples without microorganisms.
DOI
10.1016/j.cemconres.2016.01.006
Cilt
83
