Evaluation of self-healing of internal cracks in biomimetic mortar using coda wave interferometry

Name: Evaluation of self-healing of internal cracks in biomimetic mortar using coda wave interferometry
Author: Liu, S., Bundur, Zeynep Başaran, Zhu, J., Ferron, R. D.

İsim	Evaluation of self-healing of internal cracks in biomimetic mortar using coda wave interferometry
Yazar	Liu, S., Bundur, Zeynep Başaran, Zhu, J., Ferron, R. D.
Basım Tarihi:	2016-05
Basım Yeri	- Elsevier
Konu	Self-healing, Mortar (E), Microcracking (B), Curing (A), Ultrasonic wave
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	0008-8846
Kayıt Numarası	47a64b6b-e457-4260-a3fa-40ab49969bcd
Lokasyon	Civil Engineering
Tarih	2016-05
Notlar	Due to copyright restrictions, the access to the full text of this article is only available via subscription.
Örnek Metin	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

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Evaluation of self-healing of internal cracks in biomimetic mortar using coda wave interferometry

Yazar Liu, S., Bundur, Zeynep Başaran, Zhu, J., Ferron, R. D.

Basım Tarihi 2016-05

Basım Yeri - Elsevier

Konu Self-healing, Mortar (E), Microcracking (B), Curing (A), Ultrasonic wave

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 0008-8846

Kayıt Numarası 47a64b6b-e457-4260-a3fa-40ab49969bcd

Lokasyon Civil Engineering

Tarih 2016-05

Notlar Due to copyright restrictions, the access to the full text of this article is only available via subscription.

Örnek Metin 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