Back to Search

Calcium sulfoaluminate cement and supplementary cementitious materials-containing binders in self-healing systems

Title	Calcium sulfoaluminate cement and supplementary cementitious materials-containing binders in self-healing systems
Author	Acarturk, B. C., Sandalcı, Ilgın, Hull, N. M., Bundur, Zeynep Başaran, Burris, L. E.
Publication Date:	2023-08
Publication Place	- Elsevier
Subject	Bacteria viability, Calcium sulfoaluminate cement, Fly ash, Self-healing of cracks, Sustainability
Type	Periodical
Language	English
Digital	Yes
Manuscript	No
Library:	Özyeğin University
Library Asset ID	0958-9465
Record ID	ad8667a2-1202-407b-90be-a38cae1a76db
Library Location	Civil Engineering
Date	2023-08
Notes	Ohio Department of Transportation
Sample Text	Creation of more durable concrete is one pathway to achieving improved sustainability and carbon footprint over a concrete structure's life. Microbially induced calcite precipitation has been shown to densify concrete microstructure and fill cracks, reducing moisture transport. One challenge associated with the longevity of bacterial-concrete systems is the high pH environment of the cement paste. Herein, two approaches to address this challenge were investigated: (i) sustainable binder systems, such as calcium sulfoaluminate (CSA) cement and fly ash substitutions of ordinary portland cement (OPC), which lead to lower pH systems, and (ii) non-axenic bacterial cultures, which may facilitate growth of more alkaline-resistant bacteria. Mechanical properties, water absorption, self-healing ability, and survivability of the bacterial systems were tracked, finding that incorporation of non-axenic bacteria did not result in increased bacteria survivability compared to axenic bacteria. However, both bacteria healed cracks [removed]
DOI	10.1016/j.cemconcomp.2023.105115
Cilt	141

View in source Özyeğin University Özyeğin University - Historical works, archives, and periodicals search engine

Özyeğin University

Calcium sulfoaluminate cement and supplementary cementitious materials-containing binders in self-healing systems

Author Acarturk, B. C., Sandalcı, Ilgın, Hull, N. M., Bundur, Zeynep Başaran, Burris, L. E.

Publication Date 2023-08

Publication Place - Elsevier

Subject Bacteria viability, Calcium sulfoaluminate cement, Fly ash, Self-healing of cracks, Sustainability

Type Periodical

Language English

Digital Yes

Manuscript No

Library Özyeğin University

Library Asset ID 0958-9465

Record ID ad8667a2-1202-407b-90be-a38cae1a76db

Library Location Civil Engineering

Date 2023-08

Notes Ohio Department of Transportation

Sample Text Creation of more durable concrete is one pathway to achieving improved sustainability and carbon footprint over a concrete structure's life. Microbially induced calcite precipitation has been shown to densify concrete microstructure and fill cracks, reducing moisture transport. One challenge associated with the longevity of bacterial-concrete systems is the high pH environment of the cement paste. Herein, two approaches to address this challenge were investigated: (i) sustainable binder systems, such as calcium sulfoaluminate (CSA) cement and fly ash substitutions of ordinary portland cement (OPC), which lead to lower pH systems, and (ii) non-axenic bacterial cultures, which may facilitate growth of more alkaline-resistant bacteria. Mechanical properties, water absorption, self-healing ability, and survivability of the bacterial systems were tracked, finding that incorporation of non-axenic bacteria did not result in increased bacteria survivability compared to axenic bacteria. However, both bacteria healed cracks [removed]

DOI 10.1016/j.cemconcomp.2023.105115

Cilt 141