TY - JOUR
T1 - Effects of spray-dried co-cultured bacteria on cement mortar
AU - Jang, Indong
AU - Son, Dasom
AU - Kim, Wonjae
AU - Park, Woojun
AU - Yi, Chongku
N1 - Funding Information:
This research was supported by the South Korean Ministry of Land, Infrastructure and Transport (19SCIP-B103706-05). In addition, this study was supported by a Korea University Grant.
Funding Information:
This research was supported by the South Korean Ministry of Land, Infrastructure and Transport ( 19SCIP-B103706-05 ). In addition, this study was supported by a Korea University Grant.
Publisher Copyright:
© 2020 Elsevier Ltd
PY - 2020/5/20
Y1 - 2020/5/20
N2 - Co-cultured bacterial spores from alkaliphilic and alkali-tolerant strains exhibit superior performance compared with those from single strains because of their higher resistance to pH and harsh environments, which promotes biofilm formation and CaCO3 precipitation. In this study, spray-dried co-cultured bacteria spores have been incorporated into cement mortar to explore their effects on its self-healing, mechanical properties, and durability. They showed high survival, decreased mortar sorptivity, and well-crystalline CaCO3 formation; on the other hand, the 28-day compressive strength of the mortar was severely reduced, and the water porosity raised.
AB - Co-cultured bacterial spores from alkaliphilic and alkali-tolerant strains exhibit superior performance compared with those from single strains because of their higher resistance to pH and harsh environments, which promotes biofilm formation and CaCO3 precipitation. In this study, spray-dried co-cultured bacteria spores have been incorporated into cement mortar to explore their effects on its self-healing, mechanical properties, and durability. They showed high survival, decreased mortar sorptivity, and well-crystalline CaCO3 formation; on the other hand, the 28-day compressive strength of the mortar was severely reduced, and the water porosity raised.
KW - Bacteria
KW - Co-cultured bacteria
KW - Concrete
KW - Self-healing
KW - Spray-dried bacteria
UR - http://www.scopus.com/inward/record.url?scp=85078696304&partnerID=8YFLogxK
U2 - 10.1016/j.conbuildmat.2020.118206
DO - 10.1016/j.conbuildmat.2020.118206
M3 - Article
AN - SCOPUS:85078696304
VL - 243
JO - Construction and Building Materials
JF - Construction and Building Materials
SN - 0950-0618
M1 - 118206
ER -