![](/images/graphics-bg.png)
Modifying Mechanical Strength and Capillary Porosity of Portland Cement-Based Mortar Using a Biosurfactant from Pseudomonas fluorescens
Joint Authors
He, Huan
Serres, Nicolas
Meylheuc, Thierry
Wynns, Justin T.
Feugeas, Françoise
Source
Advances in Materials Science and Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-01-31
Country of Publication
Egypt
No. of Pages
12
Abstract EN
We characterized the effects of a biosurfactant derived from Pseudomonas fluorescens on slump loss, mechanical strength, capillary porosity, and bacterial colonization inside Portland cement-based mortar samples.
Standard tests were used to evaluate the utility of this biosurfactant as an admixture.
The addition of 1.5% biosurfactant increased the plasticity and improved the workability of fresh samples.
Although compressive and flexural strengths of mortars with biosurfactant were lower than those of mortars without biosurfactant after a short curing period (28 days), the addition of biosurfactant increased the compressive strength of mortar after a long curing period (180 days), with 1% biosurfactant having the highest value.
After 180 days, mortar with biosurfactant had significantly lower capillary absorption coefficient A values (P<0.05) than mortar without biosurfactant.
Furthermore, the addition of biosurfactant reduced the relative abundance of the mortar-deteriorating bacterial genus Pseudomonas (phylum Proteobacteria).
American Psychological Association (APA)
He, Huan& Serres, Nicolas& Meylheuc, Thierry& Wynns, Justin T.& Feugeas, Françoise. 2020. Modifying Mechanical Strength and Capillary Porosity of Portland Cement-Based Mortar Using a Biosurfactant from Pseudomonas fluorescens. Advances in Materials Science and Engineering،Vol. 2020, no. 2020, pp.1-12.
https://search.emarefa.net/detail/BIM-1128106
Modern Language Association (MLA)
He, Huan…[et al.]. Modifying Mechanical Strength and Capillary Porosity of Portland Cement-Based Mortar Using a Biosurfactant from Pseudomonas fluorescens. Advances in Materials Science and Engineering No. 2020 (2020), pp.1-12.
https://search.emarefa.net/detail/BIM-1128106
American Medical Association (AMA)
He, Huan& Serres, Nicolas& Meylheuc, Thierry& Wynns, Justin T.& Feugeas, Françoise. Modifying Mechanical Strength and Capillary Porosity of Portland Cement-Based Mortar Using a Biosurfactant from Pseudomonas fluorescens. Advances in Materials Science and Engineering. 2020. Vol. 2020, no. 2020, pp.1-12.
https://search.emarefa.net/detail/BIM-1128106
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1128106