Impact of air entraining admixtures on biogenic calcium carbonate precipitation and bacterial viability

Bundur, Zeynep Basaran; Amiri, Akram; Erşan, Yusuf Çağatay; Boon, Nico; Belie, Nele De

doi:10.1016/j.cemconres.2017.04.005

Cited by 74 publications

(30 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…is generated from HCO 3 -(aq) in the presence of water and then react with Ca 2+ ions adsorbed on the bacterial cell wall to form a complex Cell-CaCO 3 [15,16]. The mechanism would confidently help to improve concrete durability and contribute to prolong concrete structure life with self-repair technic [17][18][19].…”

Section: -mentioning

confidence: 99%

Improvement of mechanical properties of bio-concrete using Enterococcus faecalis and Bacillus cereus

Alshalif

Juki

Othman

et al. 2019

Environmental Engineering Research

View full text Add to dashboard Cite

The present study aimed to investigate the potential of Enterococcus faecalis (E. faecalis) and Bacillus cereus (B. cereus) in improving the properties of bio-concrete. E. faecalis and B. cereus strains were obtained from fresh urine and an acid mire water at cell concentration of 1.16×10 12 and 1.3×10 12 cells mL-1 , respectively. The bacterial strains were inoculated in a liquid medium into the concrete with 1, 3 and 5% as replacement of water cement ratio (w/c). The ability of E. faecalis and B. cereus cells to accumulate the calcite and the decrement of pores size within bio-concrete was confirmed by SEM and EDX analysis. The results revealed that E. faecalis exhibited high efficiency for increasing of compressive and splitting tensile strength than B. cereus (23 vs. 14.2%, and 13 vs. 8.5%, respectively). These findings indicated that E. faecalis is more applicable in the bio-concrete due to its ability to enhance strength development and reduce water penetration.

show abstract

Section: -mentioning

confidence: 99%

Improvement of mechanical properties of bio-concrete using Enterococcus faecalis and Bacillus cereus

Alshalif

Juki

Othman

et al. 2019

Environmental Engineering Research

View full text Add to dashboard Cite

show abstract

“…Journal of the Ceramic Society of Japan 127 [8] 551-563 2019 JCS-Japan was determined that the product was calcium carbonate crystal (2ª µ 29.6°), 27), 28) and also ammonium gypsum had been found in the range of 5 to 10 mm. In the aeoliansand powder concrete within the range of 0 to 5 mm, the clustered-column calcium carbonate crystal was observed to be aggregated into a prism-shape, and fibrous products were also found in the range of 5 to 10 mm.…”

Section: Fesem and The Analysis Of The Xrd Test Resultsmentioning

confidence: 99%

A Study of the deterioration law and mechanism of aeolian-sand powder concrete in the coupling environments of freeze-thaw and carbonization

Shen

2019

J. Ceram. Soc. Japan

View full text Add to dashboard Cite

In this study, aeolian-sand powder was used for replacing cement-based gelling material in order to prepare aeolian-sand powder concrete in C25 and C35 strength grades. Through relative dynamic elastic modulus and carbonization depth changes, the deterioration laws of the aeolian-sand powder concrete under the coupling effects of freeze-thaw + carbonization and carbonization + freeze-thaw were studied. Then, field emission scanning electron microscopy, X-ray diffraction, and nuclear magnetic resonance porosity measurement technology were applied to analyze the microstructure, hydration products, and porosity changes. The results show that the Carbonation Mechanism of aeolian sand powder concrete is different from that of ordinary concrete. The carbonation of ordinary concrete results in calcium carbonate, and the carbonation of aeolian sand powder concrete results in calcium sulfate and calcium carbonate; The decrease of relative dynamic elastic modulus of aeolian sand powder concrete under freeze-thaw and carbonation environment is lower than that of ordinary concrete, and the results indicated that the relative dynamic elastic modulus of the aeolian-sand powder concrete under the freeze-thaw + carbonization effects was higher than that under the carbonization + freeze-thaw effects by 1.5 times. Also, the carbonization depth was less than that under the carbonization + freeze-thaw effects by 5.0%. Under the freeze-thaw + carbonization effects, the internal harmless pores of the aeolian-sand powder concrete were higher than carbonation + freeze-thaw by 16.85%, higher than those of the ordinary concrete by 15.35%, the multi-harm pores were observed to be less than that of carbonization + freeze-thaw by 22.5%, which is lower than that of ordinary concrete by 22.25%. At the same time, the irreducible fluid saturation and permeability of aeolian sand powder concrete are 0.34 and 1.5% higher than those of ordinary concrete under the action of carbonization and freeze-thaw, thus the deterioration of aeolian sand powder concrete is significantly lower than that of ordinary concrete, while that of aeolian sand powder concrete under the action of carbonization and freeze-thaw is significantly higher.

show abstract

“…In studies with regard to bacterial self‐healing in cementitious materials, the viability of bacteria can be tested beforehand, prior to healing in situ and next to the already mentioned microscopic analysis. The crystallization by means of bacteria can be studied by means of SEM, CT, X‐ray diffraction (XRD), and thermogravimetric analysis (TGA) on the obtained material . In this way, one can be certain whether or not the bacteria are able to precipitate the wanted crystals, when exposed to similar environmental conditions as compared to the application in the construction material.…”

Section: Techniques To Study the Sequestered Healing Agentmentioning

confidence: 99%

“…XRD measures the angles and intensities of diffracted incident X‐ray beams to determine the molecular structure of a crystal. The qualitative analysis of the obtained phases can be done by means of Rietveld refinement . FTIR studies the absorbed or emitted light in a material in a wide spectral range to determine the composition of the material.…”

Section: Healing Efficiencymentioning

confidence: 99%

See 1 more Smart Citation

Validation of Self‐Healing Properties of Construction Materials through Nondestructive and Minimal Invasive Testing

Snoeck

Malm

Cnudde

et al. 2018

Adv Materials Inter

View full text Add to dashboard Cite

When studying the self‐healing properties of construction materials, a plethora of destructive and nondestructive testing (NDT) techniques can be used. In this review, the applicability of different nondestructive test methods is discussed in detail. The methods can be categorized whether they are used to study the encapsulation and/or protection mechanism of the healing agent, the sequestered healing agent itself, the distribution of healing agents, the trigger mechanism for healing, the healing efficiency, or healing performance. Based on this categorization, nondestructive techniques found in literature are discussed. In this way, a robust understanding of the different techniques can be used for future research on self‐healing construction materials.

show abstract

Impact of air entraining admixtures on biogenic calcium carbonate precipitation and bacterial viability

Cited by 74 publications

References 26 publications

Improvement of mechanical properties of bio-concrete using Enterococcus faecalis and Bacillus cereus

Improvement of mechanical properties of bio-concrete using Enterococcus faecalis and Bacillus cereus

A Study of the deterioration law and mechanism of aeolian-sand powder concrete in the coupling environments of freeze-thaw and carbonization

Validation of Self‐Healing Properties of Construction Materials through Nondestructive and Minimal Invasive Testing

Contact Info

Product

Resources

About