USE OF MICROBIAL CALCITE PRECIPITATION FOR THE IMPROVEMENT OF STRENGTH AND DURABILITY OF CONCRETE

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

FARMANI F.; BONAKDARPOUR B.; RAMEZANIANPOUR A.A.; NIKRAVAN M.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Seminar Paper

Paper Information

Seminar: CHEMICAL ENGINEERING CONGRESS AND EXHIBITION
Year:2014 | Issue:8

Download Full-Text

View:

177

Download:

107

Information Seminar Paper

Title

USE OF MICROBIAL CALCITE PRECIPITATION FOR THE IMPROVEMENT OF STRENGTH AND DURABILITY OF CONCRETE

Author(s)

FARMANI F. | BONAKDARPOUR B. | RAMEZANIANPOUR A.A. | NIKRAVAN M. | Issue Writer Certificate

Keywords

CALCITE PRECIPITATION

CONCRETE

UREASE ACTIVITY

WATER ABSORPTION

SPOROSARCINA PASTEURII

Abstract

CRACK IN CONCRETE IS THE MOST IMPORTANT FACTOR CONTRIBUTING TO THE REDUCTION OF THE SERVICE LIFE OF CONCRETE STRUCTURES. COMPARED TO SYNTHETIC POLYMERS WHICH MIGHT BE HARMFUL TO THE ENVIRONMENT, BACTERIAL CACO3 PRECIPITATION IS MORE COMPATIBLE WITH THE CONCRETE MATRIX AND IS AN ENVIRONMENTALLY FRIENDLY CONCRETE REPAIR TECHNIQUE. THE BACTERIAL DEGRADATION OF UREA PROMOTES THE MICROBIAL DEPOSITION OF CARBONATE AS CALCIUM CARBONATE IN A CALCIUM RICH MEDIA AND THESE PRECIPITATED CRYSTALS ARE ABLE TO FILL THE CRACKS IN THE CONCRETE. IN THE PRESENT STUDY, THE TECHNIQUE OF MICROBIAL CALCITE PRECIPITATION WAS CONSIDERED FOR THE IMPROVEMENT OF THE STRENGTH OF CONCRETE AND REDUCTION OF ITS SORPTIVITY COEFFICIENT. BIOLOGICAL TREATMENT USING SPOROSARCINA PASTEURII CELLS IN MORTAR CUBES SHOWED AROUND 17% IMPROVEMENT IN COMPRESSIVE STRENGTH WITH RESPECT TO CONTROL SPECIMENS. BIOLOGICAL CALCIUM CARBONATE COATING RESULTED IN A SIGNIFICANT DECREASE OF THE WATER UPTAKE COMPARED TO CONTROL SPECIMENS. SEM ANALYSIS CONFIRMED THE PRESENCE OF CALCITE INDUCED BY BACTERIA.

Multimedia

No record.

Cites

No record.

References

No record.

Cite

APA: Copy

FARMANI, F., BONAKDARPOUR, B., RAMEZANIANPOUR, A.A., & NIKRAVAN, M.. (2014). USE OF MICROBIAL CALCITE PRECIPITATION FOR THE IMPROVEMENT OF STRENGTH AND DURABILITY OF CONCRETE. INTERNATIONAL CHEMICAL ENGINEERING CONGRESS AND EXHIBITION. SID. https://sid.ir/paper/916210/en

Vancouver: Copy

FARMANI F., BONAKDARPOUR B., RAMEZANIANPOUR A.A., NIKRAVAN M.. USE OF MICROBIAL CALCITE PRECIPITATION FOR THE IMPROVEMENT OF STRENGTH AND DURABILITY OF CONCRETE. 2014. Available from: https://sid.ir/paper/916210/en

IEEE: Copy

F. FARMANI, B. BONAKDARPOUR, A.A. RAMEZANIANPOUR, and M. NIKRAVAN, “USE OF MICROBIAL CALCITE PRECIPITATION FOR THE IMPROVEMENT OF STRENGTH AND DURABILITY OF CONCRETE,” presented at the INTERNATIONAL CHEMICAL ENGINEERING CONGRESS AND EXHIBITION. 2014, [Online]. Available: https://sid.ir/paper/916210/en

Related Journal Papers

No record.

Related Seminar Papers

No record.

Related Plans

No record.

Recommended Workshops