Comparative Study on the Compressive Strength of Bacterial Concrete using Spirulina and Bacillus Subtilis

Authors

  • Sridevi M Muffakham Jah College of Engg & Tech.

DOI:

https://doi.org/10.3759/rtcet.v8i2.801

Keywords:

Spirulina, Subtilis, bacteria, concrete, CaCO3

Abstract

The bacterial concrete has remarkable advantages over ordinary concrete in self-repairing itself when cracked, and it proves to be an environmentally safe building material to be used. The objective of the present study is to investigate the feasibility of using Spirulina in bacterial concrete. A comparative study on the compressive strength of M30 grade of concrete using Spirulina and Bacillus Subtilis (B.Subtilis) were carried out. Volume of Spirulina and B.Subtilis culture used in the concrete were in the order of 5ml, 10ml, 15ml, 20ml and 25ml. Calcium chloride (CaCl2) was used as a nutrient for both Spirulina and B.Subtilis. About 10 ml of CaCl2 was used in each mix. Reference cubes were also casted without the addition of bacteria in the concrete. The increase in compressive strength at 7 and 28 days were found to be 28.53% and 17.21% respectively using Spirulina and 33.99% and 24.67% respectively using B.Subtilis when compared to concrete without bacteria. This study is an initiative to use Spirulina in bacterial concrete. Further studies on the durability aspects of concrete using Spirulina can be done as it is a known non-pathogenic cyanobacterium or algae.

Author Biography

  • Sridevi M, Muffakham Jah College of Engg & Tech.

    Assistant Professor

    Dept. of Civil Engg

References

Vijeth N Kashyap and Radhakrishna, A study on effect of bacteria on cement composites, IJRET, IC-RICE Conference Issue, Nov 2013, 356-360p.

Srinivasa Reddy, Achyutha Satya K, Seshagiri Rao M V et al. A biological approach to enhance strength and durability in concrete structures, IJAET, Sept 2012, 4(2): 392-399p.

Rishiram Ramanan, Krishnamurthi Kannan, Ashok Deshkar, et al. Enhanced algal CO2 sequestration through calcite deposition by chlorella sp. and Spirulina platensis in a mini-raceway pond, Bioresource Technology, April 2010; 101 (8): 2616-2622p.

Pradeepkumar A, Akila Devi, Anestraj S, et al. An experimental work on concrete by adding bacillus subtilis, IJETE, April 2015; 2(4): 69-73p.

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Published

2018-07-17

Issue

Vol. 8 No. 2 (2018)

Section

Research Article

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