EXPERIMENTAL INVESTIGATION ON STRENGTH ASPECTS OF BACTERIAL CONCRETE

Authors

  • PALLAVI KUDATARKAR CIVIL ENGINEERING, KLE Dr. MS Sheshgiri college of Engineering and Technology, Belagavi
  • MAHALAXMI M. M CIVIL ENGINEERING, KLE Dr. MS Sheshgiri college of Engineering and Technology, Belagavi
  • VINOD RADDY CIVIL ENGINEERING, KLE Dr. MS Sheshgiri college of Engineering and Technology, Belagavi
  • MADAN S. H CIVIL ENGINEERING, KLE Dr. MS Sheshgiri college of Engineering and Technology, Belagavi
  • Prof. TEJAS DOSHi CIVIL ENGINEERING, KLE Dr. MS Sheshgiri college of Engineering and Technology, Belagavi

Keywords:

Bacterial concrete ,bacillus sphaericus, 0%,20%,30%GGBS(Ground Granulated Blast Furnace Slag), Compressive strength, Cell Concentration (0,105 ,107 ) cells/ml, Reference Mix, Scanning Electron Microscopy, Normal Concrete

Abstract

Concrete is the primary construction and repair material of many structural systems. Today, many of the concrete structures,
which have been exposed to aggressive environments, suffer from durability problems and fail to fulfill their design service life
requirements. The problem is particularly serious in reinforced concrete structures where corrosion of reinforcing steel can
impair their safety. The cost of the repair and rehabilitation of corrosion-damaged structures constitutes a large portion of the
infrastructure expenditure. The limited knowledge of the field performance of corrosion damaged structures and the lack of
systematic approaches for their inspection, maintenance and repair contribute to the increase of their life-cycle costs, and result
in the loss of functionality and safety. A promising sustainable repair methodology based on application of mineral producing
bacteria in cement/concrete is currently being investigated.
The main aim of this experimentation is to study the effect of the influence of Bacillus Sphaericus bacteria on the strength
properties of normal and GGBS concrete. In GGBS concrete cement was replaced with two percentages (20% and 30%) with
GGBS by weight. Different cell concentrations (0, 105, 107cells/ml) of bacteria were used in making the concrete mixes. Tests
were performed for different strength properties at the age of 28 days. Test results indicated that inclusion of Bacillus sphaericus
in normal and GGBS concrete enhanced the different strength properties of concrete. Maximum increase in compressive strength,
split tensile strength, flexural strength, was observed with concentration 105 cells/ml of bacteria. This improvement in strength
was due to deposition on the bacteria cell surfaces within the pores. The present work highlights the influence of bacteria on the
properties of concrete made with supplementing cementing material like GGBS. Usage of bacteria like Bacillus sphaericus
improves strength of normal and GGBS concrete through self-healing effect.

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Published

2015-06-25

How to Cite

PALLAVI KUDATARKAR, MAHALAXMI M. M, VINOD RADDY, MADAN S. H, & Prof. TEJAS DOSHi. (2015). EXPERIMENTAL INVESTIGATION ON STRENGTH ASPECTS OF BACTERIAL CONCRETE. International Journal of Advance Research in Engineering, Science & Technology, 2(6), 112–117. Retrieved from https://ijarest.org/index.php/ijarest/article/view/224

Issue

Vol. 2 No. 6 (2015): Volume: 02, Issue: 06 - June, 2015

Section

Articles