Behaviour of Bacterial Concrete
Journal: International Journal of Science and Research (IJSR) (Vol.5, No. 8)Publication Date: 2016-08-05
Authors : S. Siddiraju; N. Ganesh Babu;
Page : 1376-1380
Keywords : Bacteria; Cracks; Calcium lactate; alkaline environment; Bacillus pasteurii;
Abstract
Concrete is the most commonly used building material, but the cracks in concrete create problem. Cracks in concrete occur due to various mechanisms such as shrinkage, mechanical compressive and tensile forces. Cracking of the concrete surface may enhance the deterioration of embedded steel bars as ingression rate of corrosive chemicals such as water and chloride ions in to the concrete structure increased. Therefore a novel technique has been developed by using a selective microbial plugging process, in which microbial metabolic activities promote calcium carbonate (calcite) precipitation, this technique is referred as Microbiologically Enhanced Crack Remediation. In this technique urolytic bacteria are used hence the concrete is called Bacterial concrete. The percentages of bacteria selected for the study are 3.5 % and 5 % by weight of cement. In addition, calcium lactate was used at 5 % and 10 % replacement of cement by weight. Varieous tests such as compressive strength, elastic modulus and fracture properties of concrete were analyzed in this study.
Other Latest Articles
- Accelerated Partial Breast Irradiation Versus Traditional Whole Breast Ir-radiation in Early Stage (I and II) Breast Carcinoma
- Attrition Prediction Using Machine Learning to Help in Astute Decision
- Multigrain Healthy Cookies for Diabetes Mellitus
- Mathematical Model of Minimal Repair for Excess Diuresis and Natriuresis during Acute Sleep Deprivation in Healthy Adults
- Anticipated Impacts of Virtual Brain Adoption on Humanity
Last modified: 2021-07-01 14:42:41