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A platform for research: civil engineering, architecture and urbanism
Regression analysis of properties of GGBS based bacillus subtilis bacterial concrete
This study aimed to examine the effects of replacing a portion of cement with GGBS and including a bacillus subtilis bacterial solution at the most effective GGBS usage levels. The development of M25 grade concrete involved the utilization of four different quantities of GGBS (namely, 5%, 10%, 15%, and 20%) as substitutes for cement. The bacterial solution was prepared using three different quantities of bacteria, specifically 103, 105, and 107 cells/ml. This bacterial solution was used to replace 10% of the mixing water. The mechanical properties of concrete produced alone with GGBS and with the addition of a bacterial solution were examined. Furthermore, the water absorption of the samples was also assessed under both conditions. The test results indicate that a bacterial concentration of 105cells/ml in 10% GGBS leads to the highest mechanical strength. When the proportion of GGBS in concrete exceeded 10%, the strength began to decrease. The presence of bacteria in the concrete led to a decrease in its water absorption capacity. Consequently, regression analysis revealed a higher R2 values for bacterial GGBS concrete in comparison to GGBS concrete. R2 value for GGBS sample and bacterial solution were 0.771 and 0.818.
Regression analysis of properties of GGBS based bacillus subtilis bacterial concrete
This study aimed to examine the effects of replacing a portion of cement with GGBS and including a bacillus subtilis bacterial solution at the most effective GGBS usage levels. The development of M25 grade concrete involved the utilization of four different quantities of GGBS (namely, 5%, 10%, 15%, and 20%) as substitutes for cement. The bacterial solution was prepared using three different quantities of bacteria, specifically 103, 105, and 107 cells/ml. This bacterial solution was used to replace 10% of the mixing water. The mechanical properties of concrete produced alone with GGBS and with the addition of a bacterial solution were examined. Furthermore, the water absorption of the samples was also assessed under both conditions. The test results indicate that a bacterial concentration of 105cells/ml in 10% GGBS leads to the highest mechanical strength. When the proportion of GGBS in concrete exceeded 10%, the strength began to decrease. The presence of bacteria in the concrete led to a decrease in its water absorption capacity. Consequently, regression analysis revealed a higher R2 values for bacterial GGBS concrete in comparison to GGBS concrete. R2 value for GGBS sample and bacterial solution were 0.771 and 0.818.
Regression analysis of properties of GGBS based bacillus subtilis bacterial concrete
Asian J Civ Eng
Singh, Hanumant Sharan (author) / Shukla, Gaurav (author)
Asian Journal of Civil Engineering ; 25 ; 4461-4469
2024-09-01
9 pages
Article (Journal)
Electronic Resource
English
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