Optimization of Self-Healing Concrete Parameters using Experimental Design Taguchi Method

Abstract The development of self-healing concrete (SHC) is intensively implemented to improve stability and reduce maintenance costs. However, the experiments require many parameter variations, increasing cost. Taguchi methods are used in experimental design obtain variations optimal parameters cost experiment. stages this study secondary data collection increase compressive strength, testing methods, determining contribution using ANOVA, developing estimated model. analyzed consist type, concentration, application bacteria, curing time conducted as analysis 2, 3, 4 parameters. results have variation a row Bacillus subtilis , 10 5 cells /ml, encapsulation 28 days. Bacterial concentrations very significant value with contributions 82.94%, 78.90%, 74.36% parameters, respectively. slightest error was obtained 3-parameter experiment 2.99%. SHC modelling two equations consisting direct mixing encapsulation, which coefficient determination 0.89 0.82.