| dc.description.abstract | My thesis project aimed to investigate the potential of ureolytic bacteria, which
were isolated from soil near the Rock lakes in the National University area, in bioconsolidation, to improve the strength of concrete in particular.
Two strains of bacteria, O1 and O2, were chosen based on their ability of inducing
calcium precipitation and EPS extraction compared with three other strains which
were N3, N4 and N5. The amount of calcium precipitate induced by O1 and O2
strains were estimated at 56% and 50%.
Then, evaluate the effect of different pH values and Calcium concentration to the
improvement of concrete strength. As the result, at the condition of pH = 8 and
calcium concentration 1.1 M seemed to give the best performance of strength
improvement. | en_US |
