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Table 3 Initial and extended service life and their COV with different repair technique.

From: Probabilistic Repair Cost Simulation for RC Structures Repaired With Bacteria Coating Material Under Sulfate Attack

N = 1000 Concrete Normal repair Bio-slime
294.4 $/m 197.8 $/m
Service life Average COV Average COV Average COV
200 ppm 21.33 0.19 6.24 0.27 15.65 0.25
120 ppm 35.71 0.18 10.36 0.25 25.30 0.17