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It suppresses Thiobacillus spp causing concrete corrosion.
Further, it will neutralize various bacteria harmful to human health.
Zeomighty is designed to suppress the propagation of sulfur oxidizing bacteria (Thiobacillus spp) causing concrete corrosion by neutralize them. Further, Zeomighty containing more than one active ingredient with powerful antimicrobial power is also effective against various bacteria harmful to human health including Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa, thus contributing to hygiene management.
Antimicrobial performance of Zeomighty's active ingredients
Unit: ppm (0.0001%), Measurement method: Japanese Society of Chemotherapy standard method
| Bacteria type | MIC(ppm) | |
|---|---|---|
| Thiobacillus spp | They cause concrete corrosion through the generation of sulfuric acid in the course of their propagation. | 50 |
| Escherichia coli | They are bacteria inhabiting in the human intestine and used as a index of the contamination of food. | 250 |
| Staphylococcus aureus | They are aerobic bacteria resistant to a high concentration of sodium chloride and known as pathogenic bacteria causing food poisoning. | 500 |
| Pseudomonas aeruginosa | They can cause the putrefaction of food and are pathogenic to humans and animals. | 500 |
| Bacillus cereus | They are saprophytic bacteria found widely in soil, on plants and in air and can cause food poisoning. | 500 |
MIC(Minimum Inhibitory Concentration): it means a minimum concentration of an antimicrobial required to inhibit the propagation of microorganisms, and the above stated values indicate that Zeomighty's active ingredients are practically effective.
Electron microscopic photo showing Zeomighty distribution
 |  |
|---|---|
Without Zeomighty | With Zeomighty |
The following are test data showing the antimicrobial power of concrete products containing Zeomighty.
The evaluation test was performed with the following steps: test pieces were prepared by adding Zeomighty to the mortar or cement to a final concentration of 0.5% or 1%. After neutralization the test pieces were immersed in liquid culture media prepared for the propagation of Thiobacillus spp bacteria. Bacterial counts and pH of the liquid culture medium were measured until the 21st day.
Test results showing antimicrobial effect of Zeomighty-added concrete products were amazing ones and from data measured in this test, it was deduced that the optimum addition rate of Zeomighty to concrete products was around 1 wt% of the cement quantity (including expander, slag, etc.).
 |  |
|---|---|
Changes in Thiobacillus spp bacteria | Changes in pH |