| 摘要 |
PURPOSE: Provided is an antibacterial agent for concrete, which has excellent antibacterial effect against bacteria causing corrosion of concrete, particularly sulfur oxidization bacteria, sulfur reduction bacteria and carboxylic acid-generating bacteria. Also, provided are a concrete composition and a concrete product. CONSTITUTION: The antibacterial agent for concrete comprises a silver compound, a copper compound and an ion-retaining compound. Particularly, the silver compound is at least one selected from the group consisting of silver carbonate, silver oxide and silver phosphate. The copper compound is at least one selected from the group consisting of copper carbonate, copper oxide, copper phosphate and copper hydroxide. The ion-retaining compound inhibits dissolving-out of useful silver and copper components.
|
