| abstract |
The present invention provides an additive for hydraulic compositions, which is added to a hydraulic composition to reduce the change in fluidability of the hydraulic composition over time regardless of the temperature of the use of the hydraulic composition, enable the proper control of the amount of air, and prevent the undue delay of the setting time of the hydraulic composition.　Provided is an additive for hydraulic compositions, characterized by comprising a specific component A, a specific component B, and at least one component selected from a specific component C and a specific component D. |