Admix AC470

Applications notes
It is always recommended to use fresh cement, old cements may affect setting properties of concrete. The product is sensitive to cement, setting time will extend with some types of cement. Use of Portland cement type 2 is recommended as it has faster setting time comparing to others such as sulfate resistance or pozzolanic cements. ADMIX AC470 has good reaction with mixed cements containing fly ash and slags, but trial is advised before batching for determining setting time and 24 hours compressive strength.

Mix design
In wet shotcrete mix design containing ADMIX AC470 as accelerator, water cement (total cementitious materials) ratio should be less than 50% or even less than 45%. When high early strength is the aim, water cement ratio of 40% or less should be considered. Lower water cement ratio causes faster setting time, less accelerator consumption and thicker layer applications.

Dosages
Proper dosage can be determined by trials for each project and can’t be generalized to other projects. Tested dosage is between 2 to 7 percent of cementitious materials depending on expected setting time, type of cement and water cement ratio.

Packaging
ADMIX AC470 is supplied in 30 kg containers and 250 kg drums. Bulk delivery is possible based on request.

Storage
This product must be stored in original containers at above +5 C° under cover, out of direct sunlight and protect from extremes of temperature. Shelf life is 12 months. Failure to comply with the recommended storage conditions may result in premature deterioration of the product or packaging. For specific storage condition contact White Damavand Technical Services Department.

Safety awareness:
ADMIX AC470 contains alkali materials. Use personal safety devices while using this material. For more information about safety, please read product material safety data sheet.