Applications
Concrete using MIRA AF6002 can now perform to extreme workability characteristics for high slump; and especially ideal for use in any concrete where it is desired to keep the water-cement ratio to a minimum and still achieve the degree of workability necessary to provide easy placement and consolidation. In the case of tremie concreting or other applications where high middle slump are desired, the addition of MIRA AF6002 will fluidise concrete.
Product Advantages
- Long slump life with controlled set times.
- High slump concrete less susceptible to segregation and bleeding.
- Highly efficient in producing high/middle slump concrete with no loss in strength.
- Easily added with the concrete mix water for rapid batching.
Addition Rates
Depending on the application, dosage rates can range from 200 to 1,500mL / 100kg of cementitious material. However, in most superplasticiser applications, 200 to 1,000mL / 100kg of cementitious material will be sufficient. For best results, MIRA AF6002 should be added with the mix water. At a given watercement ratio, the slump required for placement can be controlled by varying the addition rate. Should job site conditions require using more than recommended addition rates, please consult your local GCP Representative.
Compatibility with Other Admixtures
In concrete containing MIRA AF6002 the use of an air-entraining agent (such as DARAVAIR® or DAREX AEA® ) is recommended to provide suitable air void parameters for resistance against freeze-thaw attack. Due to synergistic effects between MIRA AF6002 and airentraining agents, the quantity of air-entraining admixture added to concrete containing MIRA AF6002 may be reduced. Please consult your GCP Representative for dosage guidance. Except naphthalenebased products, most water reducers or water-reducing retarders are compatible with MIRA AF6002 Superplasticiser as long as they are added separately to the concrete. Caution should be exercised when using MIRA AF6002 with a retarder, as excessive retardation can occur if the admixture dosages are too high. Pre-testing of the concrete should be performed to optimise dosages and addition times of these admixtures. The admixtures should not be in contact with each other before they enter the concrete.