Permissible Range for Using the CapcoPlast AL212 in Concrete:
The allowable range for using The CapcoPlast AL212 is from 0.8% to 1.5% of the cement content (800 to 1500 grams per 100 kg of cement content including cement, silica fume, slag, fly ash, and other similar pozzolans). Specifying the optimum amount of the admixture should be accomplished with respect to the properties of the mix design and the implementation and weather conditions, and finally making the test mixes. The excessive use of admixture may result in the separation of components and concrete bleeding, specifically for the concrete containing slow-setting cement.
How to Mix the CapcoPlast AL212 with concrete:
To use the admixture, it is necessary to dilute the admixture with water twice the volume of the admixture and add it to the concrete that has reached the initial slump of 5 to 8 cm. It is also necessary to take the following notes into consideration:
- Mix the concrete for 2 to 5 minutes after adding the admixture and assure the uniform distribution of the admixture in the concrete.
- Avoid the direct contact of the admixture with the dry cement and aggregates
- Subtract the water used to dilute the admixture and the water as much as the admixture volume (Before adding to the concrete) from the mixing water of the concrete.
- In case of increasing the slump of the fresh concrete it is necessary to obtain the mix design in a way that does not result in separation of the components and concrete bleeding.
