Permissible Range for Using the CapcoShot Liqurete in Concrete:
The allowable range for using The CapcoShot Liqurete is from 2% to 8% of the cement material weight (2 to 8 kg per 100 kg of cement material weight including cement, silica fume, slag, fly ash, and other similar pozzolans). The temperature at the time of concrete casting and after that, the concrete mix design, the thickness, and the volume of the concrete section are the main indices to determine this admixture. Specifying the optimum amount of this admixture is accomplished by considering the aforementioned indices and the required test in the laboratory and field evaluation.
It is also recommended to use the water-reducing admixture to reduce the water-to-cement ratio to increase the 28-day compressive strength.
How to Mix the CapcoShot Liqurete with concrete:
This admixture can be used in two different ways:
- Dry shotcrete: in this method, other components of the concrete are mixed without water and admixture and are sprayed out using the air pressure by a spray device. The resulting mixture is then mixed with the combination of water and the accelerating admixture when released from the nozzle and is sprayed on the desired surface as mortar or concrete.
- Wet shotcrete: in this method, the concrete or mortar is made with water and the admixture is then mixed with the concrete or mortar at the end of the nozzle of the spray pump.
Note: With respect to accelerating the setting time of the concrete when adding this admixture, it is better not to use a large amount of this admixture without carrying out the concrete setting time test in the truck mixer or concrete mixer. Besides, the FiberCap 12 can be used along with this admixture in the mix design to reduce the risk of surface cracking.
