Set-Control Additives-capcoset® Sprayset

Accelerating Admixture for Shotcrete / Powder (CapcoShot Sprayset)

CapcoShot Sprayset is an Accelerating Admixture for Shotcrete/powder that is used to implement shotcrete. This admixture significantly accelerates the first setting time of the concrete by accelerating the cement hydration reaction.

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This product is produced based on the general requirements of Table 2 of the Iran National Standard No. 2930-5. Also, this admixture meets the requirements of the EN 934-5 standard.

The advantages of using the CapcoShot Sprayset in concrete:

• Accelerating the hydration reaction
• Accelerating the initial and final setting time of the concrete significantly
• Increasing the cohesion of shotcrete components while implementing

The usage of the CapcoShot Sprayset in shotcrete

• The implementation of any spraying concrete (Shotcrete) operation in tunnels, and inclined planes, and resolving the raveling and wet soils.

Range and Method of Using the CapcoShot Sprayset in Concrete:

Permissible Range for Using the CapcoShot Sprayset in Concrete:

The allowable range for using The CapcoShot Sprayset is from 2% to 7% of the cement material weight (2 to 7 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.

How to Mix the CapcoShot Sprayset 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 water 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 without the admixture and the powder is then mixed with the concrete or mortar at the end of the nozzle of the spray pump.

Physical and Chemical Specifications of the CapcoShot Sprayset:

Physical state: Powder
Color: White
Bulk density: 0.82 ± 0.01 g/cm³
Chloride content: Negligible
Equivalent alkali content: > 50%
pH > 13

Safety Precautions When Using the CapcoShot Sprayset:

• Blink in water for at least 15 minutes in case of eye contact
• Wash your skin with clean water for 15 minutes in case of any contact with the skin
• The contaminated clothes must be washed with suitable detergents to be usable for further work.
• Using the product in the enclosures should be provided with suitable ventilation, and it is necessary to breathe the fresh air outside if the individual feels uncomfortable while breathing.

Set-Control Additives-capcoset® Sprayset

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