DESCRIPTION
Prime Rapid AC-908 is a liquid accelerating admixture for cement concrete & mortar. It is designed to accelerate the normal setting time of concrete. It increases early strengths of concrete & mortars. It improves the physical & engineering properties of concrete such as workability. Compressive and flexural strengths. It densifies the concrete and reduces the permeability. In situations where there is a embedded steel or RCC or where high alumina cement is used or where steam curing is employed in such cases Prime Rapid AC-908 should not be used. In such cases use our product MarsPtelast ACPL which is chloride free.
FEATURES / ADVANTAGES
Prevent the delay of construction jobs in cold weather.
Reduces initial setting time of concrete.
Increases strength of concrete and mortar.
Improves workability of the concrete.
It densifies the concrete and mortar.
It provides high early strength for fast demolding from framework.
Allows earlier release from precast moulds.
Non toxic.
CHARACTERSTICS
Nature: Single component, liquid.
Color: Off white color.
Relative density at 25°C: 1.250 ±0.02 gms/c.c
pH Value: Min. 6.
ENGINEERING DATA
Specification complies:
IS: 9103 Accelerating admixture
BS: 5075 PART 1
ASTM: C – 494, Type – C
TYPICAL APPLICATIONS
Structural concrete
Concrete blocks
Concrete pipes
Precast items
Cold weather masonry work fourse in stucco, brick laying, block sand clay
tiles laying mortars.
DIRECTIONS FOR USE
METHOD OF USAGE
It can be used with all type of standard cements. It is compatible with all other Choksey Chemicals admixture in the same concrete mix. Prime Rapid AC-908 of required quantity should be added to part of gauging water before mixing with concrete made with remaining gauging water for better results. The concrete should be mixed for atleast a minute after addition of Master speed ACL . Thus the admixture should be added to the concrete separately with the mixing water & should not be directly mixed together prior to addition.
DOSAGE
For accelerating from 00C. to 150 C. Add 800cc per 50kg. Bag of cement to the concrete. Dose may be increased or decreased depending upon the acceleration needed at the site or any other special job conditions for temperatures above 150C. reduce the dose to half quantity add Prime Rapid AC-908 to mixing water and not to the dry cement. Mix it homogeneously. Concrete should be discharged from truck within 1 hour.
The optimum dosage and compatibility of Prime Rapid AC-908 with the locally available materials has to be ascertained by proper site trials using site raw materials. Because of variations in job conditions, concrete materials & climatic conditions dosage may vary in such cases.An overdoseof this furtheraccelerates the set rate of concrete but does not affect the ultimate strengthof concrete.
PACKING
1 L, 5 L, 20 L & 200 L containers as per requirements
CLEANING OF TOOLS AND EQUIPMENTS
Tools and equipment can be easily cleaned with water. Skin contact should be avoided as it is slightly acidic& seek medical advice.
PRECAUTION
Do not mix with dry cement
Add to mixing water only
Stir well before use
