MARKSPEED ACL-30 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. MARKSPEED ACL-30 is a chloride free product.
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 demoulding from framework
- Allows earlier release from precast moulds
- Structural concrete
- Concrete blocks
- Concrete pipes
- Precast items
- Cold weather masonry work for use in stucco, brick laying, blocks and clay tiles laying mortars
|Nature||Single component, liquid|
|Color||Off white color to pale pink|
|Relative density at 250C||1.290 ± 0.02gms/cc|
|PH Value||Min. 6|
- IS: 9103 Accelerating admixture
- BS: 5075 PART 1
- ASTM: C–494, Type–C
DIRECTIONS FOR USE
METHOD FOR USAGE
It can be used with all type of standard cements. It is compatible with all other MarkChem Chemicals admixture in the same concrete mix. MARKSPEED ACL-30 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 at least a minute after addition of MARKSPEED ACL-30. Thus the admixture should be added to the concrete separately with the mixing water & should not be directly mixed together prior to addition.
For accelerating from 00C. To150C add 300g 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 MARKSPEED ACL-30 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 MARKSPEED ACL-30 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, contact our technical service department.
An overdose of this further accelerates the set rate of concrete but does not affect the ultimate strength of concrete.
Good curing practices should be maintained such as water spray wet hessian or curing with spray applied curing compounds
CLEANING OF TOOLS AND EQUIPMENTS
Tools and equipment’s can be easily cleaned with water. Skin contact should be avoided as it is slightly acidic & seek medical advice.
STORAGE AND SHELF LIFE
Store the material cool and dry place (250C. Temp). Shelf life is one year when materials are stored in unopened containers as per recommended storage conditions.
50 Kg and 250 Kg Barrel
- Do not mix with dry cement
- Add to mixing water only
- Stir well before use
DISCLAIMER Download PDF
The above information and details herein are based on the tests conducted & experience on application and usage. The user is advised to carry out the test and take trials to satisfy on the suitability of the products and meeting his requirement considering the prevailing conditions prior to apply/ using it on larger area. As the conditions under which the products are used or transported are beyond our control. We would not hold ourselves responsible on its consequential nonperformance.