Features / Advantages
- Prevent the delay of construction jobs in cold weather.
- Reduces initial setting time of concrete.
- Increases strengths of concrete and mortar.
- Improves workability of the concrete.
- It minimizes bleeding of water in concrete mix.
- It densities the concrete and mortar.
- It provides high early strength for fast demoulding from framework.
- Does not corrode steel reinforcement.
- Non-toxic
Typical Applications
- Structural concrete.
- Concrete Blocks.
- Concrete pipes.
- Precast items
- Cold weather masonry work for use in stucco, brick laying, blocks and clay tiles laying mortars.
Engineering Data
Specification Complies
|
|
Indian Standard Specification IS:9103-1999
British Standard Specification BS:5075 Part I
American Standard Testing Materials ASTM-C-494, Type C & E |
Setting time, Initial
Hours Final |
|
Control Mix
3-4 5-6
5-6 6-7 |
| Compressive strengths % Control |
|
3 days – 110%
7 days – 110%
28 days- 110% |
| Drying Shrinkage, Average 3 hours |
|
0.030% max. increase |
Direction for use
Dosage
For accelerating setting from 0C. to 15C, add 800 cc per 50 kgs bag of a cement to the concrete.
Dose may be increased or decreased depending upon the acceleration at the site and any other special job conditions.
For temperatures above 15C. reduce the dose to half quantity.
Add Masterspeed-ACL to mixing (gauging) water and not to the dry cement. Mix it homogeneously.
Concrete should be discharged from truck within 1 hour.
Cleaning of Tools & Equipments
Tool and equipments can be easily cleaned with water.
Storage & Shelf Life
Store the material at Cool & Dry place (25C. temp. & 50% RH). Shelf life is two years when materials are stored in unopened containers as per recommended storage conditions.
Packing
1 ltr., 5 ltrs., 20 ltrs., 200 ltrs.
Precautions
Do not mix it with dry cement.
Add to mixing (gauging) water only.
Stir well before use. |
