Description
Typical Properties
| Appearance | Powder |
|---|---|
| Apparent Density | 1.4 gm/cc |
| Grain Size | 0.4mm 1.2mm |
| Adhesion on – Concrete | 26.8 Bar |
| Color | Grey |
| Expansion Period | 120 Minutes |
| Expansion | Max 2.2% @ |
| Characteristics | 24 Hours |
Uses
- Repair to pre-cast concrete
- Bedding bearing plates and grouting
- Floor repairs and toppings
- Heavy machinery and equipment foundations
- Pre-fabricated unit joints and cable grouting
Bond to Steel
The bond of RAK NS Grout to steel, calculated by applying loads to the bars undergoing pull-out tests and by the grout steel contact surface is:
For plain bars: 3 N/mm at 7 days, 4 N/mm at 28 days
For deformed bars: 20 N/mm at 7 days, 30 N/mm at 28 days
Resistance to High Temperature
RAK NS Grout can withstand high temperature (+400°C) for very long periods without deteriorating substantially.
Resistance to Chemical Attack
RAK NS Grout is watertight and is protected against environmental aggressive agents in solution.
Application
Mix the powder with measured quantity of water for a minimum of 5 minutes to obtain a smooth, uniform lump free consistency. Approximately 5-6 liters of water is needed for 25 kg of powder. Pour the grout continuously to eliminate air pockets. For a thick consistency, 4-5 litres of water should be used and for dry packs 2.5 – 3 liters of water should be used.
Support
Supports should be sound, clean and free of dust, demoulding materials, oil, paint, etc. Clean the area to be grouted with water 24 hours prior to grouting. The surface should be damp but strictly free of standing water. The bolt holes and other areas should be water free. Bare plates, bolts, etc. must be clean and free of oil, grease paint, etc. The form works should be leak proof.
Cleaning
Tools should be cleaned with water.
Compressive Strength
N/MM2AT 20°C (BS/1881 Pt 116-1983)
Day
| 1 | 28 |
|---|---|
| 7 | 57 |
| 28 | 65 |
Flexural Strength
N/MM2AT 25°C (BS-4551 1980)
Day
| 1 | 5.2 |
|---|---|
| 7 | 8.7 |
| 28 | 10.8 |
Storage
RAK NS Grout should be stored in dry premises, away from direct sunlight, wind and humidity.
Health & Safety
As with all chemical products, caution should always be exercised. Protective clothing, such as gloves and goggles, should be worn (see packaging for specific instructions). Treat any splashes to the skin or eyes with fresh water immediately. Should any of the product be accidentally swallowed, do not induce vomiting but call for medical assistance immediately. Ensure the container is available for the medical attendant to examine any relevant instructions and contents details. Reseal all containers after use and ensure product is stored as instructed on the safety section of the labelling.
