Non Shrink Grout vs Cement Grout
Non shrink grout and cement grout are both used in construction for filling gaps and supporting structural elements, but their performance and applications are very different. Understanding the key differences between non shrink grout and cement grout helps in selecting the correct material for load-bearing and precision grouting works.
What Is Non Shrink Grout?
Non shrink grout is a specially formulated cementitious material designed to maintain or slightly increase its volume after setting.
- Compensates for shrinkage during curing
- Provides full contact with concrete and steel
- Develops high compressive strength
- Used in structural and load-bearing applications
What Is Cement Grout?
Cement grout is a simple mixture of cement, sand, and water commonly used for general filling and finishing works.
- Prone to shrinkage during curing
- Lower strength compared to non shrink grout
- Mainly used for non-structural applications
- Economical and easy to prepare on site
Key Differences Between Non Shrink Grout and Cement Grout
| Feature | Non Shrink Grout | Cement Grout |
|---|---|---|
| Shrinkage | Does not shrink after setting | Shrinks during curing |
| Compressive Strength | High strength | Moderate to low strength |
| Load Transfer | Excellent load transfer | Limited load transfer |
| Void Formation | No voids after curing | Voids may form due to shrinkage |
| Applications | Machinery bases, columns, anchor bolts | Minor filling and non-structural works |
Where Non Shrink Grout Is Preferred
Non shrink grout is used where precision and strength are critical.
- Machinery base grouting
- Column base plates
- Anchor bolts and dowels
- Structural load-bearing connections
Where Cement Grout Is Commonly Used
Cement grout is suitable for general, non-critical applications.
- Minor gap filling
- Non-structural repairs
- Tile and masonry grouting
- Low load areas
Which One Should You Choose?
The choice depends on application requirements.
- Choose non shrink grout for structural support and heavy loads
- Choose cement grout for light, non-structural works
- Do not substitute cement grout where non shrink grout is specified
Frequently Asked Questions (FAQ)
1. Can cement grout replace non shrink grout?
No, cement grout shrinks and is not suitable for load-bearing applications.
2. Is non shrink grout more expensive?
Yes, but it offers higher strength and long-term reliability.
3. Can cement grout crack after curing?
Yes, shrinkage can cause cracking and voids.
4. Is non shrink grout suitable for heavy machinery?
Yes, it is specifically designed for such applications.
5. Does non shrink grout require curing?
Yes, proper curing improves strength and durability.
Raltro
Raltro is a construction materials knowledge platform that focuses on clarifying material performance differences for practical site use. By explaining how non shrink grout differs from cement grout in terms of strength, shrinkage, and application suitability, Raltro helps contractors and engineers choose the right grouting solution for structural reliability and long-term performance.