Fosroc Conbextra GP3: A Comprehensive Overview of a High-Performance Cementitious Precision Grout
Fosroc Chemicals India Private Limited manufactures the Fosroc Conbextra GP3, a high-strength, non-shrink, cementitious precision grout. Space Arc Engineering, their authorized distributor, markets and supplies this product along with the entire Fosroc range of products in India.
Table of Contents
1. Introduction
The Fosroc Conbextra GP3 is a blend of Portland cement, graded fillers, and chemical additives that, when mixed with a controlled amount of clean water, produces a free-flowing, non-shrink grout for gap thicknesses up to 100mm. This unique product is designed for precision grouting and anchoring applications in various industries.
2. Main Uses
Precision grouting is frequently done with the Conbextra GP3, especially when it is necessary for the grout to endure both static and dynamic loads. Typical applications include grouting base plates of turbines, compressors, boiler feed pumps, bridge bearing pedestals , and other critical applications. It can also be used for anchoring a wide range of fixings, such as masts, anchor bolts, and fence posts .
3. Advantages
The Fosroc Conbextra GP3 offers several benefits that make it an excellent choice for grouting and anchoring applications:
3.1. Dual Expansion Systems
The dual expansion systems in Conbextra GP3 compensate for shrinkage and settlement in both the plastic and hardened states, ensuring a secure and stable grout.
3.2. No Metallic Iron Content
The absence of metallic iron content prevents staining, making the product suitable for use in applications where appearance is important.
3.3. Pre-packed Material
The pre-packed material overcomes onsite batching variations, ensuring a consistent grout mix every time.
3.4. High Early and Ultimate Strength
The low water demand of Conbextra GP3 ensures high early strength, while the high ultimate strength ensures the durability of the hardened grout.
3.5. Free Flow
The free flow of the Conbextra GP3 ensures a high level of contact with the load-bearing area, providing optimal support and stability.
4. Standard Compliance
Conbextra GP3 conforms to ASTM C1107 (Standard Specification for Packaged Dry, Hydraulic-Cement Grout (Non-shrink)).
5. Applications
5.1. Precision Grouting
Conbextra GP3 is specifically designed for precision grouting applications where it is essential to withstand static and dynamic loads, such as grouting base plates in industrial settings.
5.2. Anchoring
The product can be used to anchor a wide range of fixings, including masts, anchor bolts, and fence posts, providing secure and stable support for various applications.
6. Technical Support
An experienced technical advisory team is available to provide technical service and suppo
7. Properties
The Fosroc Conbextra GP3 exhibits a range of important properties, making it a versatile and effective grouting solution:
7.1. Compressive Strength
Conbextra GP3 offers impressive compressive strength, with values of 40 N/mm² at one day and 60 N/mm² at 28 days, ensuring the durability and stability of the grout.
7.2. Flexural Strength
The flexural strength of the Conbextra GP3 grout is approximately 8 N/mm² at 28 days, which allows it to handle a variety of loading conditions effectively.
7.3. Tensile Strength
The tensile strength of Conbextra GP3 is approximately 4 N/mm² at 28 days, providing strong adhesion and resistance to cracking.
7.4. Pullout Bond Strength
The pullout bond strength of Conbextra GP3 is around 15 N/mm² at 28 days, ensuring a strong bond between the grout and the substrate.
8. Mixing and Placing
To achieve the best results, it is essential to follow the correct mixing and placing procedures for Conbextra GP3:
9. Curing
Curing is an essential step in ensuring the performance and durability of Conbextra GP3. Proper curing involves preventing the loss of moisture from the grout surface for at least 24 hours after placement. This can be done using a curing compound, wet hessian, or polyethylene sheeting.
10. Limitations
Conbextra GP3 is not recommended for use in areas subject to continuous water flow or immersion. It is also not suitable for applications where dynamic loads will cause excessive movement or vibration.
11. Estimating
To estimate the quantity of Conbextra GP3 required for a specific project, calculate the volume of the void or gap to be filled and consult the product datasheet for the appropriate yield information.
12. Storage and Shelf Life
Store Conbextra GP3 in a cool, dry place, away from direct sunlight. When stored correctly, the product has a shelf life of 12 months from the date of manufacture.
13. Precautions
As with any cementitious product, appropriate safety precautions should be followed when using Conbextra GP3:
For further information on the properties, uses, and applications of Fosroc Conbextra GP3, consult the product datasheet and technical data available from the manufacturer and authorized distributors.
15. Conclusion
Fosroc Conbextra GP3 is a high-performance, non-shrink, cementitious precision grout that offers a range of benefits, including dual expansion systems, no metallic iron content, pre-packed material, high early and ultimate strength, and free flow. These advantages make it an ideal choice for precision grouting and anchoring applications across various industries.
Frequently Asked Questions about Fosroc Conbextra GP3
Q1: What is Fosroc Conbextra GP3?
A1: Fosroc Conbextra GP3 is a high-performance, non-shrink, cementitious precision grout designed for use in a wide range of critical grouting applications, including under baseplates, bridge bearings, machine foundations, and anchoring of bolts.
Q2: What are the key benefits of using Conbextra GP3?
A2: The key benefits of Conbextra GP3 include its dual expansion systems, no metallic iron content, pre-packed material, high early and ultimate strength, and free flow properties. These features make it suitable for various precision grouting and anchoring applications.
Q3: What is the shelf life of Conbextra GP3?
A3: When stored correctly in a cool, dry place and away from direct sunlight, Conbextra GP3 has a shelf life of 12 months from the date of manufacture.
Q4: How do I mix and place Conbextra GP3?
A4: To mix and place Conbextra GP3, follow these steps:
A5: To ensure proper curing, prevent moisture loss from the grout surface for at least 24 hours after placement. You can use a curing compound, wet hessian, or polyethylene sheeting for this purpose.
Q6: What are the limitations of Conbextra GP3?
A6: Conbextra GP3 is not suitable for use in areas subject to continuous water flow or immersion, nor is it recommended for applications where dynamic loads will cause excessive movement or vibration.
Q7: How do I estimate the amount of Conbextra GP3 needed for my project?
A7: To estimate the quantity of Conbextra GP3 required, calculate the volume of the void or gap to be filled and consult the product datasheet for the appropriate yield information.
Q8: What safety precautions should be taken when using Conbextra GP3?
A8: When using Conbextra GP3, follow these safety precautions:
A9: For further information on the properties, uses, and applications of Fosroc Conbextra GP3, consult the product datasheet and technical data available from the manufacturer and authorized distributors.
Table of Contents
- Introduction
- Main Uses
- Advantages
- Dual Expansion Systems
- No Metallic Iron Content
- Pre-packed Material
- High Early and Ultimate Strength
- Free Flow
- Standard Compliance
- Applications
- Precision Grouting
- Anchoring
- Technical Support
- Properties
- Compressive Strength
- Flexural Strength
- Tensile Strength
- Pullout Bond Strength
- Mixing and Placing
- Curing
- Limitations
- Estimating
- Storage and Shelf Life
- Precautions
- Additional Information
- Conclusion
1. Introduction
The Fosroc Conbextra GP3 is a blend of Portland cement, graded fillers, and chemical additives that, when mixed with a controlled amount of clean water, produces a free-flowing, non-shrink grout for gap thicknesses up to 100mm. This unique product is designed for precision grouting and anchoring applications in various industries.
2. Main Uses
Precision grouting is frequently done with the Conbextra GP3, especially when it is necessary for the grout to endure both static and dynamic loads. Typical applications include grouting base plates of turbines, compressors, boiler feed pumps, bridge bearing pedestals , and other critical applications. It can also be used for anchoring a wide range of fixings, such as masts, anchor bolts, and fence posts .
3. Advantages
The Fosroc Conbextra GP3 offers several benefits that make it an excellent choice for grouting and anchoring applications:
3.1. Dual Expansion Systems
The dual expansion systems in Conbextra GP3 compensate for shrinkage and settlement in both the plastic and hardened states, ensuring a secure and stable grout.
3.2. No Metallic Iron Content
The absence of metallic iron content prevents staining, making the product suitable for use in applications where appearance is important.
3.3. Pre-packed Material
The pre-packed material overcomes onsite batching variations, ensuring a consistent grout mix every time.
3.4. High Early and Ultimate Strength
The low water demand of Conbextra GP3 ensures high early strength, while the high ultimate strength ensures the durability of the hardened grout.
3.5. Free Flow
The free flow of the Conbextra GP3 ensures a high level of contact with the load-bearing area, providing optimal support and stability.
4. Standard Compliance
Conbextra GP3 conforms to ASTM C1107 (Standard Specification for Packaged Dry, Hydraulic-Cement Grout (Non-shrink)).
5. Applications
5.1. Precision Grouting
Conbextra GP3 is specifically designed for precision grouting applications where it is essential to withstand static and dynamic loads, such as grouting base plates in industrial settings.
5.2. Anchoring
The product can be used to anchor a wide range of fixings, including masts, anchor bolts, and fence posts, providing secure and stable support for various applications.
6. Technical Support
An experienced technical advisory team is available to provide technical service and suppo
7. Properties
The Fosroc Conbextra GP3 exhibits a range of important properties, making it a versatile and effective grouting solution:
7.1. Compressive Strength
Conbextra GP3 offers impressive compressive strength, with values of 40 N/mm² at one day and 60 N/mm² at 28 days, ensuring the durability and stability of the grout.
7.2. Flexural Strength
The flexural strength of the Conbextra GP3 grout is approximately 8 N/mm² at 28 days, which allows it to handle a variety of loading conditions effectively.
7.3. Tensile Strength
The tensile strength of Conbextra GP3 is approximately 4 N/mm² at 28 days, providing strong adhesion and resistance to cracking.
7.4. Pullout Bond Strength
The pullout bond strength of Conbextra GP3 is around 15 N/mm² at 28 days, ensuring a strong bond between the grout and the substrate.
8. Mixing and Placing
To achieve the best results, it is essential to follow the correct mixing and placing procedures for Conbextra GP3:
- Pre-wet the substrate to achieve a saturated surface dry (SSD) condition.
- Mix the grout with clean water according to the manufacturer's instructions.
- Pour the mixed grout into the void or gap, ensuring a continuous flow to prevent air entrapment.
9. Curing
Curing is an essential step in ensuring the performance and durability of Conbextra GP3. Proper curing involves preventing the loss of moisture from the grout surface for at least 24 hours after placement. This can be done using a curing compound, wet hessian, or polyethylene sheeting.
10. Limitations
Conbextra GP3 is not recommended for use in areas subject to continuous water flow or immersion. It is also not suitable for applications where dynamic loads will cause excessive movement or vibration.
11. Estimating
To estimate the quantity of Conbextra GP3 required for a specific project, calculate the volume of the void or gap to be filled and consult the product datasheet for the appropriate yield information.
12. Storage and Shelf Life
Store Conbextra GP3 in a cool, dry place, away from direct sunlight. When stored correctly, the product has a shelf life of 12 months from the date of manufacture.
13. Precautions
As with any cementitious product, appropriate safety precautions should be followed when using Conbextra GP3:
- Avoid contact with skin and eyes.
- Use appropriate protective gear, such as gloves, eye and facial protection.
- In case of contact with eyes, rinse immediately with plenty of clean water and seek medical advice.
For further information on the properties, uses, and applications of Fosroc Conbextra GP3, consult the product datasheet and technical data available from the manufacturer and authorized distributors.
15. Conclusion
Fosroc Conbextra GP3 is a high-performance, non-shrink, cementitious precision grout that offers a range of benefits, including dual expansion systems, no metallic iron content, pre-packed material, high early and ultimate strength, and free flow. These advantages make it an ideal choice for precision grouting and anchoring applications across various industries.
Frequently Asked Questions about Fosroc Conbextra GP3
Q1: What is Fosroc Conbextra GP3?
A1: Fosroc Conbextra GP3 is a high-performance, non-shrink, cementitious precision grout designed for use in a wide range of critical grouting applications, including under baseplates, bridge bearings, machine foundations, and anchoring of bolts.
Q2: What are the key benefits of using Conbextra GP3?
A2: The key benefits of Conbextra GP3 include its dual expansion systems, no metallic iron content, pre-packed material, high early and ultimate strength, and free flow properties. These features make it suitable for various precision grouting and anchoring applications.
Q3: What is the shelf life of Conbextra GP3?
A3: When stored correctly in a cool, dry place and away from direct sunlight, Conbextra GP3 has a shelf life of 12 months from the date of manufacture.
Q4: How do I mix and place Conbextra GP3?
A4: To mix and place Conbextra GP3, follow these steps:
- Pre-wet the substrate to achieve a saturated surface dry (SSD) condition.
- Mix the grout with clean water according to the manufacturer's instructions.
- Pour the mixed grout into the void or gap, ensuring a continuous flow to prevent air entrapment.
A5: To ensure proper curing, prevent moisture loss from the grout surface for at least 24 hours after placement. You can use a curing compound, wet hessian, or polyethylene sheeting for this purpose.
Q6: What are the limitations of Conbextra GP3?
A6: Conbextra GP3 is not suitable for use in areas subject to continuous water flow or immersion, nor is it recommended for applications where dynamic loads will cause excessive movement or vibration.
Q7: How do I estimate the amount of Conbextra GP3 needed for my project?
A7: To estimate the quantity of Conbextra GP3 required, calculate the volume of the void or gap to be filled and consult the product datasheet for the appropriate yield information.
Q8: What safety precautions should be taken when using Conbextra GP3?
A8: When using Conbextra GP3, follow these safety precautions:
- Avoid contact with skin and eyes.
- Wear protective gear, such as gloves, clothing, and eye and face shields..
- In the event of eye contact, immediately rinse with lots of fresh water and seek medical attention.
A9: For further information on the properties, uses, and applications of Fosroc Conbextra GP3, consult the product datasheet and technical data available from the manufacturer and authorized distributors.