Fosroc Conbextra GP2 — Non-Shrink Cementitious Precision Grout (25 kg / 30 kg)
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Fosroc Conbextra GP2 — Non-Shrink Cementitious Precision Grout (25 kg / 30 kg)
Fosroc Conbextra GP2 — Non-Shrink Cementitious Precision Grout
Conbextra GP2 is Fosroc's most trusted general purpose non-shrink cementitious grout, engineered for precision grouting where structures must withstand both static and dynamic loads. Used across thousands of construction and industrial projects in India, GP2 is the go-to specification for structural engineers, civil contractors, and procurement managers who need reliable, gap-free grouting performance every time.
Key Features
- Non-Shrink Technology: Gaseous expansion system compensates for shrinkage and settlement in the plastic state, ensuring full contact between bearing surfaces
- High Compressive Strength: Achieves 65–78 N/mm² at 28 days depending on consistency, exceeding M60 grade requirements
- Free-Flowing: Adjustable consistency — flowable, pourable, or dry pack — from a single product by varying the water addition
- High Early Strength: 24–27 N/mm² at just 1 day, enabling faster project turnaround
- Non-Metallic: Contains no metallic iron content — prevents staining and corrosion-related deterioration
- Pre-Bagged: Ready-to-use dry powder — just add water on site, no batching errors
- Chloride-Free: Safe for use around reinforcement steel and post-tensioned structures
Applications
- Machine base plate grouting — turbines, compressors, boiler feed pumps, generators
- Column and beam base plate grouting in building frames
- Anchor bolt and holding-down bolt pocket filling
- Precast element connections and joints
- Bridge bearing pedestals and crane rail grouting
- Staircase bolting, gate posts, fence posts, mast foundations
- Gap filling between steel structures and concrete foundations
- Structural repairs and vertical connections
Technical Specifications
| Product Type | Non-shrink cementitious precision grout |
| Base Material | Portland cement + graded fillers + chemical additives |
| Compressive Strength (1 day) | 24–27 N/mm² |
| Compressive Strength (3 days) | 45–54 N/mm² |
| Compressive Strength (7 days) | 55–66 N/mm² |
| Compressive Strength (28 days) | 65–78 N/mm² |
| Flexural Strength (28 days) | 10.0 N/mm² |
| Tensile Strength (28 days) | 3.5 N/mm² |
| Pullout Bond Strength (7 days) | 17 N/mm² |
| Pullout Bond Strength (28 days) | 20 N/mm² |
| Young's Modulus | 28 kN/mm² (ASTM D469-94) |
| Fresh Wet Density | ~2220 kg/m³ |
| Maximum Gap Thickness | Up to 100 mm |
| Expansion Start | 20 minutes after mixing |
| Expansion Finish | 120 minutes after mixing |
| Standard Compliance | ASTM C1107 (Non-Shrink Grout) |
Mixing Ratios
| Consistency | Water per 25 kg bag | Water/Powder Ratio |
| Flowable | 4.5 litres | 0.18 |
| Pourable | 4.125 litres | 0.165 |
Yield
One 25 kg bag produces approximately 13.3 litres of mixed grout at flowable consistency. Calculate your project requirement based on the total void volume to be filled.
Packaging
Available in 25 kg and 30 kg bags. Shelf life: 6 months from date of manufacture when stored in original sealed packaging in a cool, dry place.
Why Buy from ADT Industries?
- 100% Original Fosroc Product — sourced directly through authorized channel, batch-traceable
- Technical Support — our team helps you select the right consistency and calculate quantities for your project
- Fast Delivery — PAN India supply from our Navi Mumbai warehouse, bulk orders dispatched within 24–48 hours
- Competitive Pricing — wholesale and project rates available for contractors and builders
- Trusted Supplier — ISO 9001:2015 certified, 4.8★ Google rating, 100+ verified reviews, Pidilite Platinum Circle Award winner
Ideal For
Civil contractors, structural engineers, EPC companies, industrial plant maintenance teams, infrastructure developers, precast manufacturers, and procurement managers sourcing non-shrink cementitious grout for structural and machine foundation grouting projects across India.
Need bulk pricing or technical guidance? Call our toll-free number 1800 410 1818 or WhatsApp us at +91 96193 03000 for instant support.