What Is Anchor Grout?
It's typically a two-component polyester resin-based grout (Part A liquid resin and Part B filler/hardener) that, once mixed, forms a high-strength, corrosion-resistant anchoring mortar under the right conditions
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Designed for situations where the hole diameter and bar diameter differ by ≤ 25 mm
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✅ Key Features & Benefits
Rapid strength gain allows for early load application (e.g. load-ready in 2–3 hours)
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Vibration-resistant, making it ideal for dynamic or industrial environments
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Non‑expansive (doesn’t expand after curing), and can be placed under water or in damp conditions
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Corrosion-resistant, suited for harsh or wet environments, including marine or chemical-exposed sites
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🛠️ Typical Applications
Permanent anchorage of starter bars, reinforcement dowels, safety railings, ground anchors, and foundation bolts into concrete, rock, masonry or brickwork
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Fast‑setting anchoring for machinery base plates, track rails, and structural base components
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🧪 Technical Properties (Typical Polyester Anchor Grout)
Property Typical Value
Compressive Strength @ 3 hrs ~20 MPa (≈2 N/mm²)
Compressive Strength @ 7 days ~70 MPa
Mixed Yield ~0.5 L per kg of product
Working Time (gel time) ~30–45 min depending on temperature
Storage Life ~6 months if stored dry between 5–25 °C
Mixing Conditions Suitable in dry, damp, or underwater
Example product (Bondit POAG‑01): 20 MPa at 3 hrs, 70 MPa after 7 days; yield ~ 0.5 L per kg; gel time ~40–45 min at ~30–40 °C; minimum load time ~1‑3 hrs; storage life ~6 months
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🔧 Application Guidelines
Surface Preparation: Hole/bar installation zones must be clean, roughened, oil‑free, and free from dust, paint, rust, grease, algae, or salts. Compressed air or flushing is commonly used for cleaning
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Mixing: Combine Part A and Part B (resin and hardener filler) until a uniform thixotropic paste forms. Mixing may be done mechanically or manually with gloves
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Placement: Pour into hole or cavity, then push anchor or bolt into place. Must be done before gel time expires
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Curing: Allow time for hardening—often load-ready within 1‑3 hours. Full strength usually achieved in 7 days
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⚠️ Variants & Alternatives
Keygrout (DCP – Keygrout H/V): Similar high-performance polyester resin grout, fast-cure, damp-tolerant (useable underwater), high strength, excellent bond to concrete/steel, available in horizontal and vertical variants. Yield ~0.56 L per kg, shelf life ~6 months
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Navrattan Anchor Grout (geopolymer powder): A single-component, water-activated, non-resin, non-corrosive, eco‑friendly geopolymer grout. Expands slightly, waterproof, high early strengths (e.g. ~21 MPa at 2 hrs, ~45 MPa at 28 days)
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Epoxy-based anchor grouts (e.g. MAX 2007) offer superior chemical resistance and flow in structural/underwater, freeze-thaw conditions—but slower set and higher cost
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🧠 Summary
Anchor Grout is a resin-based, two-component anchoring material key for high-strength, corrosion-resistant applications. It’s ideal for bolts, bars, and machinery anchoring in concrete or rock, especially where rapid strength gain, chemical resistance, and use in damp or underwater settings are required. Available in standard polyester resin and geopolymer powder versions, with typical strengths reaching 70 MPa by 7 days.
Would you like?
Brand-specific data sheets or Technical Data Sheets (TDS) for a particular product?
Price estimates or suppliers in Ahmedabad / Gujarat, India?
Comparison to cementitious non‑shrink grouts in similar applications?
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