A pumpable, low-temperature grout for wind-turbine base plates and anchor bolts, delivering high early strength and void-free bedding down to -20 °C.
Summary Benefits at a Glance:
Reliable in cold regions: consistent placement at -15 °C to -20 °C.
High early strength: accelerates installation and load transfer.
Non-shrink with micro-expansion: tight, void-free contact.
Durable: frost, sulfate and chloride resistance.
Product Introduction
CBGM Antifreeze Type Wind Power Grout is a single-component, cement-based material tailored for wind-turbine foundations and hoisting platforms under severe cold. The mix combines high flowability with controlled micro-expansion to eliminate voids beneath base plates and around anchor bolts. It develops rapid early strength and dependable 28-day strength in sub-zero conditions, supports continuous pumping/Pouring, and maintains a practical workability window for on-site operations in cold, windy environments typical of onshore wind farms.
Product Parameters
| Item | Requirement |
|---|---|
| Flowability at -5 °C – initial (mm) | ≥300 |
| Flowability at -5 °C – 30 min (mm) | ≥260 |
| Flowability at 8 °C – initial (mm) | ≥300 |
| Flowability at 8 °C – 30 min (mm) | ≥260 |
| Compressive strength -1 d (MPa) | ≥20 |
| Compressive strength -3 d (MPa) | ≥25 |
| Compressive strength -7 d (MPa) | ≥40 |
| Compressive strength -21 d (MPa) | ≥60 |
| Compressive strength -28 d (MPa) | ≥90 |
| Expansion rate 24 h (%) | 0.02–0.40 |
| Restrained expansion 28 d, dry curing (%) | ≤0.02 |
| Restrained expansion 28 d, water curing (%) | ≤0.03 |
| Packaging | 25 kg bag |
| Shelf life | 12 months (dry, ventilated storage) |
Packaging: 25 kg/bag or 1 ton jumbo bag
Shelf Life: 12 months (dry storage, moisture-protected)
Product Usage
Substrate prep — Remove dust/oil/loose particles; pre-wet to SSD; keep standing water out of the formwork.
Formwork — Seal joints; establish a one-way flow path from inlet to outlet; apply release agent as needed.
Mixing — Add clean water first, then powder; recommended water-to-binder ratio 0.13–0.16; mix 3–5 min to a uniform, pumpable grout.
Placement — Pour/pump continuously from one side; do not vibrate; maintain head pressure to avoid air pockets around anchor bolts and under base plates.
Cold-weather notes — Use tempered water, insulate lines and hoppers, protect fresh grout from freezing and wind.
Curing — Begin curing after initial set; keep moist or apply curing compound for ≥7 days.
Product Documentation
CBGM Antifreeze Type Wind Power Grout (Low-Temperature Series)
CBGM Antifreeze Wind Power Grout for Cold Regions | High-Strength Non-Shrink, Micro-Expansion, Pumpable
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Our products have undergone rigorous testing at our national testing laboratory (CABR testing center co., ltd). Renowned Fortune Global 500 firms such as China Railway Group Limited, China Communications Construction Company Limited, and Sinohydro are among our esteemed clients.
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