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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