Low Heat Expansion Cement
Special cement with low heat of hydration and micro-expansion performance designed for crack-resistant concrete structures and durable engineering applications.
Packaging & Delivery
| Packaging | 3-ply paper-plastic composite bag | Spec. | 25KG/bag | Volume | 60*40*15cm |
| MOQ | 1000KG | Lead Time | 1-7 working days | Shelf Life | 6 months (unopened, in dry conditions) |
| Trade Terms | FOB/EXW | Payment | T/T / L/C | Port | Shanghai / Ningbo |
Product Overview
Low Heat Expansion Cement is developed for engineering projects where temperature control and crack resistance are critical. During hydration, it releases less heat compared with ordinary cement, reducing internal temperature differences in concrete structures. Its micro-expansion property helps compensate shrinkage and improves the overall stability of concrete.
Product Features
Technical Specifications
| Parameter | Value | Test Standard | Test Result | Status |
|---|---|---|---|---|
| Strength Grade | 32.5 | GB 2938β2008 | 32.5 | Pass |
| Specific Surface Area | β₯300 mΒ²/kg | GB 2938β2008 | 335 mΒ²/kg | Pass |
| Initial Setting Time | β₯45 min | GB 2938β2008 | 56 min | Pass |
| Final Setting Time | β€12 h | GB 2938β2008 | 9.5 h | Pass |
| Stability | Qualified (Boiling Method) | GB 2938β2008 | Qualified | Pass |
| Linear Expansion Coefficient (1d) | β₯0.05% | GB 2938β2008 | 0.072% | Pass |
| Linear Expansion Coefficient (7d) | β₯0.10% | GB 2938β2008 | 0.13% | Pass |
| Chloride Ion Content | β€0.06% | GB 2938β2008 | 0.03% | Pass |
| Hydration Heat (3d) | β€185 kJ/kg | GB 2938β2008 | 162 kJ/kg | Pass |
| Flexural Strength | β₯7.0 MPa | GB 2938β2008 | 7.6 MPa | Pass |
| Compressive Strength | β₯32.5 MPa | GB 2938β2008 | 36.8 MPa | Pass |
Advantages
Low Heat of Hydration
Reduces temperature stress and minimizes cracking risks in large-volume concrete structures.
Micro Expansion Performance
Controlled expansion compensates drying shrinkage and improves concrete compactness.
Excellent Durability
Provides good impermeability and freeze-thaw resistance for long service life.
Applications & Operation Video
Trusted across diverse construction scenarios
Mass Concrete Structures
Suitable for dams, large foundations and bridge piers where temperature cracking control is required.
Waterproofing Projects
Used in basements, swimming pools and other structures requiring improved compactness and crack resistance.
Concrete Repair
Suitable for repairing concrete structures by reducing shrinkage differences between repair materials and existing concrete.
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Usage Guidelines
Mixing ratio: Follow the manufacturer's specified water-to-cement ratio
Working time: Use within 30 minutes after mixing
Curing: Maintain moisture after final set for optimal strength development
Construction temperature: 5ββ35β
Storage & Shelf Life
Storage Condition
Store in a dry, ventilated place, protected from moisture.
Shelf Life
6 months (unopened, in dry conditions)
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