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Low-heat, micro-expansive cement
Main business：Building, infrastructure, industrial, mining, marine engineering, military engineering, expressway, tunnel, bridge, concrete repair, installation of large-scale mechanical equipment, wind power equipment, foundation bolt fixing, etc. High-performance, early-strength, micro-expansion, self-compacting, large-flow leveling, rapid repair cement grouting material
- Commodity name： Low-heat, micro-expansive cement
- Description
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Packaging/Specifications
Specifications Length (cm) Width (cm) Height (cm) Volume (m³) Weight (kg/bag) Price (USD/ton) 25 kg/bag 60 40 15 0.036 25 350 Product Overview
Performance characteristics
● Low heat of hydration:
The hydration process releases relatively little heat, effectively reducing cracks in large-volume concrete caused by temperature stresses.
● Micro-expansive property
During the hardening process, a moderate volume expansion occurs, which can compensate for the drying shrinkage and thermal contraction of concrete, thereby enhancing its compactness and crack resistance.
● Reasonable strength development:
Early strength is moderate, and late-stage strength continues to increase, meeting the strength requirements of engineering structures.
● Good durability:
It exhibits excellent impermeability and freeze-thaw resistance, which can extend the service life of concrete structures.
Application scenarios
● Mass concrete works:
For structures such as dams, large foundations, and bridge piers, their low-thermal-characteristic properties can be leveraged to reduce temperature-induced cracking.
● Waterproofing works:
Thanks to its micro-expansion property, it enhances the compactness of concrete and is suitable for waterproofing applications such as basements and swimming pools.
● Repair work:
It can be used for repairing concrete structures, reducing the shrinkage difference between the repaired area and the original structure.
Technical indicators
Specific surface area ≥300 m³/kg Setting time Initial setting ≥ 45 min Final setting ≤ 12 h Stability Boiling method passed. Linear expansion rate 1d ≥ 0.05% 7d ≥ 0.10% Chloride ion ≤0.06% Alkali content Qualified Strength grade 32.5 Hydration heat 3d ≤ 185 kJ/kg 3d ≤ 220 kJ/kg Flexural resistance ≥7.0 MPa Stress-resistant ≥32.5 MPa Construction method
Transportation and storage
Factory Strength
Qualification
Message
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Email: chinese@cement-grout.com
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