ELKEM MICROSILICA 920D
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Phone: 0985 906 790
- 4-4-1, Đường số 3, KP. 5, P. Hiệp Bình Phước, TP. Thủ Đức, TP. HCM
- 0966999999
- cskh@icci.com.vn
- https://icci.com.vn
ELKEM MICROSILICA 920D
ELKEM MICROSILICA 920D is a new generation powdered concrete admixture. This product contains ultra-fine microsilica that fills the voids between cement particles, creating a dense concrete surface with high water resistance.
Advantages
ELKEM MICROSILICA 920D contains extremely fine active silica dioxide (particle size < 0.1μm). This active component reacts with free lime (calcium hydroxide present in cement mortar) to form calcium silicate hydrate, significantly improving internal bonding strength and the waterproofing ability of the concrete. The concrete achieves very high cohesion and significantly improved pumpability.
When used together with superplasticizer admixtures, the concrete exhibits the following properties:
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Increased strength and load-bearing capacity of the structure
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High and early strength achievement, saving construction time
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Enhanced final strength
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Improved resistance to abrasion and sulfate attack
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Significantly increased water impermeability
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Significantly improved resistance to gas penetration
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Reduced chloride diffusion
Practical Uses
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Used in ready-mixed concrete at batching plants and precast concrete elements
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Used in hydraulic works, basements, and areas subject to corrosion
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Used in other fields requiring high-quality fresh and hardened concrete
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Contact
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545
Specification Type
ELKEM MICROSILICA 920D complies with ASTM C1240 standard.
Advantages
ELKEM MICROSILICA 920D contains extremely fine active silica dioxide (particle size < 0.1μm). This active component reacts with free lime (calcium hydroxide present in cement mortar) to form calcium silicate hydrate, significantly improving internal bonding strength and the waterproofing ability of the concrete. The concrete achieves very high cohesion and significantly improved pumpability.
When used together with superplasticizer admixtures, the concrete exhibits the following properties:
-
Increased strength and load-bearing capacity of the structure
-
High and early strength achievement, saving construction time
-
Enhanced final strength
-
Improved resistance to abrasion and sulfate attack
-
Significantly increased water impermeability
-
Significantly improved resistance to gas penetration
-
Reduced chloride diffusion
Practical Uses
-
Used in ready-mixed concrete at batching plants and precast concrete elements
-
Used in hydraulic works, basements, and areas subject to corrosion
-
Used in other fields requiring high-quality fresh and hardened concrete
Suggested Uses
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Dosage rate: Typical dosage ranges from 5-10% by weight of cement (depending on the requirements of the concrete element). To achieve optimal concrete performance, always use in combination with superplasticizer additives.
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Cement: Suitable for all types of Portland cement.
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Quantitative: Add coarse aggregates to the mixer first at the batching plant, then add fine aggregates and cement into the rotating mixer drum, followed by the measured amount of water. Optimal mixing time is 90 seconds.
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Note: Concrete containing ELKEM MICROSILICA 920D should be handled and placed similarly to regular concrete batches. Comply with standards for concrete placement and curing should begin immediately after casting.
Safety Information
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Ecology: Do not discharge into water sources.
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Destroyl: Follow current regulations.
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Explosion: Non-flammable and non-explosive.
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Protection measures: Avoid contact with food and household items. Avoid prolonged skin contact. In case of contamination, wash thoroughly with water. If it comes into contact with eyes or mouth, rinse immediately with clean water and seek medical attention promptly.
General Properties
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Appearance: Powder form, gray color
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Chemical composition: Pozzolanic silica fume
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Specific gravity: Approximately 2.15 g/cm³
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Loose bulk density: 0.5 – 0.7 g/cm³
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Packaging: 20 kg or 660 kg per bag
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Chloride content: Negligible
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Storage: Store in a cool, dry place with shade
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Expiry date: Minimum 24 months if stored properly in unopened packaging
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