Microsilica NR85U
Microsilica NR85U is an undensified dry powder microsilica admixture for Portland cement concrete and mortars.
Microsilica NR85U is a pozzolanic material that consists primarily of fine silicon dioxide particles in a non-crystalline form.
Microsilica NR85U meets the requirements of ASTM C-1240 and contains a minimum of 85% silicon dioxide (SiO2)
Description
Product:Undensified Microsilica NR85U ( Undensified Silica Fume NR85U)
Undensified Bulk density (200-350 kg/m³)
Microsilica properties
| Physical State | Ultrafine amorphous powder |
| Color | Light to dark gray |
| Solubility(Water) | Insoluble to slightly soluble |
| Melting point(℃) | Approx. 1230 |
| specific Gravity | 2.2-2.3 |
| Bulk density(kg/m³) | 200-350kg/m³ |
| Particle size(μm) | Approx 0.3 |
Packaging & Delivery
10kg soluble paper bags x 96 on the pallets.
20kg soluble paper bags x 48 on the pallets.
950kg plastic woven bags x 2 on the pallets(with or without bottom output )
1000kg plastic woven bags x 2 on the pallets(with or without bottom output )
We can also customize bags according to your requirement.
Advantages
. Lowers concrete permeability.
. Significantly increases concrete durability.
. Increases ultimate strength gain.
. Beneficial in all types of high strength concrete applications.
. Improves bond strength to steel.
. Significantly reduces alkali-silica reactivity.
. Provides excellent resistance to sulfate or seawater attack.
. Reduces steel corrosion.
. Improves freeze/thaw durability of concrete.
Storage & handling
Newreach Microsilica should be stored in dry conditions and not exposed to moisture.
Quality Assurance & Quality control
Newreach Silicon Materials’ Management System for development, processing and supply of Newreach Microsilica is certified to ISO 9001. The chemical and physical properties of Newreach Microsilica are regularly tested.
Application
Suitable for all concrete and mortar applications where the benefits of silica fume are required:
- Higher compressive strength
- Increased durability – Longer service life for structures
- Enhanced rheology – Control of mixture segregation & bleed
Newreach Microsilica into the concrete mixer and mix thoroughly with the other mixture ingredients, adopting a procedure that ensures full dispersion of the product. Dosage varies depending on application. Contact Newreach for information and advice.
Why choose us?
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