Chennai, Tamil Nadu GST No. 33AAAFA7706K1ZN

Call 08048967856 84% Response Rate

Send Email

Home
»
Products We Offer
»
RMC MIX

RMC MIX

Providing you the best range of micro silica fume 920 u and microsilica micro white silica fume in chennai with effective & timely delivery.

Micro Silica Fume 920 U

Get Best Quote

Product Price: Rs 16 / KgGet Best Price

Minimum Order Quantity: 50 Kg

Product Brochure

Product Details:

Packaging Size	50 kg
Purity	85%
Usage/Application	Construction Industry
State	Powdered
Grade	Industrial Grade
Material	Grey Microsilica
Color	Gray
Packaging Type	HDPE Bag
Brand	Astrra Chemicals
Country of Origin	Made in India
Formula	SiO2

Silica Fume 920 U is a high-performance microsilica or condensed silica fume — a by-product of silicon or ferrosilicon alloy production — This material has very fine spherical particles (~0.1 μm) and a specific surface area of 15–30 m²/g, enabling it to act both as a pozzolan and a micro-filler in cementitious systems.

🔹 Key Properties of Silica Fume 920 U

SiO₂ Content: ≥92%
Form: Densified (improves handling and dispersion)
Particle Size: ~100× smaller than cement
Pozzolanic Activity Index: Very high
Color: Gray to off-white

🔹 I. Uses & Applications in Cement and Concrete1. High-Performance Concrete (HPC)

Used in structural elements requiring high strength and durability.
Benefits:
- Increased compressive strength (up to 100 MPa or more)
- Improved abrasion and impact resistance
- Excellent pumpability and workability with superplasticizers

2. High Strength Concrete (HSC)

Application Areas:
- High-rise buildings
- Bridge decks
- Prestressed elements
Silica Fume Role:
- Reacts with free Ca(OH)₂ to form additional C–S–H gel
- Densifies the cement matrix

3. Marine & Coastal Structures

Key Use: Resistance to chloride and sulfate attack
Structures: Piers, jetties, offshore platforms
Benefits:
- Reduces permeability
- Inhibits corrosion of reinforcement steel

4. Shotcrete (Dry & Wet Mix)

Widely used in:
- Tunnel linings
- Mining support systems
- Slope stabilization
Improves:
- Bond strength
- Early strength gain
- Resistance to wash-out in wet conditions

5. Industrial Floors & Pavements

High abrasion resistance needed for:
- Warehouses
- Heavy machinery workshops
- Airport runways

6. Precast Concrete Products

Used in:
- Precast tunnel segments
- Railway sleepers
- Architectural elements
Benefits:
- Faster demolding time
- Smooth surface finish
- Lower permeability

7. Chemical & Waste Containment Structures

In hazardous environments (acidic or saline), silica fume enhances chemical durability.

🔹 II. Other Applications Beyond Concrete1. Refractory Castables

Used in low-cement castables (LCC) and ultra-low cement castables (ULCC).
Benefits:
- Improves packing density
- Reduces porosity
- Enhances mechanical strength and thermal shock resistance

2. Ceramics

Acts as a binder and densifying agent in high-temperature ceramic parts.

3. Silicon Carbide Production

Used as a silica source in reduction processes to produce SiC.

4. Polymer-Concrete Composites

Enhances interfacial bonding between polymer and aggregate.
Used in precast polymer concrete utility structures, manholes, etc

Additional Information:

Production Capacity: 100000
Delivery Time: Immediate
Packaging Details: 25 Kgs Brand New PP Bags

Yes! I am InterestedRequest A Callback

Microsilica Micro White Silica Fume in chennai

Get Best Quote

Product Price: Rs 23 / KgGet Best Price

Minimum Order Quantity: 50 Kg

Product Brochure

Product Details:

Packaging Size	50 Kgs
Purity	99%
Usage/Application	Construction Industry
State	Powdered
Grade	Concrete Grade
Material	Microsilica
Color	White
Packaging Type	HDPE Bag
Density	0.76 gm/cc
PH Value	6.90
Brand	Astrra Chemicals

We are the leading manufactures, technical suppliers of white silica fume ( microsilica ) in chennai, tamil nadu, india for the concrete industry. It is a very rare micro silicon powder. We are very strict on the raw material and production process and it can be used in superfine fillers with high whiteness requirements, such as grout, sealant, and repair agent so on. It improves the properties of both fresh and hardened concrete. The most important property is the permeability, lower the ingress of movement of water or chemicals; lower the adverse reactions such as sulfate attack, the reaction between silica fume and the calcium hydroxide, released as the cement hydrates, provides a dense impermeable pore structure. The temperature of the white fume silica is 1800 degrees, higher than the ordinary microsilica fume, so in the refractory industry, white micro silicon powder is more popular. Improve the mechanical performances of concrete. The silica fume reacts with the cement paste to form additional strong calcium silicate hydrate (csh) providing higher strength. Silica fume reduces bleeding and enhances the cement paste bond to the aggregates. Thanks to its pozzolanic effect (reaction with ca(oh)2 ), and therefore to the strength improvement.

concrete or shotcrete:

increases its density and strength, improves the performance on its durability, impact resistances, corrosion resistance, anti-permeability and frost resistance etc.
refractory material & ceramics material
greatly improves its density, strength and high temperature performance.
cementitious repair products (mortars & grouts)
low permeability, increases resistances from chlorides, acids, nitrates and sulfate etc.
oil well grouting
increase durability and compressive strength, decreases permeability, better control of gas leakage
concrete tile, roofing & wallboard, panels
light weight and improves the strength
polymers & rubber product
other application, such as water glass industry, thermal insulation material etc.

microsilica ( silica fumed densified ) 1). It is a very reactive and effective pozzoloanic material due to its fine particle size and high purity of sio2 ( 99. 5% ) content. 2). It enhances the mechanical properties, durability and constructability in concrete, 3). It is used in the production of high strenght & high performance concrete, 4). It is used in the production of high performance concrete structures like bridge’s where the strenght and durability properties of the concrete is required. 5). It can be used to build marine structures as it reduces the damage caused due to the reaction of chloride and various chemicals, it helps in protection of steel from rust and corrosion and increses the life of the stucture. 6). The recommended dosage is 7 – 10 % of the cement weight added to the concrete. Microsilica or silica fumed is the most commonly used mineral admixture in high strength concrete. It has become the chosen favorites for high strength concrete and is a good pozzolan & can be used in a big way, adding to the concrete mix will dramatically enhance the workability, strength & impermeability of concrete mixes while making the concrete durable to chemical attacks, abrasion & reinforcement corrosion, increasing the comprehensive strength. There is a growing demand in the production of concrete mixes, high performance concrete, and high strength, low permeability concrete for use in bridges, marine environment, and nuclear plants ctc ctc.

Additional Information:

Production Capacity: 100000
Delivery Time: Immediate
Packaging Details: 50 Kgs Brand New PP Bags

Yes! I am InterestedRequest A Callback

EXPLORE MORE CATEGORIES

View Complete Range >

RMC MIX

Micro Silica Fume 920 U

Microsilica Micro White Silica Fume in chennai

EXPLORE MORE CATEGORIES

building and construction material

COSMETIC CLAYS

Speciality Chemicals

Aerosil-200

Animal Feed Supplements

Essential Oils Aeromatic Oils Aeromatic Essential