Send Inquiry

Request To Call Back

Rice Husk Ash RHA

Get a Price/Quote

MOQ : 10 Kilograms

Rice Husk Ash RHA Specification

Purity
>92% SiO2

Other Names
RHA, Rice Husk Silica Ash

Refractive Rate
1.46 - 1.55

Shape
Amorphous Powder

Ph Level
~7-8

Structural Formula
SiO2

Molecular Formula
SiO2

Molecular Weight
60.08 g/mol

HS Code
26219010

Solubility
Insoluble in water

Poisonous
No

Taste
Odorless, Tasteless

Smell
Odorless

Form
Fine Powder

Storage
Store in dry, cool places

Density
0.7 Gram per cubic centimeter(g/cm3)

Melting Point
~1550C

Classification
Inorganic Silica Compound

Chemical Name
Rice Husk Ash

CAS No
7631-86-9

EINECS No
215-687-4

Grade
Industrial Grade

Standard
IS 1737:1964

Type
Powdered Ash

Usage
Additive in cement, Insulating material, Soil stabilizer, Industrial raw material

Main Material
Silicon Dioxide (SiO2)

Application
Other

Non Toxic
No

Loss on Ignition (LOI)
<5%

Specific Surface Area
180-250 m2/g

Shelf Life
12 months from manufacture

Al2O3 Content
<1%

Particle Size
45-150 micron

Sio2 Content
>92%

Color
Light grey to off-white

Packaging
25 kg, 50 kg, jumbo bags

Bulk Density
200-300 kg/m3

About Rice Husk Ash RHA

Processed Pulverized Rice Husk Ash (RHA)
|
High Reactivity Pozzolanic Additive for Concrete & Infrastructure

Key Highlights:

High Silica (85-95%)
Ultra-fine processed powder
Excellent pozzolanic reactivity
Eco-friendly & sustainable

Applications:

RMC / HPC Concrete
Roads & Pavements
Marine Structures
Precast Blocks & Products
Mortars & Plasters
Soil Stabilization

Performance Benefits:

Higher strength & durability
Reduced permeability
Improved chemical resistance
Less cracking & heat
Better corrosion resistance

Go Green with ASTRRA

Reduce cement usage
Lower CO₂ emissions
Sustainable construction solution

Innovating Sustainable Construction Materials

Key Applications and Benefits

Rice Husk Ash LLP is prized in the construction industry as a pozzolanic material, cement additive, and soil stabilizer, significantly enhancing strength and durability. It also serves as an excellent insulating material in refractory linings and as an industrial raw material. With its high silica content and amorphous structure, it contributes to improved workability and longevity of finished products.

Superior Quality and Standards

Our RHA is produced under stringent quality control, ensuring a SiO2 purity of over 92% and low loss on ignition (<5%). Manufactured in India, it meets the IS 1737:1964 standard, guaranteeing consistent industrial-grade performance. The ash is delivered in powder form and conforms to international chemical and physical specifications.

Safe Handling and Storage

Rice Husk Ash LLP is non-toxic, non-poisonous, and odorless. For best results, store the product in dry, cool conditions, away from moisture. Proper storage safeguards its fine powder form and reactivity, ensuring up to 12 months of shelf life from the date of manufacture.

FAQ's of Rice Husk Ash RHA LLP:

Q: How should Rice Husk Ash LLP be used in cement or concrete applications?

A: To utilize Rice Husk Ash LLP in cement or concrete, simply replace a percentage of the cement content-typically 10-20%-with RHA. Mix thoroughly to achieve even dispersion, which enhances the material's strength, durability, and pozzolanic properties. Always follow the guidelines specific to your project requirements.

Q: What advantages does RHA offer over other silica sources?

A: Rice Husk Ash LLP offers high SiO2 content (over 92%), a fine amorphous powder structure, and a high surface area, making it a superior pozzolan and filler. Its renewable agricultural origin and chemical stability provide both performance and sustainability benefits compared to conventional silica sources.

Q: When is Rice Husk Ash typically added during the construction process?

A: RHA is generally introduced during the mixing phase when preparing cement, concrete, or mortar. This early integration ensures that it reacts adequately with calcium hydroxide to form additional binding materials, thereby improving mechanical and durability characteristics.

Q: Where is Rice Husk Ash produced and supplied from?

A: Our Rice Husk Ash LLP is manufactured, supplied, and exported from India, adhering to domestic and international standards. The product is available for global shipment in various packaging sizes to meet diverse industrial and project requirements.

Q: What is the process behind manufacturing Rice Husk Ash LLP?

A: RHA is produced by controlled combustion of rice husks at suitable temperatures to ensure low carbon residue (<5% LOI) and optimal amorphous silica content. The ash is then finely milled and sieved to achieve a uniform particle size of 45-150 microns before packaging.

Q: What are the main benefits of adding RHA to construction materials?

A: Incorporating RHA into construction materials increases compressive strength, reduces permeability, and enhances resistance to chemical attacks. Its pozzolanic activity contributes to long-lasting and environmentally friendly structures.

Q: How should Rice Husk Ash be stored to maintain its quality?

A: Store RHA in dry, cool, and moisture-free conditions using its original sealed packaging. Proper storage ensures the product retains its chemical reactivity, fine powder form, and effectiveness for up to 12 months after manufacture.

Tell us about your requirement