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Blaine Air Permeability Apparatus

Digital Blaine Air Permeability Apparatus

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Blaine Air Permeability Test Apparatus

Blaine Air Permeability Test Apparatus Specification

Interface Type
Direct observation / manual

Gas Pressure
Uses atmospheric air

Humidity
Ambient

Automation Grade
Manual

Max Height
Approx. 400 mm

Frequency
Not applicable (manual)

Response Time
Within 60 seconds

Equipment Type
Blaine Air Permeability Test Apparatus

Mounting Type
Bench-top

Accuracy
1% of reading

Port Size
Standard design port for manometer connection

Resolution
Up to 1 cm2/g

Features
Compact, Portable, Simple Operation, High Repeatability

Hardness
Not specified (metal body with glass manometer)

Operating Voltage
Not Applicable (manual operation)

Test Range
200 to 6000 cm2/g

Display Type
Manometer (liquid level) scale

Measuring Range
200 to 6000 cm2/g

Color
White

Application
Determination of cement and other powder material fineness

Power Supply
Electric

Temperature
Ambient (Typically 10C - 35C)

Specimen Size
6.5 g to 3.25 g (depending on sample type)

Material
Stainless Steel

Number of Specimens
Single specimen at a time

Product Type
Blaine Air Permeability Test Apparatus

Usage
Laboratory apparatus for cement fineness testing

Capacity
One test per operation

Machine Weight
Approx. 3.5 kg

Test Speed
Manual Operation

Test Width
Standard Cylinder (12.7 mm Diameter)

Test Stroke
Conventional Blaine Operation

Control Mode
Manual

Maintenance
Minimal, easy cleaning and oil refill

Color
Light Grey/Blue (as per supplier stock)

Manometer Capacity
Up to 12 ml fluid

Powder Chamber Volume
Sound construction for repeatable specimen packing

Construction Material
Machined Metal Base with Borosilicate Glass U-Tube Manometer

Fineness Standard
IS:4031, ASTM C204, EN196

Included Accessories
Rubber Sucker, Filter Paper, Plunger, Perforated Disc, Non-hygroscopic Manometer Oil, Spare Parts Kit

Manometer Fluid Type
Naphthyl Phthalate or Dibutyl Phthalate

Blaine Air Permeability Test Apparatus Trade Information

Minimum Order Quantity
01 Box

Supply Ability
1 Box Per Month

Delivery Time
2-3 Week

About Blaine Air Permeability Test Apparatus

Blaine Air Permeability Test Apparatus

The fineness of cement has a significant effect in its physical properties when used in concrete. Generally the finer the cement powder, the more rapid the concrete will set, as there is an increase in its surface area. The measure of fineness is usually undertaken by sieving, and the result assessed against the cement standard for compliance. The Blaine air permeability apparatus is used to determine the fineness of Portland cement in terms of the specific surface expressed as total surface area in square centimetres per gram of cement. The Blaine apparatus draws a defined volume of air through a prepared bed of cement of defined porosity.

Superior Precision and Construction

Featuring a stainless steel body and borosilicate glass U-tube manometer, this apparatus is built for lasting performance and highly repeatable results. Its powder chamber is engineered for consistent specimen packing, ensuring accurate comparative fineness readings across a range of cement and powder materials.

Easy Maintenance and Simple Operation

Designed with hassle-free cleaning and oil refill in mind, the Blaine apparatus is easy to maintain and operate. All essential accessories and a spare parts kit are included, keeping downtime minimal. Its bench-top, compact build makes it suitable for any laboratory environment without compromising on accuracy.

Reliable Results Across International Standards

Meeting IS:4031, ASTM C204, and EN196 fineness standards, this apparatus facilitates compliance with global quality norms. Its range of 200-6000 cm2/g and 1 cm2/g resolution enable laboratories to perform detailed and reliable permeability measurements required for quality control and certifying cement powders.

FAQ's of Blaine Air Permeability Test Apparatus:

Q: How does the Blaine Air Permeability Test Apparatus measure cement fineness?

A: It determines cement fineness by measuring the time required for a fixed quantity of air to flow through a compacted powder sample in a standard cylinder, using a U-tube manometer filled with compatible oil. The resulting air permeability is used to calculate the specific surface area (fineness) in cm2/g.

Q: What are the benefits of using a borosilicate glass manometer and machined metal base?

A: Borosilicate glass offers chemical resistance and clarity for direct liquid level observation, while the machined metal base provides stability and durability. Together, they ensure precise readings and long service life under frequent laboratory use.

Q: When should I use the Blaine Air Permeability Apparatus in a testing process?

A: Use this apparatus whenever you need to determine the specific surface area (fineness) of cement or fine powders as part of quality control, raw material assessment, or compliance with IS:4031, ASTM C204, or EN196 standards.

Q: Where is the ideal environment to operate this apparatus?

A: It is best used in laboratories with controlled temperature (10C-35C) and ambient humidity. The compact, bench-top design allows for flexibility in placement within a laboratory setup.

Q: What materials can be tested using this apparatus, and what specimen sizes are supported?

A: It is primarily intended for cement and similar powdery materials, with single specimen sizes of 6.5 g to 3.25 g, depending on the type of sample being tested.

Q: What process is involved in conducting a fineness test with this apparatus?

A: The process involves packing the powder sample into the chamber, connecting the manometer, filling with the specified oil, and manually drawing air through the sample. The liquid level movement on the scale is timed, and this data is used to calculate specific surface area.

Q: What are the main advantages of this apparatus for laboratories?

A: Key advantages include high repeatability, simple manual operation, minimal maintenance, accurate and direct observations via the manometer, and compliance with multiple international standards for cement fineness testing.

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