Blain Air Permeability Apparatus
The Blain Air Permeability Apparatus is designed for precise determination of fineness of cement, pozzolanas, and other powdery materials. The fineness is expressed as total surface area in cm² per gram of material under test, providing critical quality data for construction and laboratory applications.
The apparatus consists of a standard brass permeability cell (12.5 mm inside diameter) with a perforated metal disc and plunger, a U-tube glass manometer with rubber coupling mounted on a wooden stand, latex rubber tubing (20 cm long), filter paper discs, and 250 ml dibutyl phthalate liquid. This setup ensures accurate measurement of powder fineness and is widely used in civil engineering laboratories, cement quality control, and research facilities.
Determines fineness of cement, pozzolanas, and powders
Brass permeability cell (12.5 mm ID) with plunger and perforated disc
U-tube glass manometer with rubber coupling for accurate readings
Latex rubber tubing and filter paper discs included
Supplied with 250 ml dibutyl phthalate liquid
Mounted on wooden stand for stable operation
Reliable, repeatable, and precise laboratory measurements
Permeability Cell: Brass, 12.5 mm inside diameter, with perforated metal disc and plunger
Manometer: U-tube glass with rubber coupling, mounted on wooden stand
Tubing: Latex rubber tubing, 20 cm long
Filter Paper: Included for accurate measurement
Liquid: 250 ml dibutyl phthalate for testing
Mounting: Wooden stand for stability during operation
Accuracy: High precision in total surface area measurement (cm²/g of material)
Material Tested: Cement, pozzolanas, and other powdery construction materials
High precision in fineness measurement
Durable brass permeability cell and manometer setup
Easy handling and operation in laboratories
Provides accurate surface area data per gram of material
Suitable for cement, pozzolanas, and other fine powders
Determination of cement fineness in laboratory and quality control
Measuring fineness of pozzolanic materials for concrete
Assessing powdery construction materials in research labs
Civil engineering material testing and quality assurance
Cement and construction material R&D applications
