Blaine Air Permeability Apparatus Manufacturer,Supplier and Exporter in India
Product Code : TVT-CMTE-10381
The Blaine Air Permeability Apparatus from Tvet Equipments determines the specific surface (fineness) of cement, a key property affecting hydration rate and early strength development.
How It Works
A prepared bed of cement of known mass and porosity is packed into the permeability cell, and air is drawn through the compacted bed at a controlled rate using a manometer-linked aspirator. The time taken for air to pass through the bed is measured, and combined with the bed's porosity and the air's viscosity, this is used to calculate the cement's specific surface area in cm²/g, following the standard calibration and calculation procedure.
Technical Specifications
| Parameter | Specification |
|---|---|
| Dimensions | 180 (L) x 140 (W) x 390 (H) mm |
| Approx. Weight | 12 kg |
Applications
The Blaine Air Permeability Apparatus is used to determine cement fineness under IS 4031 Part 2 / ASTM C204, the standard test methods for fineness of hydraulic cement by air permeability apparatus, in cement manufacturer QC laboratories checking that fineness meets specification for the intended grade of cement.
Related Products & Category
Part of Tvet Equipments' Cement & Mortar Testing Equipments range, complementing sieve-based fineness checks and setting-time apparatus in a complete cement QC test line.
Frequently Asked Questions
Q1. What does the Blaine test measure?
It measures the specific surface area of cement (its fineness) in cm²/g, by timing how quickly air passes through a compacted bed of the cement sample.
Q2. Why does cement fineness matter?
Finer cement hydrates faster, generally increasing early strength gain but also increasing water demand and heat of hydration, so fineness is closely controlled during cement manufacture.
Q3. How is the result calculated?
The result is calculated from the measured air-flow time, the known porosity of the packed cement bed, and the air's viscosity, following the standard Blaine calculation procedure.
Request a Quote
For pricing, lead times, or technical specifications on the Blaine Air Permeability Apparatus, contact Tvet Equipments for an indicative quote.
