---
title: "Cement Fineness Test"
description: "Automatic Blaine apparatus for cement fineness testing — laboratory workflow, k calibration, EN 196-6 and ASTM C204 compliance, plus links to VTR-1016, the Blaine calculator, and glossary."
publishedAt: "2026-06-03"
url: "https://vectorbtc.com.tr/cement-fineness-test/"
---

This application note is a practical guide to repeatable **Blaine air permeability** testing for cement specific surface area on an automatic apparatus. For binding requirements, follow the [EN 196-6 summary](/resources/standards/en-196-6/), [ASTM C204 summary](/resources/standards/astm-c204/), and your accredited quality system. Use the [Blaine fineness calculator](/resources/calculators/blaine-fineness/) as an auxiliary check.

## 1. Preparation and setup

### Environmental conditions

For reliable operation and measurement, keep the laboratory at **18–22 °C** and at most **65 % relative humidity**. Mount the instrument on a level, vibration-free bench.

### Manometer liquid level

After confirming the kit is complete (permeability cell, manometer liquid, filter papers, software), fill the manometer carefully. The bottom meniscus must align with the lower mark on the tube. Avoid air bubbles in the tubing during filling.

## 2. HMI and software configuration

### Interface control

All configuration and test steps are managed on the built-in **touchscreen HMI**.

### Temperature calibration

Compare the internal temperature sensor with an external thermometer; enter **offset** values in the HMI menu if needed.

### Material definition and standard

Select the applicable **EN** or **ASTM** method. Enter cement **density** and **porosity** accurately on the HMI — small errors in these fields invalidate the calculated specific surface.

## 3. Device constant (k) calibration

### Reference material (Blaine sand)

Blaine testing is comparative; calibrate with a **certified reference sample** (Blaine reference sand). Shake the reference thoroughly to break agglomerates. Store it so it does not pick up moisture from prolonged air exposure.

### Constant calculation

Compact the reference bed (filter paper and perforated disc) with the piston. The instrument performs **three measurements** on the reference and computes **k** from the average. This constant scales all subsequent production tests.

## 4. Cement test workflow

### Weighing

Add the cement type to the on-screen database. Weigh the target mass calculated from the entered density on a precision balance.

### Bed preparation and compaction

Place **one** filter paper in the cell, add the weighed cement, then **a second** filter paper. Brush excess powder from the cell wall. Compact to the specified height and density with the tamper (piston).

### Critical tip (failure prevention)

After compaction, withdraw the piston **slowly**, with a slight twist about its axis. Pulling the piston quickly can create vacuum in the cell, crack or disturb the bed, and void the test.

### Automatic measurement

Seat the cell in the instrument and start the test. Airflow starts automatically; photoelectric sensors record manometer transit time.

### Result

The instrument combines transit time, calibration constant **k**, and ambient temperature to report specific surface in **cm²/g** (or **m²/kg**) on the HMI.

## 5. Safety and periodic maintenance

### Personal safety

Cement is alkaline — avoid skin and eye contact. Wear gloves, safety glasses, and a lab coat during testing.

### Filter paper rule

Use **two new** filter papers every test. Used papers clog and artificially lengthen flow time, biasing results.

### Cleaning and maintenance

After each test, clean the cell, piston, and perforated disc free of cement residue. Wipe optical sensors behind the manometer tube periodically.

### Shutdown and storage

When idle, plug the cell port to keep out dust and prevent manometer liquid loss. For transport or long storage, withdraw manometer liquid with a syringe to protect electronics.