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AUTOBLAINE PLUS for automatic blaine tests of cements

AUTOBLAINE PLUS: automatic apparatus for determining the specific surface area of cement (in cm2/g) according to the Blaine permeability method.

The IBERTEST AUTOBLAINE PLUS equipment automatically runs the test to determine the specific surface of the cement by Blaine permeability method, under the following testing standards:

  • EN 196-6: “Methods of Testing Cement. Determination of fineness “.
  • ASTM C-204: “Fineness of Hydraulic Cement by Air Permeametry Method”.

Determining the specific surface area by Blaine method is done primarily to control the uniformity of the milling process in cement factories, but also is applied to other powdery materials such as slag or fly ash.

Ready to use!

The AutoBlaine Plus equipment is supplied with everything needed to start working: complete blaine cell, manometric liquid, standard material reference 114q  for calibration, filter paper discs, …

Consultation or budget requests

Product Description

Fundamentals of the Blaine test

In the Blaine permeability test, an amount of cement is introduced into a cylindrical cell, where it is compressed to a fixed volume, then passing a defined volume of air through the compacted cement.

The resistance to this air flow is inversely proportional to particle size, the larger the particles more gaps are created through which air can flow. Therefore, a finer cement exerts more resistance to air flow than a course cement. Through an experimental formula ( Blaine method ) can make an estimate of the surface area, which will be greater the finer the cement is.

Advantages of IBERTEST AUTOBLAINE PLUS for the Blaine permeability tests of cements.

  • The PLUS AUTOBLAINE performance results surpass the accuracy, precision and repeatability of the manual method, since errors in the measurements of time are much lower. The resolution of flow time reading is 0.01 s (100 times better than required by the standard) .
  • AUTOBLAINE PLUS meets validation requirements required of automatic methods for determining the fineness Blaine as described in ASTM C 204-07 chapter 12 .
  • The equipment should be calibrated using a cement known specific surface pattern , such as the NIST standard cement 114Q. For best results the test should be performed in a temperature-controlled room.

Automatic operation

The operation of AUTOBLAINE PLUS is automatic regarding:

  • Automatic calibration with calculation of the K equipment-constant.
  • Execution of test: aspiration of fluid into the manometer and accurate measurement of the pass time of the liquid between marks.
  • Displaying, in real time, time, temperature, constant K and step time readings between marks.
  • Performing of all calculations, showing the results on the screen.
  • Storage of test results.

Advantages of the AUTOBLAINE PLUS for users and laboratories of testing cements, mortars and other materials.

  • 5,7 ” touch screen
  • On screen wizard for conducting the tests, including specific protocols for test carried according to EN 196-6 or ASTM C 204.
  • The wizard displays the weight of cement to be introduced into the cell, calculated as a function of the cement density, the porosity of the compacted layer and the volumen of the selected Blaine cell.
  • For calibration is recommended to use a primary standard, such as 114Q Standard Reference Material ( Portland cement with certified value of the surface area), but other secondary reference cements can be used on your own lab. The memory of the apparatus stores the data for up to 5 different standard cements.
  • The temperature probe measurement is also adjustable (via password) to calibrate respect to an external certificate thermometer.
  • Can enter up to 20 different types of cement and calculations specific to each , by varying parameters such as density, porosity of the compacted layer, etc.
  • You can enter up to 5 Blaine cells, identifying each cell with a name, and indicate the volume (in cm3) of compacted cement layer for each cell. This information is obtained by calibrating the cell according to the method described in the standard or using the value specified in the IBERTEST certificate of verification.
  • The IBERTEST Blaine cells have been verified according to standard. Also, we offer our service of re-calibration of your Blaine cells.
  • The AUTOBLAINE PLUS has internal memory to store up to 1000 tests. The tests stored in the computer’s memory can be exported to a computer (via a USB 2.0 connection), so they can be analyzed by the Microsoft Excel program.
  • Selectable operation languages: Spanish, English, French and Portuguese.

Standard supply:

  • Blaine cell, made of stainless steel, including plunger and perforated disc. 
  • Blaine cell support, made of stainless steel, to keep the cell in a vertical position and facilitate the introduction of the cement sample. 
  • Extractor rod, to extract the perforated disc and the sample after tested.
  • Manometrid liquid (light oil). Bottle of 50 mL.
  • Filter paper discs Ø 12,7 mm, degree of filtration medium. Box of 1000 pcs.
  • Clamp for grabbing the filters discs.
  • Stainless-steel double spatula with flat curved ends
  • Plastic funnel to fill the cell.
  • Brush and cleaning brush
  • Rubber plug for tightness testing.
  • Pasteur plastic pipette for filling the tube.
  • 3 vials of 114Q Standard Reference Material. Portland cement specific surface with NIST certificate.

Accessories and spare parts

  • 114Q Standard Reference Material. Portland cement specific surface with NIST certificate. Box of 20 vials. Ref 210-101160
  • Blaine Cell, with plunger and perforated disc. Ref 210-103564
  • Verification of Blaine cell volume. Issued by IBERTEST metrology laboratory according to EN 196-6 procedure. With internal verification certificate. Ref 510-100015
  • Filter paper discs Ø 12,7 mm, degree of filtration medium. Box of 1000 pcs. Ref. 210-100464
  • Manometric tube. Ref 210-100018
  • Manometrid liquid (light oil). Bottle of 50 mL. Ref. 210-100154





Color LCD 5,7” touch screen

Level detectors

Precision photodiodes for detecting upper and lower levels and additional safety level detector. To increaseaccuracy, comprises backlight in red by means of a LED.




Detachable protective screen, made in polycarbonate, with stainless steel frame

Temperature resolution


Manometric liquid

Light mineral oil with optimal viscosity. Non-toxic (safety datasheet is comprised)

Predefined testing methods

On-screen wizard to perform the tests, including specific protocols for conducting the test according toEN 196-6 or ASTM C 204.The wizard calculates automatically the weight of cement to test according to the measured density,desired porosity and verified volume (cement bed) of the Blaine cell.

Test development

Real time displaying of temperature, constant K, passing time and other parameters.

Calibration standards

Up to 5 reference cements as standards in each testing methods EN 196-6 or ASTM C 204

Cement types

Up to 20 different types of cement can be memorized (more cements on request) Independent calculation methods for each cement type

Blaine cells

Up to 5 Blaine cells can be selected for calculations.User can change and memorize the cement bed volume of all his Blaine cells.


The apparatus has an internal memory to store 1000 test. when 1000 test have been developed the apparatus shows an re-calibration advise, according with the standard.

PC conection

USB output. Allows to export the memorized data to a Windows Excel file.


Spanish, English and French (others on request)

Visual alarms

The computer displays a warning if the temperature measured by the probe is outside the range imposedby the Testing Standard.The temperature sensor is adjustable to match with an external certified thermometer (requires password)

Net weight

13,5 kg


270 x 400 x 410 mm (width x depth x height)

Power supply

Single phase 110-240 V + G ~ 50 / 60 Hz