The Motorized Blaine Air Permeability equipment is used in construction and material testing to determine the particle size of powders like Portland cement lime. It provide an actual measurement of specific surface area which is very significant in evaluating the quality and efficiency of these materials.

The apparatus uses controlled airflow to measure the resistance posed by the powder sample, helping to estimate its surface area.

The fineness of cement is assessing the strength and durability of the concrete. Cement with more surface area will then cause a faster reaction with water and hence a shorter set time for the cement that has a small surface area. This maybe is quite vital, especially in areas where early strength development is needed. However, if cement is too fine, there is a tendency of shrinkage coupled with formation of cracks on the construction. This means that proper measurement of the size of the particles in the mixture is critical so that the above balance is attained.

Motorized Blaine Air Permeability working principle is based on the permeability of air through powder sample. U-tube glass manometer has been incorporated in the device to measure the pressure differential across the cement as air flows through it. A stainless-steel cell, containing a disc and a plunger with a number of holes, prevents errors of air flow through the material.

It is then calculating by determining of air permeability whereby a specific volume of air is allowed to pass through the powder in a given period of time. This information is then utilized to calculate the specific surface area which is which is a reflection of the material’s particle size.

The Motorized Blaine Air Permeability apparatus is made of high-quality material that gives it durability and accuracy. Its stainless-steel cell is constructed to contain the cement sample during the testing while at the same time facilitating proper airflow. Perforated disc and plunger are also part of the working apparatus of the tested device with an additional function of providing uniform airflow through the material.

A glass U-tube manometer is used in this experiment, which is fixed on a steel stand to avoid any types of vibration during experiment. This manometer is very important because it is used to measure the pressure differential which is created by the air moving through the sample In clarity of the reading, the operators can be able to get very good results.

With regard to the features of the Motorized Blaine Air Permeability, it is notable that it meets industry standards. It complies with ASTM C204 a globally identified test procedures that measures the fineness of hydraulic cement as recommended by AASHTO T153.