|Blain Air Permeability Apparatus :
Blain Air Permeability Apparatus
The Blaine air permeability apparatus is used to determine the
fineness of Portland cement in terms of the specific surface expressed
as total surface area in square centimeters per gram of cement. The
Blaine apparatus draws a defined volume of air through a prepared bed of
cement of defined porosity.
The apparatus comprises one each of Brass or stainless steel
permeability cell 12.5mm,’U’ tube manometer with stop cock mounted on a
laminated wooden stand, perforated metal disc, plunger, Rubber stopper,
Rubber tube – 30cm long with rubber bulb.