Supports the following standards: ASTM C204, AASHTO T153
The Blaine Air Permeability Apparatus determines the fineness
of Portland cement in terms of specific surface area expressed
as the total surface area in square centimeters per gram of
mortar or cement. The Blaine works by drawing a definite
quantity of air through of bed of cement exhibiting a definitive
porosity value. The number and size of the pores in a prepared
bed of definite porosity is a function of the size of the particles
and determines the rate of airflow through the bed. This
procedure is outlined in ASTM C204, Method A & AASHTO T153.
The Civilab Blaine Air Permeability Apparatus consists of:
calibrated U-tube manometer, ground glass joint, stainless
steel test cell and plunger, rubber aspirator bulb & perforated disc.
Includes packet of filter paper, wood block for holding test cell
during filling and a funnel.
Mounted on finished metal panel with rubber-footed base.