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Calculation For Bricks Required per Unit Volume

F o r m u l a

K e y T o S y m b o l

a	Inside arc of circle type brick	d	Inside diameter of ring formed by radial Brick
A	Outside arc of circle type brick	D	Outside diameter of ring formed by radial brick
c	Inside chord of circle or wedge type brick	T	Radial dimension of brick
C	Outside chord of circle or wedge type brick	Ø	Theta, the included angle of brick
r	Inside radius of radial brick	π	Pi - 3.1416
R	Outside radius of radial brick	S	Total number of a given radial brick required to form a ring