Perfect Insulating Wares | Acid Resistant Clay Bricks
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Acid Resistant Clay Bricks

STANDARDS SPECIFICATION OF ACID RESISTANT CLAY BRICKS AS PER IS:
4860-1968 AND OUR VALUES

ACID RESISTANT CLAY BRICKS: 4860-1968 Specification and Values.
 PERFORMANCE REQUIREMENTS OF UNGLAZED ACID RESISTANT CLAY BRICKS
S.No. CHARACTERSTICS REQUIREMENT FOR OUR VALUES
Class-I Bricks Class-II Bricks Class-I Bricks Class-II Bricks
i) Water absorption in Percent (Max.) 2 4 0.5 to 1 2.5 to 3.5
ii) Flexural Strength kg/cm2 (Min.) 100 70 >100 >70
iii) Compressive Strength kg/cm2 Min. 700 500 >700 >500
iv) Resistance to acid in Percent (Max) Loss in weight shall
not exceed 1.5 %
Loss in weight shall
not exceed 4.0 %
0.5 to 1 1 to 3
v) Resistance to wear Average wear shall
not exceed 2mm
Not Specified within the limits within the limits
vi) Warpage in mm Not more than 2.5mm Not more than 2.5mm within the limits within the limits
vii)  Tolerance in dimensions
 a) Length (+,-) in mm  3.5 3.5   within the limits within the limits
 b) Breadth (+,-) in mm  2.0 2.0
 c) Thickness (+,-) in mm  1.0 1.0