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                           Acid-proof Bricks & Mortar

 

ACID PROOF BRICKS (IS 4860)
Characteristic Class I Class II
Water Absorption (%) max. 2 4
Flexural Strength (kg/cm2) min. 100 70
Compressive Strength (kg/cm2 min. 700 500
Resistance to Acid/ Loss in weight (%) max. 1.5 4.0

 

ACID RESISTANT MORTAR (IS 4832 - Part I)
Property Sodium Silicate Type Potassium Siliate Type
Working time (minutes) min. at 27±2șC 15 20
Flexural Strength (kg/cm2) min. at 7 days 35 40
Compressive Strength (kg/cm2 min. at 7 days 100 150
Bond Strength (kg/cm2) min. 5
Absorption of Toluene (% by weight) max. 18