Acid brick or acid resistant brick is a specially made form of masonry brick that is chemically resistant and thermally durable. Acid brick is created from high silica shale and fired at higher temperatures than those used for conventional brick. Some manufacturers create the brick by baking it for over a week. It has an average compressive strength of approximately 23,000 PSI.
The ASTM specification C-279 creates specifications for acid brick properties. Acid brick is not resistant against hydrofluoric acid or strong alkali.
Acid & Alkali Proof Bricks are available in general size of 230mm x 144mm x 38mm thick & 230mm x 114mm x75mm thickness.
For large size Reaction Vessles, RCC tanks & Chimneys, Lagoons, Sulphur melting pits, galvanizing & Pickling Tanks we recommend 75mm thick Acid proof Bricks application and installation.
For Chemical process floor, Medium size of Vessels, Tanks, Towers & Pits We Recommend 38mm thick Acid Proof Bricks application and installation.
These Acid Proof Brick are Bedded & Jointed with our different Acid Proof Cements & Resin Base Mortars. The Selection of Acid Proof Cements being used in Acid Proofing application are based on the chemical conditions, temperature 7 pH value of each Acid, Alkali or solvents used in respective Industrial Plants.