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Chemical Resistant Brick Properties

All Belden chemical resistant brick are manufactured to conform with or exceed ASTM C279, and are generally available in the Type II designation. In some cases Type III are available. Typical Properties of Belden chemical resistant brick and minimum requirements regarding the ASTM C279 specification standards are shown in the following table:

TYPICAL PHYSICAL PROPERTIES OF BELDEN SHALE & FIRECLAY CHEMICAL RESISTANT BRICK
Property Test Standard Red Shale Buff FireClay Reference
Bulk Density, lbs./cu.ft ASTM C20 135 - 145 140 - 150 The Bishop Materials Laboratory
(gm/cc) 2.16 - 2.32 2.24 - 2.4
Water Absorption, % ASTM C20 < 4 < 4 " "
Solubility in Sulfuric Acid. Loss in Mass, % ASTM C279 < 3 < 3 " "
Apparent Porosity, % ASTM C20 8 - 13 7 - 10 " "
Modulus of Rupture, PSI ASTM C67 2500 - 3000 1500 - 2000 " "
(MPa) 17.2 - 20.7 10.3 - 13.8
Compressive Strength, PSI ASTM C67 20,000 - 25,000 20,000 - 25,000 " "
(MPa) 137.9 - 172.4 137.9 - 172.4
Coefficient of Expansion, in/in/°F x10-6 --- 4 - 5.5 2 - 3.5 Corrosion and Chemically Resistant Masonry (1)
(mm/mm/°C x10-6) 7.2 - 9.9 3.6 - 6.3
Thermal Conductivity, BTU-in/hr.-ft.2-°F ASTM C236 7 - 9 6 - 10 " "
(W/mK) 1 - 1.3 0.9 - 1.4

(1) Corrosion and Chemically Resistant Masonry Materials handbook by Walter Lee Sheppard, Jr., P.E.B. Chem., M.S.C.C.R.M., Inc. 1988
NOTE: ASTM standard to fit current year (with the last number being the year of the last update)

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PHYSICAL AND CHEMICAL REQUIREMENTS - ASTM C279
Designation Modulus of Rupture (Brick or Tile Flatwise) min.PSI (MPa) Water Absorption Maximum % by 2 hr. Boiling Test H2SO4 Solubility Maximum % Weight Loss
  Average of 5

Brick or Tile
Low Individual
Average of 5

Brick or Tile
High Individual
Average of 5

Brick or Tile
TYPE I 1250 (8.6) 1000 (6.9) 6.0  7.0 20
TYPE II 1250 (8.6) 1000 (6.9) 4.0  5.0 12
TYPE III 1250 (8.6) 1000 (6.9) 1.0  1.5 8

Please Note: The information given in this reference table should be used as a guide only. No guarantee is made nor can we assume any liability in connection with the use of this information. Please contact The Belden Brick Company for specific recommendations.

Mortar manufacturers should be consulted for their recommendations in connection with chemical resistant brick construction. For names and addresses of mortar manufacturers, please Contact Us