ASTM C67 Testing of Brick and Structural Clay Tile

ASTM C67 covers procedures for testing brick and structural clay tile, including modulus of rupture and compressive strength. Full-size bricks, tiles, or solid masonry units can be used as test specimens.

ASTM C67

ASTM C67 tests include:

• modulus of rupture
• compressive strength
• absorption
• saturation coefficient
• effect of freezing and thawing
• florescence
• initial rate of absorption and determination of weight
• measurements for size, warpage, length change, and void area

Testing procedure

When testing with ASTM C67, choose specimens that are representative of the entire unit and free of dirt, mud, mortar, or other foreign materials unassociated with the manufacturing process. Next, prepare your specimens according to the standard. For measuring the modulus of rupture, compressive strength, abrasion resistance, and absorption determination for bricks, at least ten individual bricks shall be selected for lots of 1,000,000 or less. For the weight determination and for compressive strength and absorption tests of structural clay tiles, at least five tiles should be tested from each lot of 250 tons (226.8 Mg) or fraction thereof.

For the flexural test or modulus of rupture, apply a load in the direction of the depth of the unit using a testing machine. The rate of loading should not exceed 2,000 lbf (8,896 N)/min. For the compressive strength test, test your brick specimens flatwise. Apply the load up to one half of the expected maximum load, at any convenient rate, after which, adjust the controls of the machine so that the remaining load is applied at a uniform rate.

An electromechanical universal testing machine can be used for testing for flexural and compressive strength. By means of our testing expertise and modular product design, we will help find the testing solution that is right for you. Give one of our application engineers a call today for help with creating the best budget and testing plan according to ASTM C67.

Recommended Test Machine

300 Series Electromechanical Universal Test Machines

Force range of 5 kN to 600 kN (1,125 lbf to 135,000 lbf)
Adjustable test space
The most popular choice for static tension and compression tests
These dual column testers are available in both tabletop and floor standing models

Recommended Testing Accessories

ASTM C67 3-Point Fracture Brick Structural Clay Tile | GC67-849

Designed in accordance to ASTM C67
Rated to 2,225 kN (500,000 lbf)