ASTM C67-14 pdf free download.Standard Test Methods for Sampling and Testing Brick and Structural Clay Tile.
1.1 These test methods cover procedures for the sampling and testing of brick and structural clay tile. Although not necessarily applicable to all types of units, tests include modulus of rupture, compressive strength. absorption. saturation coefficient, effect of freezing and thawing, etilorescence, initial rate of absorption and determination of weight, size, warpage. length change, and void area. (Additional methods of test pertinent to ceramic glazed facing tile are included in Specification C126.)
1.2 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.
Note I—The testing laboratory performing this test method should be evaluated in accordance with Practice C1093.
1.3 The values stated in inch-pound units arc to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
4. Sampling
4. 1 Selection and Preparation of Test Speciiiiens—For the purpose of these tests, full-size brick, tile, or solid masonry units shall be selected by the purchaser or by the purchaser’s authorized representative. Specimens shall be representative of the lot of’ units from which they are selected and shall include specimens representative of the complete range of colors, textures, and sizes. Specimens shall be free of or brushed to remove dirt, mud, mortar, or other foreign materials unassociated with the manufacturing process. Brushes used to remove foreign material shall have bristles of plastic (polymer) or horsehair. Wire brushes shall not be used for preparing specimens for testing. Specimens exhibiting foreign material that is not removed by brushing shall be discardcd to ensure that damaged or contaminated specimens arc not tested.
4.2 Number of Specimens:
4.2.1 Brick—For the modulus of rupture. compressive strength, abrasion resistance, and absorption determinations, at least ten individual brick shall he selected for lots of 1 000 000 brick or fraction thereof. For larger lots, five additional specimens shall be selected from each additional 500 000 brick or fraction thereof. Additional specimens are taken at the discretion of the purchaser.
4.2.2 Structural Clay The—For the weight determination and for compressive strength and absorption tests, at least five tile shall be selected from each lot of 250 tons (226.8 Mg) or fraction thereof. For larger lots, five additional specimens shall be tested for each 500 tons (453.6 Mg) or fraction thereof. In no case shall less than five tile be taken. Additional specimens are taken at the discretion of the purchaser.ASTM C67 pdf download.