【国外标准】 Standard Test Methods for Concrete Pipe, Concrete Box Sections, Manhole Sections, or Tile

AbstractThese test methods cover production and acceptance tests for concrete pipes, manhole sections, and tiles. Tests include procedures for evaluating external load crushing strength, flat slab top, core strength, absorption, hydrostatic, permeability, manhole step, cylinder, gasket lubricant, joint shear, alkalinity, and gasket measurements. Aside from the procedures, this standard also details the significance and use of and the required test apparatus for each test.1.1 These test methods cover testing of concrete pipe, concrete box sections, manhole sections, and tile. The test methods described are used in production testing and acceptance testing to evaluate the properties provided for in the specifications.1.2 The test methods appear in the following order:  SectionExternal Load Crushing Strength 4Flat Slab Top 5Base Section Test Method 6Core Strength 7Absorption 8Hydrostatic 9Permeability 10Manhole Step 11Cylinder Strength 12Gasket Lubricant 13Joint Shear 14Alkalinity 15Gasket Measurements 16Off-Center Hydrostatic Joint Test 17Hydrostatic External Joint Test Method 18Welded Splice Pull Test 191.3 The test specimens shall not have been exposed to a temperature below 40°F for the 24 h immediately preceding the test.1.4 If any test specimen fails because of mechanical reasons such as failure of testing equipment or improper specimen preparation, it shall be discarded and another specimen taken.1.5 Specimens shall be selected in accordance with the specifications for the type of pipe or tile being tested.1.6 A complete metric companion to Test Methods C497 has been developed—C497M; therefore, no metric equivalents are presented in these methods.1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.