Find the most up-to-date version of ASTM C at Engineering ASTM C pdf – Download as PDF File .pdf), Text File .txt) or read online. ASTM C Standard Test Methods for Concrete Pipe, Manhole Sections, or Tile (External Load Crushing Strength). Lab ID: Use To determine first-crack.
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Place the upper bearing so that it is aligned with these marks. Hydrostatic External Joint Test Method.
The difference zstm the dry mass and the immersed mass of the gasket, measured in grams, is the volume of the gasket in cubic centimeters. For self-lubricating gaskets, the tube containing the lubricant must be rolled over the gasket body and held under slight pressure as the measurement is taken.
ASTM C – 18b Standard Test Methods for Concrete Pipe, Manhole Sections, or Tile
Wooden strips shall be straight, have a cross section of not less than 2 in. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phone c4977, faxor service astm.
Therefore, no calculations of precision and bias are presently capable of being performed. Additional timber blocks or similar supports are necessary to elevate the test pipes.
The bearing face of the upper bearing shall not deviate from a straight line by more than 1? The crack is 0. The second load as de? The test specimen is? Report the result as an average of the three 11? The alkalinity rating of the concrete mixture is one of the design criteria used to predict the service life of concrete pipelines where hydrogen sul? The specimen under astn shall be free of all visible moisture prior c4997 the initiation of the test. Then remove the specimens and weigh in accordance with 7.
Joint Shear Test The absorption, as calculated by the Test Method B procedure, shall be considered satisfactory when its value does not exceed a value that is 0. c49
ASTM C497 – 18
When the absorption, as computed by the Test Method B procedure, does not meet the speci? Warning—Block or restrain the test pipe assembly horizontally to prevent any inadvertent pipe movements. Without disturbing the measuring device, slide the gasket out of the joint recess.
ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Measure the point on the joint gasketbearing surface immediately under the point where the gasket measurement was taken. These tests are performed to establish whether or not the installed step has sufficient strength to withstand the speci?
NOTE 1—The user of these test methods is advised that multiple points of load appllications to the upper bearing will permit use of lighter beams without excessive de? Continue to boil for 30 seconds, and then cool. 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.
ASTM C – 18 – Standard Test Methods for Concrete Pipe, Manhole Sections, or Tile
Historical Version s – view previous versions of standard. Welded Splice Pull Test. A surfactant shall be added to the c47 to minimize air bubbles from clinging to the gasket material. If the ratio of length to diameter is less than two, make allowance for the ratio of length to diameter by multiplying the compressive strength by the applicable correction factor given in the following table determine values not given in the table by interpolation: Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.
Permeability Test Method 9. After asttm and weighing as speci? If the pipe shows moist or damp spots on the outer surface of the pipe at that time, continue the tests for a period not to exceed 24 h at the option of the manufacturer. An additional block shall be used to transmit the force from the test machine to the test pipe joint.
Calculate the test load as follows: Make an index mark on the gasket cross-section with the? Weigh specimens weighing more than 1 kg to an accuracy of 1 g. This standard has been approved for use by agencies of the Department of Defense. Continue the boiling for 3 h.
Place the gasket index mark at the zero point on the measuring scale and carefully roll the uncut gasket loop without sliding or stretching. A calibration curve shall be used. Titrate the mixture until the pH stays above 6.
Hard rubber strips shall have a durometer hardness of not less than 45 nor more than Raise the pressure of the water in approximately 1 min to the required level and hold for the speci? The wood shall be sound, free of knots, and straight and true from sstm to end.
Continue the boiling for 5 h. At the option of the manufacturer, either or both the lower bearing and the upper bearing shall extend the full length or any portion of the wstm of the specimen. There is no widely accepted method of analysis for differential shear through the joints in buried concrete pipes.
At the end of the 5-h boiling period, turn off the heat, and allow the specimen to cool in the water to room temperature c479 natural loss of heat for not less than 14 h nor more than 24 h. Users of this standard are expressly advised that determination of the validity of any astn patent rights, and the risk of infringement of such rights, are entirely their own responsibility. Manhole Step Test Methods A vertical test load F shall be applied to the suspended portion of the test joint until the total differential load, including the weight of a pipe, is pounds per foot of pipe diameter.