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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A number in parentheses indicates the year of last reapproval. A superscript epsilon e indicates an editorial change since the last revision or reapproval. This standard has ast approved for use by agencies of the Department of Defense.
The test methods described are used in production testing and acceptance testing to evaluate the properties provided for in the speci? It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Current edition approved Oct.
ASTM C497 – 18
Originally approved in Last previous edition approved in as C — 04e1. The test specimen shall be supported on a lower bearing of two parallel longitudinal strips and the load applied through an upper bearing Figs.
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 length of the specimen. Wooden strips shall be straight, have a cross section of not less than 2 in. Hard rubber strips shall have a durometer hardness of not less than 45 nor more than They shall be rectangular in cross section, having a width of not less than 2 in.
The rigid base shall be at least 6 in. The interior vertical sides of the strips shall be parallel and spaced a distance apart of not more than 1 in.
The bearing faces of the lower strips shall not vary from a straight line vertically or horizontally by more than 1? The wood shall be sound, free of knots, and straight and true from end to end.
It shall be fastened to a steel or wood-faced steel beam of such dimensions that de? The bearing face of the upper bearing shall v497 deviate from a straight line by more than 1?
When a hard rubber strip is used on the bearing face it shall have a durometer hardness of not less than 45 nor more than 60, and shall have a width of not less than 2 in. The width of the? The load shall be applied either at a single point or at multiple points dependent on the length of the specimen being tested and the rigidity of the test frame.
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? A calibration curve shall be used. The machines used for performing the three-edge-bearing tests shall be veri?
Place the upper bearing so that it is aligned with these marks. This rate of loading shall be continuous until the speci? If both the design strength and the ultimate strength are being determined, a speci? The crack is 0. Measure the width of the crack by means of a gage made from a leaf 0.
NOTE 2—As used in this speci? NOTE 3—Ultimate strength of concrete pipe in the buried condition is dependent on varying soil bedding factors and varying failure modes and shall have no relationship to the ultimate strength as de?
ASTM C – 18 Standard Test Methods for Concrete Pipe, Manhole Sections, or Tile
For plain end pipe, no bell or spigot, the length L shall be the overall length. If cores are cut from the wall of the pipe and tested, the length to diameter ratio shall lie between one and two after the curved surfaces have been removed from the cut core.
Before making the compression test, cap the ends of the specimen in order to meet the requirements of Practice C See also Practice C 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: Therefore, 4c97 calculations of precision and bias are presently capable of being performed.
Flat Slab Top Test Method 5.
If a frame or riser has been designed to be? Apply the test load to the riser or frame as assembled to the? If no access opening has been provided to the? Calculate the test load as follows: Core Strength Test Method 6. In cases of disagreement arising from differences in values reported by the owner and the manufacturer when using this test method for acceptance testing, the statistical bias, if any, between the laboratory of the owner and the laboratory of the manufacturer should be determined with each comparison being based on testing specimens randomly drawn from one pipe of the type being evaluated.
Absorption Test Method 7. The test specimen is? Two alternative procedures for conducting the test are presented. Test Method A is the standard test and referee and will require 3 to 6 days to complete. Test Method B is intended as an accelerated test that requires about 11? Dry specimens with a wall thickness of 1. Use the last 6 h of the minimum drying time to determine whether or not the sample had obtained the proper dried mass.
Use distilled water, rain water, or tap water that is known to have no effect on test results. Heat the water to boiling in not less than 1 h and not more than 2 h. Do not apply live steam to the water to shorten the preboil period until 1 h of heating by gas or electricity has been completed.
Continue the boiling for 5 h. 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 by natural loss of heat for not less than 14 h nor more than 24 h. Do not apply live steam to the water to shorten the preboil periods until 1 h of heating by gas or electricity has been completed.
Continue the boiling for 3 h. At the end of the 3-h boiling period, turn off the heat and cool the specimen for a period of 3 h by running cold tap water into the boiler, or by placing the specimen in a separate container of water. Remove the remaining super? Weigh the specimen immediately following blotting.
Weigh specimens weighing more than 1 kg to an accuracy of 1 g. Report the results separately for each specimen. Report the result as an average of the three 11? 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. When the absorption, as computed by the Test Method B procedure, does not meet the speci?
After drying and weighing as speci? Then remove the specimens and weigh in accordance with 7. NOTE 4—There is no signi? Therefore, results of two properly conducted tests by the same operator on the same material should not differ by more than 0.
NOTE 5—The numbers in 7. A statement will be included when proper data have been collected and analyzed. Statements will be included for each when the proper data have been obtained and analyzed. Hydrostatic Test Method 8. The joint is de? The specimen under test shall be free of all visible moisture prior to the initiation of the test.
No mortar or concrete coatings,? If being tested in a vertical position, the gage shall be placed at or as close to as is practical above the joint or section being tested.
If being tested in a horizontal position, the gage shall be placed to measure pressure at or as close to as practical above the horizontal axis. Raise the pressure of the water in approximately 1 min to the required level and hold for the speci? There shall be no visible leakage. If leakage occurs, the manufacturer is not prohibited from extending the soak time to 24 h.
Permeability Test Method 9. Perform tests by placing the specimen to be tested, with the spigot end down on a soft rubber mat or its equivalent, weighted if necessary, and kept? Make the initial inspection approximately 15 min after the test has begun. 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.
Examine the pipe during the extended period for existence of moist or damp spots. Manhole Step Test Methods These tests are performed to establish whether or not the installed step has sufficient strength to withstand the speci? The attachments from the heads of each testing device to the rung of the step are to be sufficiently sturdy to preclude any bending of the attachment and rung over the length of the attachment. The attachments to the rung are to be 31? The second load is applied at a uniform rate until the speci?
The second load as de? Cylinder Strength Test Method Cylinder specimens of sizes other than 6 by 12 in. Before making the compression test, cap the ends of the specimen to meet the requirements of Practice C or Practice C In cases of disagreement arising from differences in values reported by the owner and the manufacturer when using this method for acceptance testing, the statistical bias, if any, between the laboratory of the owner and the laboratory of the manufacturer should be determined with each comparison being based on testing specimens randomly selected from the specimens available for the type of concrete product being evaluated.
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