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.
|Published (Last):||2 April 2011|
|PDF File Size:||15.56 Mb|
|ePub File Size:||16.91 Mb|
|Price:||Free* [*Free Regsitration Required]|
A surfactant shall be added to the water to minimize air bubbles from d497 to the gasket material. Each core sample is then placed in a separate container and dried in an oven for one to two hours at a temperature between and degrees Fahrenheit.
ASTM C Test for Concrete Pipe, Manhole Sections, or Tile | CTL Grp
Alkalinity of Concrete Mixture Do not apply live steam to the water to shorten the preboil period until 1 h of heating by x497 or electricity has been completed. 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.
If a frame or riser has been designed to be? The samples are then pulverized to obtain percent passing a mesh sieve. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. Measure x497 mass of the gasket to the nearest gram.
See also Practice C Without disturbing the measuring device, slide the gasket out of the joint recess.
The gasket length is the distance measured at the point where the index mark retouches the scale. Cylinder Strength Test Method The interior vertical sides of asrm strips shall be parallel and spaced a distance x497 of not more than 1 in. 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.
The curved face shall be lined with a one-inch thick hard rubber strip.
ASTM C497 – 18
The concrete alkalinity is the ratio of the mass of acid neutralized by powdered concrete divided by the mass of acid neutralized by a similar sample of pure calcium carbonate. The difference in measurements is the stretched gasket height. Titrate the mixture until the pH stays above 6. This rate of loading shall be continuous until the speci? 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.
The difference in the dry mass and the immersed mass of the gasket, measured in grams, is the volume of the gasket in cubic centimeters. Weigh the specimen immediately asstm blotting.
Two alternative procedures for conducting the test are presented. Aside from the procedures, this standard also details the significance and use of and the required test apparatus for each test. All current methods of concrete pipe design assume that the installed pipes are uniformly bedded along the length of the pipeline.
Joint Shear Test Originally approved in They shall be rectangular in cross section, having a width of not less than 2 in. Manhole Step Test Methods If proven watertight under these combined conditions, hairline cracks that do not leak shall not be cause for rejection.
Last previous edition approved in as C — 04e1. When the effervescence has subsided, heat the mixture to boiling. The samples shall be immersed in satm in a closed container. When the absorption, as computed by the Test Method B procedure, does not meet the speci?
If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. Continue to boil for 30 seconds, and then cool. Gasket Lubricant Tests The total shear force on the joint is the sum of the resultants of the pipe weight and the applied force.
These tests are performed to establish whether or not the installed step has sufficient strength to withstand the astn Then remove the specimens and weigh in accordance with 7. The volume of water is then measured directly in cubic centimeters or by pouring into a calibrated tube or the water displaced shall be weighed.
Examine the pipe during the extended period for existence of moist or damp spots.
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? If being tested in a vertical position, the gage shall be placed at or as close to asmt is practical above the joint or section being tested.
ASTM C – 18b Standard Test Methods for Concrete Pipe, Manhole Sections, or Tile
Continue the boiling for 3 h. Asstm specimens weighing more than 1 kg to an accuracy of 1 g. The bearing faces of the lower strips shall not vary from a straight line vertically or horizontally c947 more than 1? Awtm standard is subject to revision at any time by the responsible technical committee and must be reviewed every? Before making the compression test, cap the ends of the specimen in order to meet the requirements of Practice C The second load is applied at a uniform rate until the speci?
Test Method B is intended as an accelerated test that requires about 11? The shear strength limit shall be noted by a sudden reduction in the applied load or shearing of the concrete.