Testing Of Stones This process is repeated for 30 cycles The specimens are weighed W 2 and the difference in weight is found This test is repeated thirty times and the loss in weight after every five cycles is obtained To test stone for compressive strength specimen pieces in the form of cubes or cylinders are made from samples
·carefully marked on each test piece after finishing test pieces shall be used for conducting the test in each of the conditions mentioned in and In each of these conditions separate tests shall be made for the specimen when the load is parallel to the rift and perpendicular to the rift In all twelve
Procedure of Attrition Test on Stones For the attrition test 5 kg of broken angular pieces of stones is placed in both the cylinders of Deval s attrition testing machine The cylinders are kept in an inclined position such that their axis makes an angle of 30 degrees with the horizontal
·The historical stone heritage that we inherit must be passed on to future generations not only in the same conditions that we found it but if possible in better ones Construction also demands better and more durable materials often stone The protection of these materials requires knowledge of the types of rocks and their physical properties The
·Building stones undergo several tests to determine their properties and assess their suitability for various construction purposes These tests generate information on both physical and chemical properties as well as strength and hardness characteristics By subjecting building stones to these tests engineers and architects can gather essential data that helps
· In reporting the results of a test or analysis made in accordance with this standard ifthe final value observed or calculated is to be rounded off it shall be done in accordance with IS 2 1960 1 SCOPE This standard lays down the procedure for testing the durability soundness ofnatural building stones used for constructional
·6 PROCEDURE Each test specimen to be tested is sandwiched in between two steel plates of width 25 mm thickness 10 mm and length equal to the length of test specimen see Fig 1 The load shall be applied without shock and increased continuously at a uniform rate of 200 N/s until the specimen splits and no greater load is sustained
There are various kinds of lab and field tests available for building stones or rocks These stone or rock tests are generally performed to determine the physical quality of stone materials used for construction work Few tests such as Acid test may be performed to determine the chemical quality of building material or stones Many of the known
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