In abrasion test, what material is placed in addition to the specimen in the testing apparatus?(a) Metal piece(b) Stone piece smaller than specimen(c) Cast iron ball(d) Stainless steel ballThe question was posed to me in class test.I need to ask this question from Tests on Stones topic in section Materials for Construction of Basic Civil Engineering

In abrasion test, what material is placed in addition to the specimen

1.	In abrasion test, what material is placed in addition to the specimen in the testing apparatus?(a) Metal piece(b) Stone piece smaller than specimen(c) Cast iron ball(d) Stainless steel ballThe question was posed to me in class test.I need to ask this question from Tests on Stones topic in section Materials for Construction of Basic Civil Engineering
Answer» Correct choice is (C) Cast iron ball To elaborate: Abrasion TEST is used to check compatibility of stone with other material by allowing them to rub against each other, NOTING the wear RESISTANCE. Cast iron BALLS of48 mm diameter are placed in the apparatus along with the specimen.

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