AS 4133.4.1-1993

1 - AS 4133.4.1:1993 METHODS OF TESTING ROCKS FOR ENGINEERING PURPOSES - ROCK STRENGTH TESTS - DETERMINATION OF POINT LOAD STR...
1 - METHOD
1 - 1 SCOPE
1 - 2 APPARATUS
1 - 3 PROCEDURE
1 - 3.1 General
2 - 3.2 Diametral test
2 - 3.3 Axial test
2 - 3.4 Block and irregular lump test
2 - 3.5 Anisotropic rock tests
2 - 4 CALCULATIONS
3 - 5 TEST REPORT

AS 4133.4.1-1993 sets out the method for determining the strength of rock specimens in the field using portable equipment.

This Standard sets out the method for determining the strength of rock specimens in the field using portable equipment. Specimens in the form of either rock core (the 'diametral' and 'axial' tests) or irregular lumps (the 'irregular lump' test) are broken by application of a concentrated load using a pair of conical platens. A point load strength index, Is(50), is obtained and may be used to classify rocks by strength.

First published as AS 4133.4.1-1993.