3.2 Types of Test Methods 3.2.1 Loading A number of rock strength tests have been developed which apply a known load to a specimen of fixed geometry. There are a number of ways in which a force can be applied to a body depending on the geometry of a test piece, which can range from [...]
A significant number of tests to predict comminution characteristics have been introduced since the early work of Kick [1885] and Rittinger [1867] and fall into one of three main categories. Grinding methods were covered in Chapter 1 with the remaining types being loading and impact based. 3.1 Factors Affecting Results A number of variables in [...]
2. Fracture Mechanics Theory The study of fracture mechanics has been applied to a wide range of fields, mainly metals and rock but it can be applied to any substance that is subjected to some form of stress. In most cases the information gained is used to predict a products life span and its working [...]
1. Introduction Rock breakage behaviour has been studied since the 1920s and has been used to quantify the working limits of rock. The energy required for breakage has also been used as a means of quantifying rock comminution characteristics. A great number of different laboratory and in-situ tests have been developed since the 1920s. The [...]
The physical and mechanical properties of rock can be measured by a variety of standard tests, and studies have shown that there should be a fundamental connection between breakage in comminution and rock ‘strength’. The current study aims to develop the Ring-loaded strength (RLS) disc test, used as an industry standard for the characterisation of [...]
The Tomb is my PhD thesis that I did in less than three years, aren’t I a clever chap. Truth be told I could probably have have done it in just over two years but I was enjoying the muck about environment, and the funding The title of my thesis is a nice and slick, [...]