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π SIMILAR VOLUMES
Past efforts of the Nigerian Railway Corporation to produce shoe brake blocks locally have proved unsuccessful; the brake blocks produced are defective, and are highly susceptible to brittle (catastrophic) failure. The objective of this work was to undertake failure analysis of locally produced shoe
## Ε½ . Roughness corrugation, waviness on the tread of a rolling railway wheel leads to vibrations in wheels, bogies and superstructure and also in rails, sleepers and roadbed. These vibrating components radiate noise to the surroundings. A lowering of the noise levels from tread-braked freight ca
In this study, failed samples of railway brake blocks were analysed to ascertain the causes of failure. Seven samples of varying charge constituents were produced in a permanent mould. Mechanical tests (hardness, compression and impact), spectroscopic analysis and microstructural investigations were