20 ensp 0183 ensp MANUFACTUREANDPROPERTIESOFSAND LIMEBRICK ByWarrenE Emley CONTENTS Page I Introduction 3 II History 4 III Definitionanddescription 5 IV Processofmanufacture 6 V Calciumsilicate 6 VI Rawmaterials 8 1 Sand 8 Deliveryofsandtothefactory 11 2 Lime 13 Hydrationofthelime 15 3 Proportionsofsandandlime 19 VII Mixing 21 VIII Pressing 23 IX Hardening 24