SPECIFIC GRAVITY AND WATER ABSORPTION TEST.
SPECIFIC GRAVITY AND WATER ABSORPTION TEST. ( IS : 2386 – PART – 3 ) INTRODUCTION: The specific gravity of an aggregate is considered to be a measure of strength or quality of the material. The specific gravity test helps in the identification of stone. Water absorption gives an idea of strength of aggregate. Aggregates having more water absorption are more porous in nature and are generally considered unsuitable unless they are found to be acceptable based on strength, impact and hardness tests. Object : To determine the specific gravity and water absorption of aggregates by perforated basket. Apparatus : a) A wire basket of not more than 6.3mm mesh or a perforated container of convenient size with thin wire hangers for suspending it from the balance. b) A thermostatically controlled oven to maintain temperature of 100 0 to 110 0 C. c) A container for filling water and suspending the basket. d) An airtight container of capacity similar to that of the ba...