Inter Relationship among Physical and Mechanical Properties of Quartzite Coarse Aggregates

Aggregate is relatively inexpensive and does not have complex chemical reactions with water in concrete. It is inert filler in mortar and concrete. Aggregate is a granular material, such as sand, gravel or crushed stone used with cement to produce mortar or concrete. Due to increasing awareness of role being played by aggregates in determining properties of mortar and concrete, the view of aggregate as filler materials is required to be reviewed. The normal concrete strength is usually not dependent on the aggregate strength except light weight aggregates. Aggregate characteristics other than strength, such as shape, size, surface texture, particle size etc. and its mineralogy will affect the strength of concrete. The physical properties of aggregates are inter-related and have definite relationship. The relationship among the physical properties of coarse aggregate with mathematical model for quartzite aggregates has been derived and presented in this paper.