WHAT IS Bulk DENSITY OF MATERIAL? Explanation of phycial material

Bulk Density (ρb)

mass per unit volume of material in its natural state (with pores and voids)

                                                                                                                            

    ρ_b = M / V

Where M = Mass and V= Volume of specimen in its natural state

•       For most materials, bulk density is less than density

•       But for liquids and materials like glass and dense stone materials, these 

parameters are practically the same.

•       Properties like strength and heat conductivity are greatly affected by their bulk density.

•Bulk densities of some of the building

materials are as follows: 

Material	Bulk density (kg/m3)
Brick	1600–1800
Granite	2500–2700
Sand	1450–1650
Pine wood	500–600
Steel	7850