[Retracted] Thermal Conductivity of Thermally Insulated Concretes in a Nuclear Safety Vessel of Reactor Vault: Experimental Interpretation

Table 4

Properties of normal and lightweight coarse aggregates.

Properties	Normal	Pumice	Volcanic rock	Coconut shell
Raw material	Ballast	Volcanic	Volcanic	Coconut
Maximum size (mm)	20	20	15	12.5
Particle density (kg/m^3)	2500	300	710	650
Dry loose bulk density (kg/m^3)	1200	750	675	550
Shape type	Crushed	Crushed	Crushed	Flaky
Water absorption (%)	1	55	62	13.79