Experimental Study of New Insulation Lightweight Concrete Block Floor Based on Perlite Aggregate, Natural Sand, and Sand Obtained from Marble Waste

Table 1

Properties of expanded perlite aggregate.

Color	White
pH	7
Melting point	1200°C
Specific heat	0.20 kcal/kg C
Rough density	70 kg/m^3
Thermal conductivity	0.040 W/mK
Compression strength in the compacted condition	0.10–0.40 MPa
Water absorption	30–40 (%, V/V)
Porosity	70–85%
Size (mm)	2–4
Sound insulating (125 Hz)	18 dB