Study on the Thermal Properties of Hollow Shale Blocks as Self-Insulating Wall Materials

Table 3

Comparison with other wall materials.

Wall material	Heat transfer coefficient; (W/m^2⋅K)	Thermal resistance; (m^2⋅K/W)	Dimensions
Hollow shale block	0.726	1.232	365 mm × 248 mm × 248 mm with 29 rows of holes
Clay brick	2.240	0.296	240 mm × 115 mm × 53 mm
Concrete block	2.220	0.300	390 mm × 190 mm × 190 mm with three rows of holes
Recycled concrete blocks	1.620	0.457	390 mm × 240 mm × 190 mm with three rows of holes