Bending Performance of Precast Lightweight Aggregate Concrete Exterior Wallboard with a Concealed Rib Sandwich Structure

Table 3

Test board basic parameters.

Number	Thickness of each layer of wallboard	Concealed rib arrangement	Reinforcement ratio of inner and outer panels (horizontal/vertical)
	Outer panel: insulation layer: inner panel/mm
Slab 1	40 : 50 : 40	0	0.559%/0.534%
Slab 2	50 : 30 : 50	0	0.559%/0.534%
Slab 3	50 : 30 : 50	Vertical	0.559%/0.577%
Slab 4	50 : 30 : 50	Horizontal/vertical	0.559%/0.577%