Structural Design

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• 1. AAC material is approximately one third to one quarter of the weight of conventional concrete, which reduces cost of the foundation by quantity savings in concrete and steel.
• 2. Slab on grade is to be higher than external finished ground level land so that wall panel does not get in contact with soil.
• 3. PAC Panels (VP) are reinforced for load bearing applications. Table below shows permissible compressive stress on vertical wall panels (VP) based on ACI codes. And table below show the maximum length of VP & HP with various design lateral loads.

Permissible Compressive Stress (Newton/mm2) for the walls.

WALL HEIGHT (mm)	Thickness (mm)
	100	150	200	250	300
2500	-	0.62	0.91	1.10	1.10
2750	-	0.48	0.83	1.02	1.10
3000	-	0.36	0.74	0.96	1.10
3500	-	-	0.55	0.81	0.98
4000	-	-	-	0.66	0.86
4500	-	-	-	-	0.74
5000	-	-	-	-	0.62

Maximum Length of Wall Panels with various lateral loads

THICKNESS (MM)	Maximum Hight of Wall Panels with different design wind load
	0.8 kN/m	1.4 kN/m	2 kN/m	2.6 kN/m
100	3000 mm	3000 mm	2500 mm
150	4500 mm	4000 mm	3500 mm	3000 mm
200	6000 mm	6000 mm	6000 mm	6000 mm
250	6000 mm	6000 mm	6000 mm	6000 mm
300	6000 mm	6000 mm	6000 mm	6000 mm

 Lintels are used as load bearing members over window and door openings for external or interior walls, Table below shows the maximum clear span of lintels in cm with design load mm for.

DESIGN LOAD (kN/m)	Maximum span of lintel with different Load and Thickness with fixed load of 600 mm
	100 mm	150 mm	200 mm	250 mm	300 mm
5	2500	4500	4500	5400	6000
10	2000	3250	4000	4500	5000
15	1000	2750	3250	3750	4100

PAC slabs attain their design strength during the high – pressure steam curing process in the autoclaves. Thus slabs can be erected and ready for use immediately after delivery to the site. Slabs are reinforced with double steel welded mesh and anticorrosion coated.

FS & RS slabs are produced in various thickness and spans depending on the required load bearing capacities. The table below shows the permissible spans in mm with different design loads.

SUPERIMPOSED LOAD					SLABS THICKNESS
(KG/m2)	100 mm	150 mm	200 mm	250 mm	300 mm
250	2850	4450	5850	6000	6000
300	2650	4250	5500	6000	6000
350	2550	4000	5150	6000	6000
400	2450	3800	5000	6000	6000
450	2350	3500	4800	5650	6000
500	2250	3500	4600	5650	6000
550	2000	3350	4450	5450	6000
600	1850	2950	4150	5250	6000
650	1700	2700	3800	4800	5900