Table 3.

Slump air content and density of concrete mixtures.

Mix.	Test
	Slump (mm)	Air Content (%)	Density (kg/m3)
Control with 0% NS	192	1.40	2460.2
1% NS	174	0.93	2468.2
2% NS	169	0.83	2469.1
3% NS	169	0.83	2469.1