Determining the Surfactant Consistent with Concrete in order to Achieve the Maximum Possible Dispersion of Multiwalled Carbon Nanotubes in Keeping the Plain Concrete Properties

Table 4

The turbidity of water containing MWCNTs using different surfactants.

Surfactant	Absorbance; (out of 5)	Turbidity (NTU)
SDS/DTAB (9 : 1)	0.76	1320
SDS	0.71	1086
NaDDBS	0.68	579
TX-100/NaDDBS (3 : 1)	0.28	27.6
TX-100/NaDDBS (2.25 : 1)	0.48	245
Superplasticizer (0.4 wt%)	0.29	89.7
Superplasticizer (0.5 wt%)	0.65	376
Superplasticizer (0.7 wt%)	0.45	187
Superplasticizer/SDS (9 : 1)	1.23	1835