Challenges and Benefits of Utilizing Carbon Nanofilaments in Cementitious Materials

Table 1

Mix proportion of the cement paste batches. ^*In batch 5 CNFs were directly added, in form of dry powder, to cement paste in the mixer, while in the other batches CNFs were first dispersed in a water-superplasticizer solution using ultrasonic processing.

Batch no.	CNF (cm)	W (cm)	Silica fume (c)	Superplasticizer (cm)	Cast in 100% RH
1	0.00	0.40	0.00	0.00	No
2	1.00	0.40	0.00	0.74	No
3	0.00	0.40	0.00	0.00	Yes
4	1.00	0.40	0.00	0.74	Yes
5^*	1.00	0.40	0.00	0.74	Yes
6	0.00	0.25	0.00	0.66	No
7	1.00	0.25	0.00	0.85	No
8	0.00	0.40	0.20	0.67	Yes
9	1.00	0.40	0.20	1.42	Yes