Effect of Nanosilica Particle Size on the Water Permeability, Abrasion Resistance, Drying Shrinkage, and Repair Work Properties of Cement Mortar Containing Nano-SiO₂

Table 2

Mixtures proportions for the cement mortars.

Sample	Mixture proportions (g)						Flow capacity
	Cement; (g)	Water; (mL)	Sand; (g)	Nanosilica; (g)	Silica fume; (g)	(mL)
OPC	1,000	650	2,750	—	—	—	107
NS 12 nm	910	632	2,750	90	—	36	112
NS 20 nm	910	640	2,750	90	—	20	108
NS 40 nm	910	644	2,750	90	—	12	110
SF 100 nm	910	646	2,750	—	90	8	106

.
Remark. The water in the superplasticizer (SP) was typically assumed to be 50% and taken into account by adjusting water content for each mixture proportion [22, 25, 26].