Viability Study of a Safe Method for Health to Prepare Cement Pastes with Simultaneous Nanometric Functional Additions

Table 2

Water losses associated with different phases in cement pastes with 2 wt.% of nanozinc (NZ) + 10 wt.% microsilica (MS).

	2% NZ + 10% MS manual mixing (wt.%)			2% NZ + 10% MS low shear rate dispersion (wt.%)			52.5R
	3 d	7 d	28 d	3 d	7 d	28 d	3 d	7 d	28 d
T1	1.8	6.1	8.8	1.3	2.0	9.0	6.6	7.0	7.8
T2	0.4	1.8	2.5	0.4	0.5	2.5	3.4	3.5	3.5
T3	2.1	3.0	3.0	2.0	2.2	2.6	2.6	2.8	2.6
Total combined water (T1 + T2 + T3) wt.%	4.3	10.9	14.3	3.7	4.7	14.1	12.6	13.3	13.9
Equivalent calcium (T2 + T3) wt.%	2.5	4.8	5.5	2.4	2.7	5.1	6.0	6.3	6.1
CSH gel (T1) wt.%/total portlandite (T2 + T3) wt.%	0.72	1.27	1.60	0.54	0.74	1.76	1.10	1.11	1.28