Table 4 Impact of mineral additives such as fly ash on the properties of Portland cement PPC I—500 (paste 1:0)
From: Research of Nano-modified Plain Cement Concrete Mixtures and Cement-Based Concrete
Cement paste sample | Ultimate tensile strength, MPa, time, days | |||
|---|---|---|---|---|
1 | 2 | 7 | 28 | |
No additive | 29.6 | 47.9 | 50.8 | 52.6 |
Fly ash | 32.7 | 47.0 | 53.4 | 55.0 |