The effect of using natural zeolite on the properties and hydration characteristics of blended cements

Effect of metakaolin substitution on physical, mechanical and hydration process of White Portland cement

“…It will be possible to better explain the material behavior of cement-containing composites by means of the use of spectroscopic methods which are used for the determination of material characterizations in several disciplines [23,24]. Koçak states that determining the surface characteristics of materials and the interaction between particles would contribute to the comprehension of reactions, particularly for understanding the change caused by puzzolan addition on the hydration process of cements.…”

Hydration and mechanical properties of cement/sludge/anhydrite gypsum system

“…There is also a small peak for calcium hydroxide detected at 3 d, which is due to its low percentage that is in a good agreement with DSC results. Figure 7 illustrates the FTIR spectra of samples S1, S2, S4 (0%, 5%, 15% anhydrite substituted sludge) at different hydration times 3, 7, 28 and 90 d. The spectra of FTIR show a broad band at 3448 cm -1 , which is attributed to a stretching vibration of water bound in the hydration products (Kocak et al, 2013). ı3 and ı2 stretching bands generated by the C-O groups in the calcite appeared at around 1434 cm -1 and 875 cm -1 (Rodríguez et al, 2010).…”

Studying effects of chemical admixtures on the workability retention of zeolitic Portland cement mortar

“…Pozzolanic activity and effects of zeolite powder on the hardened properties of concrete have been widely investigated by researchers [1][2][3][4][5][6][7][8]. Earlier studies have shown that Portland cement replacement by NZ (5-55%, by mass) contributes to consumption of calcium hydroxide which is formed during hydration of Portland cement [9][10][11]. As a result of this, hardened properties of concrete made with NZ are improved.…”