Abstract The scarcity of high-purity limestone subjects the cement industry to consider alternative supplementary cementitious materials for production. This research aimed investigate mechanical properties and hydration kinetics pastes in presence high levels different fineness dolomite, especially formation thaumasite. A dolomite filler with 20% magnesium oxide, average diameters 10 µm, 6 µm ...

The resistivity of fresh concrete was obtained for the period from casting to age 72 h by a non-contact electrical measurement. Early hydration process three types with ratio water binder in mass 0.4, including ordinary Portland cement (OPC), fly ash 30% (FAC) and silica fume 5% (SFC), were analysed compared. Based on data Krstulovic-Dabic model, parameters kinetics model obtained, characterize...

Abstract Understanding the durability of nuclear glass in vapor phase is essential for evaluating long-term safety glass. This work studies hydration borosilicate and iodine-bearing at 90 °C relative humidity 99%. Hydration kinetics was monitored by analyzing boron iodine released during process. It found that becomes more easily after being added to matrix. The results related release retentio...

In hybrid alkaline fly ash cements, a new generation of binders, hydration, is characterized by features found in both ordinary portland cement (OPC) hydration and the alkali activation of fly ash (AAFA). Hybrid alkaline fly ash cements typically have a high fly ash (70 wt % to 80 wt %) and low clinker (20 wt % to 30 wt %) content. The clinker component favors curing at ambient temperature. A h...