Category Archives: Blended cement

Influence of Particle Size on the Early Hydration of Slag Particle Activated by Ca(OH)2 Solution

Authors: Zhijun Tan, Geert De Schutter, Guang Ye, Yun Gao, Lieven Machiels Abstract: This paper investigates the influence of slag particle size on its hydration speed at particle level in the early age. Slags were separated with sieves into groups of different size fractions, considering a wide range of sizes. The chemical compositions of each […]

The Influence of Slag on the Hydration of Cement

These following conclusions are summarized from the work of Kocaba’s PhD thesis. alite: no influence is shown on the consumption of alite measured by XRD. belite: the substitution of cement by both slags seems to result in a delay in the hydration of belite in the first days. aluminate phase: there is a filler effect […]

How much is the bulk density of hydrating (blended) cement paste?

In the last post, I explained the clear definition of different densities. Among these densities, bulk density and apparent density are the two most important values when performing mercury intrusion porosity (MIP) experiment. Since samples that undergo MIP are usually irregular, the bulk volume is not possible to measure without being immersed in liquid. By […]