Determining the Amount of Reacted Slag in Blended Cement Using EDTA Method

1 Procedure of EDTA

A typical chemical reaction of a slag could be like the following [NIST, D.P Bentz],

C7.88S7.39M3A + 2.6CH + bH → 7.39C1.42SHmA0.046 + 0.66M4.6AHd

C=CaO, S=SiO2, M=MgO, A=Al2 O3, CH=Ca(OH)2, H=H2O.

The method EDTA (Ethylenediaminetetraacetic acid) has been described by Erntro......

Hydration Mechanisms of Portland Cement: Topochemical or Through-Solution Reaction?

When we simulate the hydration process of Portland cement, it is of significant importance to know the hydration mechanisms. Basically, there are two mechanisms for the hydration of Portland cement, viz. Topochemical and Through-Solution Reaction.

1 Topochemical Reaction Concept

Immediately after......

3D printer to print a house, is it the future of cementitious materials?

Construction industry, the only industry still does things manually.

Even in the 21st century, to build a house right now is still a slow, labour-intensive, dangerous process, and almost always over-budget. Unlike the motoring or technology industries which use automated production methods to compl......