The potential use of steel slag from treated in belite-sulfoaluminate cements was investigated this study. Cement clinkers with two phase compositions were synthesized, allowing the incorporation different amounts slag. composition and microstructure cement at three sintering temperatures studied by X-ray powder diffraction Rietveld method, as well scanning electron microscopy energy dispersive...

In this paper we report a computational study of the structural and vibrational properties of the Mg-end members forsterite, wadsleyite and ringwoodite of Mg2SiO4, and akimotoite, majorite and the perovskite phase of MgSiO3. Our calculations have been carried out in the framework of Density Functional Theory (DFT) using a plane wave basis set and the Projector-augmented Wave (PAW) method to acc...

[1] We have investigated the dissociation of iron free ringwoodite, Mg2SiO4 g-spinel, into MgO periclase and MgSiO3 perovskite using quasi-harmonic free energy computations within the local density approximation (LDA) and generalized gradient approximation (GGA). The transition pressure, Ptr , obtained from GGA is higher and in much better agreement with experimental measurements than its LDA c...