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Red mud is a waste generated by the aluminium industry, and its disposal is a major problem for this industry. Very rich in iron, it can be used as cheap pigment for coloured concrete. The red coloration can be enhanced by calcination in the range of 600 to 800 °C. Such operation also transforms...
Hardened cement paste is a porous material. As hydration proceeds, pores become emptied and the relative humidity reduces. This reduction of the relative humidity goes along with a reduction of the pressure in the emptied pore space. Thermodynamic equilibrium requires an increase of the surface...
Dense packing of cement particles in the starting mix results in high-strength mortars of low porosity. Mathematical models of J.E. Funk and D.R. Dinger and their computer implementations are good tools for making efficient use of the filler effect. Mortars made of blended cements show very...
Corrosion of reinforcement in concrete can initiate when chloride ion concentration in contact with steel bars exceeds a threshold value. It is then of crucial importance to describe Cl − penetration through models based on fundamental physico-chemical relationships avoiding the use of...
Molecular dynamics have been used for a few years to study glass structures. Hydrogen properties were however difficult to simulate. For the study of cement hydrated structures, this technique has not been used. Calcium silicate hydrates (CSH) are the main hydrates of cement pastes. X-ray...
Literature review shows that there is a lack of complete and consistent data on waste-binder interactions. Few links exist between research on the Solidification/Stabilization (S/S) mechanisms and the formulation of binders for immobilization. Therefore, a twofold program was developed allowing...
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