Density, of slags

Where R = the inner diameter zero, p = density of slag, T) = viscosity of slag and g = gravitational constant, at equilibrium this reduces to ... 

A furnace slag cement slurry can have a density of 1500 to 1600 kg/m. A combination of silica flour and furnace slag may be used to achieve service temperatures exceeding 200° C [670]. A gas may be suitable as a foaming agent [358]. 

Comparison of the average proportions, compositions and densities of the phases present in the material formed in situ from the slag with correspond-... 

Calculations based on reaction stoichiometry and densities of phases support the conclusions from experimental observations that mature pastes of composite cements are more porous than comparable pastes of Portland cements. This is indicated by the results in Table 7.3, 9.4 and 9.6. Similar calculations for 180-day-old pastes of w/s 0.45 indicate free water porosities of about 24% for a typical Portland cement, 35% for a cement with 40% slag, 35% for one with 40% pfa and 32% for one with 30% microsilica. The calculated values are in all cases somewhat higher than observed mercury porosities (F34,F41). 

Refining by slag treatment is dependent on several parameters, such as reaction kinetics, diffusion of impurities, partition ratios, etc. Meanwhile, these parameters are dependent on the type of slag and its thermophysical and thermochemical properties. For example, viscosity, density, and interfacial properties affect the separation of slag from the metal and the duration of slag refining. 

KEYWORDS SiOj—NajO binary slag, glassy state, 0 K X-ray emission spectmm, paitid density of states as a fimction of NajO content, basicity... 

Previously we have proposed a method to incorporate the NajO content into the calculation of the Sijp partial density of states (PDOS) of the SiO,—Na20 binary slag (4-6). The Si PDOS agreed well with the expaimental Si X-ray emission spectra of the binary slag (5,6). Furthennore, with this method we were able to explain the reason for the change in the shape of the Si Kg X-ray emission spectrum of the slag as its metal oxide content changes. 

There are few experimental data for the density of phosphate slags but xV(P205) values were derived from data for the systems CaO + FeO + P2O5 and Na20 + P205 A constant value of V = 65.7 cm3 mol was obtained from the selected linear relationship. 

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