Materials Literature
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Progreso en el empleo del calor de los gases de escape de los hornos rotatorios de vía seca
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La lucha contra las eflorescencias
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Sistemas de transmisión de calor para hornos de vía seca en la fabricación de cemento
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Métodos de molienda, granulometría y resistencia desarrollada por los diferentes cementos
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Conceptos actualizados sobre la molienda del cemento
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La composición de los cementos puzolánicos y su resistencia a las aguas sulfatadas
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La determinación de la resistencia a los sulfatos de los cementos, de acuerdo con los métodos rápidos convencionales
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Influencia del yeso sobre la velocidad de hidratación del cemento portland
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Comportamiento del hormigón entre los 80 y 300 °C
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La incrustación de la alúmina y la magnesia en el silicato trlcálcico
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Un método para determinar la cantidad de cemento en mortero y hormigón
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Principios de la termofísica del horno vertical de cemento
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La carretera de hormigón
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Medidas de la estabilidad de la carcasa de los hornos de rotación "shell"
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Un método rápido para determinar la resistencia a los sulfatos de los cementos
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The crystal structure of Na2Ti3O7
The crystal structure of Na2Ti30 ~ has been determined, using single-crystal methods. The space group is P21/m, with the unit-cell dimensions a=8.571, b=3.804, c=9.135 _~, fl=101.57 .
The Efficiency of Production of Characteristic X-radiation in Thick Targets of a Pure Element
A simple theoretical expression is proposed for K quanta production in directions at large angles to the surface of a thick target, neglecting absorption. Direct and indirect production are calculated and the ratio of indirect to total production is shown to be in agreement with experimental results both in magnitude…
On the Mechanism of Cavitation Damage by Nonhemispherical Cavities Collapsing in Contact With a Solid Boundary
A perfect fluid theory, which neglects the effect of gravity, and which assumes that the pressure inside a cavitation bubble remains constant during the collapse process, is given for the case of a nonhemispherical, but axially symmetric cavity which collapses in contact with a solid boundary. The theory suggests the…
Dielectric and X-Ray Studies ofCaxBa1−xTiO3andCaxSr1−xTiO3
Ceramics of ${\mathrm{Ca}}_{x}{\mathrm{Ba}}_{1\ensuremath{-}x}\mathrm{Ti}{\mathrm{O}}_{3}$ and ${\mathrm{Ca}}_{x}{\mathrm{Sr}}_{1\ensuremath{-}x}\mathrm{Ti}{\mathrm{O}}_{3}$ have been prepared and their dielectric and structural properties investigated. Firing conditions were adjusted to obtain sharp x-ray back reflec…