Cement-chemical

Wilson, A. D. (1978). The chemistry of dental cements. Chemical Society Review, 1, 265-96. 

Wilson, A. D., Kent, B. E. Lewis, B. G. (1970). Zinc phosphate cements chemical study of in vitro durability. Journal of Dental Research, 49,... 

Although many Ca-rich fly ashes are self-cementing, strength gain is usually too slow for most practical applications. Moreover, aluminosilicate rich ashes are essentially unreactive with water. The most important application of fly ash is as a partial replacement for Portland cement. In this application, Portland cement furnishes much of the early strength, up to 1 month, while the high alkalinity of cement chemically activates the ash such that its slow reaction with cement components and water contribute increasingly to... 

Correlations have also been found between the percentages of individual impurity oxides in the alite and in the clinker. In the following discussion, we shall use symbols of the type and to denote these quantities, where O is the cement chemical symbol for the oxide and the suffixes a and c indicate alite and clinker, respectively. For MgO, Kristmann s (Kl) data indicate the approximate relations = 0.67 x for < 3.0 and 2.0 for > 3.0. Yamaguchi and Takagi (Yl) and Terrier (T2) found similar correlations, but with slopes of 0.74 and 0.45, respectively. For AI2O3, Kristmann (Kl) did not find any significant correlation, but for FejO, his data indicate the approximate relation = 0.33 x for F <4%. Boikova (B4) reported ratios of 0.34 to 0.82 for MJM., 0.09 to 0.23 for AJA and 0.17 to 0.36 for F3/F,. 

It has been well known that weak interfaces between the inorganic fillers and the organic matrix reduce the mechanical strength of bone cement [38,40,44,45]. The interfacial adhesion strength can be enhanced by plasma treatment, which is generally due to the improved wettability and possibly to the chemical bonds between the filler and the resin [46,47]. Especially in acrylic bone cement, chemical bonds may have an important role in improving the mechanical strength by the plasma treatment. 

Further industrial products that can be analyzed include glasses, ceramics, superconductors, cement, chemicals, pharmaceuticals, catalysts, semiconductors, paints and oils. 

Cal ratio Chemical formula Cement chemical notation Chemical name (IUPAC notation) Common acronyms... 

The cement chemical notation refers to C = CaO, P = P2Os, H = H20 (see Figure 6.4). In addition to compounds occurring in the water-free binary Ca0-P205 phase diagram shown in Figure 6.4, the table lists also hydrated compounds. 

Figure 22. Cement chemical shrinkage. (Reproduced with permission from reference 5. Copyright 1991 Schlumberger.)...

To alter the rate of hydration and the properties of the concrete mix made with calcium aluminate cement, chemical admixtures may be employed. However, many of the substances effective as chemical admixmres with Portland cement may be ineffective with calcium aluminate cement, or may affect the hydration of this cement differently. 

Uses widely known as Plexiglass (in the polymer form), used to make polymers, which in turn are used for building, automotive, aerospace and furniture industries as dentd plates, hearing aids, printing plates, artificial nail and teeth and orthopedic cement chemical intermediate in organic synthesis A... 

Figure 4.13 Ternary phase diagram MgO-AljOj-SiOj. Stability fields of primary phases are labeled in italics, binary and ternary phases are shown in cement chemical notation. The dotted lines indicate...

Kucharska, L., Moczko, M. (1993) Influence of cement chemical composition on its response to superplasticizer addition in the light of the rheological research, in Proc. Interuniv. Sem. Tech, The Netherlands University of Eindhoven pp. 135 3. 

Name Chemical composition Cement chemical name Typical content... 

A unique key to substance data for cement-chemical compounds and to the work with cement-chemical calculations is available in the work o Babushkin, Matveyev Mchedlov-Petros an Thermodynamics of Silicates, Springer-Verlag, Berlin. 

For the cement-chemical description, the following names or abbreviations are used for the oxides that form the clinker minerals... 

In the frequently used cement-chemical designations, the following abbreviations oxides in the clinker minerals are used... 

---