Two different methods of burning cement clinker, a rapid burning method and an ordinary burning method used in rotary kiln, respectively, were compared in the l
New niobate crystal Ba<sub>2.6</sub>Na<sub>0.4</sub>Cu<sub>0.2</sub>Nb<sub>4.8</sub> O<sub>15</sub> was synthesized in BaO-Na<sub>2</sub>O-CuO-Nb<sub>2</sub>O<s
An alternating current was applied to measure the impedance of a hardened cement paste with various contents of carbon fibres. When the free water content in th
The wear performances of fine grain a lunina ball adding diopside as fluxing agent are reported for the first time in this paper. The ball (average grain size 3