Webb15 feb. 2014 · Abstract Al-substituted 11Å-tobermorite was formed by alkaline hydrothermal treatment of blast furnace slag with sodium silicate added at 180°C for 2-48 h. Effects of the hydrothermal treatment time were characterized by XRD, SEM, and isothermal adsorption of N2. Sorption characteristics of the obtained samples were … Webb27 okt. 2016 · Alumina concentrate with 69.5% Al 2 O 3 and mass ratio of alumina to silica (A/S) of 5.9, pure 1.1 nm tobermorite whisker and TiO 2 -rich material containing 33% TiO 2 are produced, respectively, with the optimal parameters. Besides, the actual alumina digestion ratio of alumina concentrate reaches 80.4% at 270 ºC for 40 min in the Bayer …
Introduction to Molecular Dynamics Simulation of a Cement Paste ...
Webb6 dec. 2024 · The XRD pattern of the reference sample revealed the presence of peaks characteristic of unreacted quartz and 11Å-tobermorite. The background elevation in the range of 26–32°2θ was related to the presence of … WebbTobermorite has been redefined by IMA in 2014 as two minerals: tobermorite and kenotobermorite. Forms a continuous solid solution with tobermorite. Two natural … fort bend county online records
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WebbThe real structure of tobermorite 11A: normal and anomalous forms, OD character and polytypic modifications: Note: sample MDO2 - conventional X-ray source, polytype kenotobermorite-2M: Locality: Bascenov, Urals, Russia _database_code_amcsd 0006886: 6.732 7.369 22.680 90 90 123.18 Bm: atom x y z occ Uiso: Ca1 .2632 .4310 .2069 .011 http://qiserver.ugr.es/cod/result.php?CODSESSION=04glt4e6psv77ni5d96lqjqr02kt7259&order_by=file&order=desc WebbApproximately, 50 to 70 percent of hydration products in hydrated cement paste are polymorphisms of C-S-H gel. It is highly influential in the final properties of hardened cement paste. Distinguishing C-S-H nano-structure significantly leads to determine its macro scale ensemble properties. In this paper, a nono-scale modeling is employed. In … dignity challenge