(22) 14.04.2014
(45) 20.05.2015
(57) Method of obtaining of gypsum cement-puzzolan mix includes hydroactivation of portland cement with surfactants for 1 min. with the subsequent adding of gypsum and...
(22) 26.11.2014
(43) 27.05.2015
(57) A particulate waste material, for example a particulate contaminated material 1, is processed into a constructional material, such as an aggregate for use in the...
(22) 23.12.2013
(43) 24.06.2015
(57) Devices and methods for calibrating acoustic cement evaluation data using an acoustic calibration device installed behind a casing in a wellbore are provided. Such...
(22) 03.04.2014
(43) 27.05.2015
(57) The invention concerns a composition containing a) 2 to 80 weight % of Ordinary Portland Cement with respect to the total weight of the composition b) 2 to 80...
(22) 18.11.2013
(43) 20.05.2015
(57) The present invention describes the use of a polycarboxylate ether as an air-entraining agent in a composition comprising a hydraulic binder, wherein the...
(22) 29.10.2013
(43) 06.05.2015
(57) White cement clinker can be efficiently produced using a kiln 10 for sintering cement clinker and unloading the cement clinker from the kiln 10 to a clinker...
(22) 30.04.2009
(43) 02.03.2011
(45) 24.06.2015
(57) The present invention relates to a method and facility for recovering, in high-concentration, CO2 gas mainly generated at the time of calcination...
Original: Verfahren und Vorrichtung zum Kühlen und Zerkleinern von heißem Zementklinker.
(22) 17.04.2014
(45) 03.06.2015
(57) Die Erfindung betrifft ein Verfahren zum Kühlen und Zerkleinern von...
(22) 10.08.2012
(43) 07.03.2013
(57) The invention provides a carbon dioxide-resistant hydraulic cement composition, the inventive composition comprises a Portland cement, Class C fly ash and water....
