Contribución al estudio de la resistencia química de los cementos. Comportamiento mecánico de un cemento portland resistente al yeso (1.ª Parte)
This study, first part of a work where an account of the evolution of the mechanical resistances of various series of mortar and concrete tests submitted to the action of different agressive solutions will be given, sets up the chemical resistant behaviour of a sulphate resistant portland cement (with a content calculated —Bogue— null of C3A, of 10,8% of C4AF and of 81,7% of C3S + C2S) against the CaSO4.2 H2O through the Le Chatelier-Anstett methods, and described in the ASTM C 452-73 and against the following agressive solutions: saturated solution calcium sulphate, Na2SO4 (2,1 g/l), MgSO4.7H2O (3,22 g/l), MgSO4.7 H2O (32,2 g/l), saturated of calcium sulphate + MgSO4.7H2O (3,22 g/l), saturated of calcium sulphate + MgSO4.7H2O (32,2g/l), Na2SO4 (3,5 g/l) + NaCl (20,0 g/l), artificial sea water and, also, filtered drinking water, through of the Wittekindt and Kock Steinegger methods, during diverse periods, which allowed to establish a classification, according to his behaviour, of the studied cement against those agressive solutions.
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