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New synthetic route to the hydridospherosiloxanes Oh-H8Si8O12 and D5h-H10Si10O15

Pradyot A. Agaskar1991-06-01Inorganic Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNew synthetic route to the hydridospherosiloxanes Oh-H8Si8O12 and D5h-H10Si10O15Pradyot A. AgaskarCite this: Inorg. Chem. 1991, 30, 13, 2707–2708Publication Date (Print):June 1, 1991Publication History Published online1 May 2002Published inissue 1 June 1991https://pubs.acs.o…

Silicone and Siloxane ChemistryOrganometallic Compounds Synthesis and CharacterizationInorganic Fluorides and Related Compounds

Mechanism of gypsum hydration

G. Pacheco、M. Portilla1991-06-01Materiales de Construccion

There is an hypothesis that the mechanism o f gypsum hydration and dehydration is performed through two simultaneous phenomena. In this study we try to clear up this phenomenon using chlorides as accelerators or a mixture of ethanol-methanol as retarders to carry out the gypsum setting. Natural Mexican gypsum samples…

Noticias

Equipo Editorial1991-06-01Materiales de Construccion

Petrografía, propiedades físicas y durabilidad de rocas utilizadas en el patrimonio monumental de Cataluña, España (2.ª parte)

Rosa M. Esbert、Rosa M. Marcos、Jorge Ordaz 等 9 位作者1991-06-01Materiales de Construccion

The petrographical description and the values of some physical properties of three rocks used in the Architectonic Heritage of Catalonia (Spain) are presented. These rocks are known, in the field of the "building stones" as Sant Vicenç, El Figueró and Manresa stones. By means of accelerated ageing tests, their durabil…

Macroscópical morphology of deterioration of the stone in the Cathedral of Almería/Spain

M. Alcalde、A. Martin1991-06-01Materiales de Construccion

The prevailing winds in the area, associated with an important rising damp are the main natural factors of deterioration that affect the Cathedral of Almería. Certain unfortunate maintenance Jobs carried out as well as the bombardments and machine-gunning on the building during the Civil War can be indicated as anthro…