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Creep of MDF panels under constant load and cyclic environmental conditions. Influence of surface coating

J. I. Fernández-Golfín Seco、M. Rafael Díez Barra1997-06-01Materiales de Construccion

Four different strategies of surface coating (based on 80 g m2 melamin impregnated papers) were used on 19 mm thick commercial MDF panels to assess its reological behaviour under cyclic humidity conditions (20ºC 30 % rh-20ºC 90 % rh). Three different levels of stress (20 %, 30 % and 40 %), based on the ultimate load i…

Morteros de albañilería con escombros de demolición

J. L. Álvarez Cabrera、F. Urrutia、D. Lecusay 等 4 位作者1997-06-01Materiales de Construccion

The possibility of recycling construction rubble, its technical and economic effectiveness, and the social and ecological impact they provide for our society is the reason and the starting point for an optimal exploitation of this aggregate in the manufacture of masonry mortar, since it has the same inherent propertie…

Rendering mortars in Medina Azahara, Part II: Material characterization and alteration causes

M. T. Blanco-Varela1997-06-01Materiales de Construccion

In the present work, the depicted coat that covers some of the mortars exposed to weathering in the Medina Azahara archaeological site is .studied. That coat is characterized from the compositional and physical viewpoint and the main causes for its decay are determined. The depicted coat is formed by cal cite and iron…

Influence of the activator concentration on the kinetics of the alkaline activation process of a blastfurnace slag

A. Fernández-Jiménez、F. Puertas1997-06-01Materiales de Construccion

The influence of activator solution concentration on hydration kinetics of an alkaline activated blast furnace slag has been studied. The alkaline activator used was a mix of waterglass (Na2SiO3∙nH2O) and NaOH solution (of variable concentration). Final activator concentrations were 3,4 and 5 % Na2O wt. with respect t…

Editorial

Equipo Editorial1997-06-01Materiales de Construccion

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作者信息未提供1997-06-01Science and Engineering of Composite Materials