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G. Rodríguez

Last name
Rodríguez
First name
G.
Country
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  • Morteros y hormigones de resinas

    In this article, the growing use is explained of resins and plastics (PVC and others) in building, replacing the standard binder which is cement, or filling passages of pieces of set and hard concrete, to improve 3 to 5 fold their compressive and tensile strengths. Likewise, some rules are given on dryness of the aggregates to be used, speed in form removal, greater adherence, easier to handle, price problems, not very fire-proof, etc. Use in facing frontages, industrial flooring, treating cr...

    Resin mortars and concrete

    In this article, the growing use is explained of resins and plastics (PVC and others) in building, replacing the standard binder which is cement, or filling passages of pieces of set and hard concrete, to improve 3 to 5 fold their compressive and tensile strengths. Likewise, some rules are given on dryness of the aggregates to be used, speed in form removal, greater adherence, easier to handle, price problems, not very fire-proof, etc. Use in facing frontages, industrial flooring, treating cr...

    Ideas para la mejora de las instalaciones deportivas

    In view of the ever increasing dedication of todays youth to sports it is necessary to find suitable, efficient and economic solutions in architecture and engineering to be able to provide for the needs of this important human manifestation. The article displays various theories that give evidence of the preoccupation of the present technique to try to find the best way of solving the problem in the developing countries. All the presented proposals tend to combine the most reasona...

    New species of Pseudothelphusa from the Venezuelan Andes (Crustacea Brachyura, Potamonidae)

    During a collecting trip in the Venezuelan Andes three species of fresh water crabs were obtained. One of these is here described as a new species, a second as a new subspecies of an already described species. In these descriptions the abbreviations cb. and cl. have been used for "carapace breadth" and "carapace length", respectively. The material is deposited in the Museum of Biology of the Central University of Venezuela, Caracas (MB). I am greatly indebted to Mr. Andrés Eloy Esteves for hi...

    New insulation and construction safety materials

    After highlighting the importance of Construction and Public Works and the important role the chemical industry plays in improving the characteristics of traditional products, this article analyzes the qualities of new insulation and safety materials. Amongst these materials, the following deserve special mention: — Polyvinyl chloride, used in carpentry, water pipes, etc., because of its water-proof properties, good heat and acoustic insulation and practically non-existent maintenance e...

    Nuevos casos colombianos de lobomicosis

    Estudios realizados en el Laboratorio de Patología del Instituto Nacional de Salud (INS), a través del Programa de Referencia de Dermatopatología, han demostrado que la lobomicosis no es rara en Colombia. Hay varios focos de la enfermedad entre indígenas de la Orinoquía y de la Amazonía, en pacientes de raza negra del litoral pacífico y en algunas zonas del Magdalena medio. El número total de casos demostrados fue de 41.

    Nuevos materiales aislantes y de seguridad en la construcción

    After highlighting the importance of Construction and Public Works and the important role the chemical industry plays in improving the characteristics of traditional products, this article analyzes the qualities of new insulation and safety materials. Amongst these materials, the following deserve special mention: — Polyvinyl chloride, used in carpentry, water pipes, etc., because of its water-proof properties, good heat and acoustic insulation and practically non-existent maintenan...

    The freshwater crabs of the genus Pseudothelphusa from northern Venezuela and Trinidad (Brachyura, Potamonidae)

    During a study of collections of Venezuelan Pseudothelphusa deposited at the Museum of Biology of the Central University of Venezuela, Caracas, and at the La Salle Museum of Natural History, Caracas, examples of two new forms were discovered; one of these is here described as a new species, the other as a new subspecies of an already described species. In the previous descriptions from Venezuela and Trinidad by Rathbun (1898, 1905, 1919), the male pleopod, which furnishes the most reliable ch...

    Ideas para la mejora de las instalaciones deportivas

    Dada la dedicación, cada vez más intensa, a los deportes de la generación actual, se hace preciso buscar soluciones arquitectónicas e ingenieriles que resulten idóneas, eficaces y económicas para albergar la práctica de esta importante manifestación humana. En este artículo se exponen teorías diversas que dan fe de la preocupación de la técnica actual, tendente a encontrar la mejor manera de contribuir a solventar el problema en los países desarrollados. Todas las propuestas presentad...
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