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    Volume 38, Issue 2 (March 2015)

    Polyurethane Grouted Gravel Type Geomaterials—A Model Study on Relations Between Material Structure and Physical–Mechanical Properties

    (Received 13 May 2014; accepted 4 December 2014)

    Published Online: 2015

    CODEN: GTJODJ

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    Abstract

    New specific composite materials are formed in the field of grouting technologies by pressure grouting of polyurethane resins into soils, disturbed rocks, or into damaged building structures. The structural and textural variability of these geomaterial–polymer composites complicates significantly the determination of their physical and mechanical properties. Determination of mechanical parameters is particularly difficult because it is often impossible to prepare standard test specimens for laboratory loading tests from the samples taken after grouting in situ. Analysis of structures and textures of composites originating from geotechnical practice represents a possible indirect way to evaluate their physical and mechanical properties. The structure of a composite material can be compared with structures of similar composites whose physical and mechanical properties are already known. In this paper, results of a model study are presented. The aim of this study is to define basic relations between structural parameters and physical–mechanical properties of the model composites with a polyurethane matrix and to evaluate whether and to what extent the knowledge of these relations can be used for the prediction of properties of composites in practice.


    Author Information:

    Scucka, Jiri
    Institute of Clean Technologies for Mining and Utilization of Raw Materials for Energy Use, Institute of Geonics AS CR, Studentska, Ostrava

    Martinec, Petr
    Institute of Clean Technologies for Mining and Utilization of Raw Materials for Energy Use, Institute of Geonics AS CR, Studentska, Ostrava

    Soucek, Kamil
    Institute of Clean Technologies for Mining and Utilization of Raw Materials for Energy Use, Institute of Geonics AS CR, Studentska, Ostrava


    Stock #: GTJ20140100

    ISSN:0149-6115

    DOI: 10.1520/GTJ20140100

    Author
    Title Polyurethane Grouted Gravel Type Geomaterials—A Model Study on Relations Between Material Structure and Physical–Mechanical Properties
    Symposium ,
    Committee D18