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

0442139 - ÚGN 2016 RIV US eng J - Journal Article
Ščučka, Jiří - Martinec, Petr - Souček, Kamil
Polyurethane Grouted Gravel Type Geomaterials—A Model Study on Relations Between Material Structure and Physical–Mechanical Properties.
Geotechnical Testing Journal. Roč. 38, č. 2 (2015), s. 229-242. ISSN 0149-6115. E-ISSN 1945-7545
R&D Projects: GA MŠMT ED2.1.00/03.0082; GA MŠMT(CZ) LO1406
Institutional support: RVO:68145535
Keywords : grouting * structural and textural parameters * physical and mechanical properties * composite materials * polyurethane
OECD category: Materials engineering
Impact factor: 0.663, year: 2015
http://www.astm.org/DIGITAL_LIBRARY/JOURNALS/GEOTECH/PAGES/GTJ20140100.htm

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.
Permanent Link: http://hdl.handle.net/11104/0245018