期刊
CONSTRUCTION AND BUILDING MATERIALS
卷 141, 期 -, 页码 542-552出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2017.03.017
关键词
Geopolymers; Grout; Matrix; Composite materials; Fibre reinforced materials; Strengthening; Masonry structures; Experimental testing; Fibre reinforced geopolymers
The paper presents the assessment of a metakaolin-slag-sodium-silicate GeoPolymer (GP) grout as a matrix for bonding four bidirectional meshes made of basalt, glass, carbon fibres and two unidirectional ultra-high tensile strength steel fabrics to soft mud and strong extruded clay bricks for strengthening purposes. A detailed chemical/physical characterization of the geopolymer is given, evidencing the completion of the geopolymerization reaction and the good stability of the geopolymer to leaching, freeze thaw cycles and high temperature treatments as well as its adequate mechanical properties. Pull-off tests proved the excellent adhesion strength of the geopolymer grout, also embedding meshes and fabric, to both types of clay bricks. (C) 2017 Elsevier Ltd. All rights reserved.
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