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Author Moffat, R.; Jadue, C.; Beltran, J.F.; Herrera, R.
Title Experimental evaluation of geosynthetics as reinforcement for shotcrete Type
Year 2017 Publication Geotextiles And Geomembranes Abbreviated Journal Geotext. Geomembr.
Volume 45 Issue 3 Pages 161-168
Keywords Geosynthetics; Shotcrete; Geosynthetics reinforcement; Energy absorption; Shotcrete strength
Abstract One of the commonly used stabilization systems for rock tunnels is shotcrete. This fine aggregate mortar is usually reinforced for improving its tensile and shear strength. In deep tunnels, its capacity to absorb energy has been recently considered for design purposes, as large displacements of the wall are expected. Two of the most used materials of reinforcement are steel welded-wire mesh and fibers (steel or polypropylene) in the shotcrete mix. This study presents the results and discussion of an experimental test program conducted to obtain the load-deformation curves of reinforced shotcrete, according to ASTM C 1550, using geosynthetics grids and geotextiles as alternative reinforcement materials. In addition, plain shotcrete and steel welded-wire mesh reinforced shotcrete specimens are also considered in the experimental program as benchmark cases. The experimental results are analyzed in terms of maximum strength and toughness. Results show that the use of geosynthetics as a reinforcement material is a promising alternative to obtain shotcrete with energy absorption capacity comparable with the most common reinforcement materials used. (C) 2017 Elsevier Ltd. All rights reserved.
Address [Moffat, R.] Univ Adolfo Ibanez, Dept Civil Engn, Santiago, Chile, Email: ricardo.moffat@uai.cl;
Corporate Author Thesis
Publisher Elsevier Sci Ltd Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0266-1144 ISBN Medium
Area Expedition Conference
Notes WOS:000401879300004 Approved
Call Number UAI @ eduardo.moreno @ Serial 733
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