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https://hdl.handle.net/20.500.13091/1054
Title: | Investigating the properties of jet grouting columns with fine-grained cement and silica fume | Authors: | Olgun, Murat Kanat, Askar Şenkaya, Alican Erkan, İbrahim Hakkı |
Keywords: | Jet Grouting Fine-Grained Cement Silica Fume Unconfined Compressive Strength Permeability Test In Triaxial Test Apparatus Portland-Cement Compressive Strength Engineering Properties Permeability Sands Nano-Sio2 Microstructure Metakaolin Mortar Pastes |
Publisher: | ELSEVIER SCI LTD | Abstract: | In Jet Grouting (JG) applications, manufacturing of jet grouted columns which answer the purpose, is possible by designing proper injection fluid which is a cement grout in most cases. In this study, the impacts of three different binder types on the performance of JG columns was investigated. Fine-grained cement (DMFC-800), Ordinary Portland Cement (OPC) and the mixture of OPC cement including 10% silica fume (SF) by weight were used as binders. Grouting mixtures were prepared at various water/cement (W/C) ratios, then JG columns were manufactured. Whilst the maximum unconfined compressive strength (UCS) value was obtained from fine grained cement induced samples (max. UCS = 24.6 MPa for W/C = 1.0), very high strength values were detected for OPC + 10%SF induced samples as well. The maximum splitting tensile strength (STS) values for OPC + 10% SF induced samples were found to be (min. STS = 3.62 MPa for W/C = 1.25). Furthermore, after the permeability tests, it was observed that the columns with DMFC-800 and OPC + 10% SF induced mixtures exhibit the lowest permeability coefficients as compared to columns made from the other binders (min. k = 0.1124 x 10(-8) m/s for DMFC-800). Scanning electron microscope (SEM) image analysis revealed that DMFC-800 cement and OPC + 10% SF induced mixture reduced the voids between particles and enhanced the binding ability of the grouting mixture. (C) 2020 Elsevier Ltd. All rights reserved. | URI: | https://doi.org/10.1016/j.conbuildmat.2020.120637 https://hdl.handle.net/20.500.13091/1054 |
ISSN: | 0950-0618 1879-0526 |
Appears in Collections: | Mühendislik ve Doğa Bilimleri Fakültesi Koleksiyonu Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collections WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collections |
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1-s2.0-S0950061820326428-main.pdf Until 2030-01-01 | 1.57 MB | Adobe PDF | View/Open Request a copy |
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