Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/2365
Title: Evaluation of natural zeolite as a viscosity-modifying agent for cement-based grouts
Authors: Şahmaran, Mustafa
Özkan, Necati
Keskin, Süleyman Bahadır
Uzal, Burak
Yaman, İsmail Özgür
Erdem, Tahir Kemal
Keywords: Zeolites
Rheological properties
Superplasticizer
Viscosity modifying admixture
Grout
Issue Date: Jul-2008
Publisher: Elsevier Ltd.
Source: Şahmaran, M., Özkan, N., Keskin, S. B., Uzal, B., Yaman, İ. Ö., and Erdem, T. K. (2008). Evaluation of natural zeolite as a viscosity-modifying agent for cement-based grouts. Cement and Concrete Research, 38(7), 930-937. doi:10.1016/j.cemconres.2008.03.007
Abstract: The effects of natural zeolite on the rheological and workability properties of the grout mixtures were studied. Setting times of grouts were also determined as part of the experimental study. For comparison, grout mixtures were also prepared with a commercially available viscosity modifying admixture (VMA). The experimental results show that addition of natural zeolite modifies both the rheological and workability properties of grouts. For a constant superplasticizer (SP) content, an increase in the zeolite amount significantly increases the yield stress, the apparent and plastic viscosity, and reduces the fluidity and deformability. Moreover, an increase in the amount of SP causes a significant reduction in both the yield stress and plastic viscosity of the grouts. It was also observed that, grouts prepared with natural zeolite addition have a pseudo-plastic behavior, and shear-thinning behavior increases with an increase in the zeolite amount. Therefore, it has been shown that using natural zeolite as a VMA it is possible to obtain grouts that have satisfactory rheological properties, especially if natural zeolite is used in combination with a superplasticizer.
URI: http://doi.org/10.1016/j.cemconres.2008.03.007
http://hdl.handle.net/11147/2365
ISSN: 0008-8846
0008-8846
Appears in Collections:Civil Engineering / İnşaat Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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