Evaluation of natural zeolite as a viscosity-modifying agent for cement-based grouts

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Date

2008-07-01

Author

Sahmaran, M.
Özkan, Necati
Keskin, Serhat
UZAL, BURAK
Yaman, İsmail Özgür
Erdem, T. K.

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The effects of natural zeolite on the theological 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 theological properties, especially if natural zeolite is used in combination with a superplasticizer.

Subject Keywords

Grout, Viscosity modifying admixture, Superplasticizer, Natural zeolite, Viscosity modifying admixture

URI

https://hdl.handle.net/11511/32474

Journal

CEMENT AND CONCRETE RESEARCH

DOI

https://doi.org/10.1016/j.cemconres.2008.03.007

Collections

Graduate School of Natural and Applied Sciences, Article

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Citation Formats

M. Sahmaran, N. Özkan, S. Keskin, B. UZAL, İ. Ö. Yaman, and T. K. Erdem, “Evaluation of natural zeolite as a viscosity-modifying agent for cement-based grouts,” CEMENT AND CONCRETE RESEARCH, pp. 930–937, 2008, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/32474.