Investigation of the Rheological Properties of Microfine Grained Cement and Normal Portland Cement with Silica Fume

Year 2018, Volume: 2 Issue: 2, 33 - 43, 01.12.2018

Murat Olgun Askar Kanat

Abstract

In
this experimental study the rheological properties of microfine grained portland
cement and normal portland cement grouts with or without silica fume additives were
to investigated. To estimate the injectability of the cement slurry, we need to
know the rheological properties of the slurry. In the study, microfine portland
cement (DMFC-800), normal portland cement and normal portland cement with 10%
silica fume were used. Marsh funnel, sedimentation and vicat tests are carried
out to determine the rheological properties of these grouts having water/cement
(w/c) ratios of 0.5, 0.75, 1.0, 1.25, 1.5, 2.0, 2.25, 2.5. Obtained results
were compared with between them. It was determined that
grouts prepared microfine Portland cement and Normal Portland cement (NPC) with
silica fume additives have better rheological properties and penetration performance
when compared with the normal portland cements.

Keywords

Rheological properties, Normal portland cement, Microfine grained cement

References

• ASTM C 939. Standard Test Method for Flow of Grout for Preplaced-Aggregate Concrete (Flow Cone Method), 1-3, 2003, ASTM, Pennsylvania, USA.
• ASTM C 940. Standard Test Method for Expansion and Bleeding of Freshly Mixed Grouts for Preplaced-Aggregate Concrete in the Laboratory, 1-3, 2003, ASTM, Pennsylvania, USA.
• ASTM C 191. Standard Test Method for Time of Setting of Hydraulic Cement by Vicat Needle, 179-184, 2003, ASTM, Pennsylvania, USA
• BS EN 12715 2000. Execution of special geotechnical work: Grouting, British Adopted European Standard, London, UK.
• Henn, R. W. and Soule, N. C., 2010. Ultrafine cement in pressure grouting, ASCE Publications, Virginia, USA.
• DePaoli, B., Bosco, B., Granata, R., and Bruce, D. A., 1992. Fundamental observations on cement based grouts (2): Microfine cements and the CemillR process, Grouting, Soil Improvement and Geosynthetics, New Orleans, 486-499.
• Kanat, A., 2018, Investigation of the Use of Very Fine Granular Cement and Silica Fume on the Formation and Behavior of Jet Grout Columns, Thesis Project (Continuing).
• Schwarz, L. G. and Krizek, R. J., 1994, Effect of preparation technique on permeability and strength of cement-grouted sand, Geotechnical Testing Journal, 17 (4), 434-443.
• Warner, J., 2003. Soil solidification with ultrafine cement grout. Grouting and ground treatment, Proceedings of the 3rd International Conference, Geotechnical Special Publication, Reston, ASCE, New Orleans, 1360-1371.
• Wong, G.S., A.M. Alexander, R. Haskins, T.S. Poole, P.G. Malone, and L. Wakeley, 2001. Portland-Cement Concrete Rheology and Workability: Final report, FHWA-RD-00-025, Federal Highway Administration, McLean, Virginia.
• Zebovitz S, Krizek R. J, Atmatzidis D.K., 1989. Injection of fine sands with very fine cement grout, Journal of Geotechnical Engineering, 115(1), 1717–1733.