Abstract
The flow behaviour of cement paste depends significantly on the type and dosage of the superplasticizer used. The Marsh cone and mini-slump tests of the cement paste are simple and easy tests for assessing the flow properties of cement paste. In this paper, the ability of these tests to replicate the results under constant execution conditions has been studied. The variability introduced by inherent random errors during the testing process has been quantified in terms of repeatability values for these tests. The test results confirmed good repeatability, indicating that the test methods are robust.
References
Agullo, L., B.T. Carbonari, R. Gettu, and A. Aguado (1999) Fluidity of cement pastes with mineral admixtures and superplasticizer - a study based on the Marsh cone test. Materials and Structures, 32, 479-485.
Aїtcin, P.C., C. Jolicoeur, and J.G. Macgregor (1994) Superplasticizers: How they work and why they occasionally don’t. Concrete International, 16, 45-52.
Aïtcin, P.C. High performance concrete. E& FN Spon, London, 2019.
Chakkamalayath, J., M. Abdulsalam, and S. Al-Bahar (2022) Compatibility of Superplasticizers with Cement Paste and Concrete Mixes Containing Type I and Type V cement, and Volcanic Ash. Innovative Infrastructure Solutions, 7, 259.
de Larrard, F., C.F. Ferraris, and T. Sedran (1998) Fresh concrete: A Herschel Bulkley material. Materials and Structures, 31, 494-498.
Giaccio, G. and R. Zerbino (2002) Optimum superplasticizer dosage for systems with different cementitious materials. The Indian Concrete Journal, 76, September, 553-557.
Gomes, P.C.C. (2002) Optimization and characterization of high strength self compacting concrete. Doctoral thesis, Universitat Politecnica De Catalunya, Barcelona, Spain.
IS 15393 (Parts 1 – 6) (2003) Accuracy (trueness and precision) of measurement methods and results, Bureau of Indian Standards, New Delhi.
ISO 5725 (Parts 1 – 6) (2023) Accuracy (trueness and precision) of measurement methods and results, International Organization for Standardization, Switzerland.
IS 9103: 1999 (Reaffirmed 2018) Concrete admixtures — specification (First revision), Bureau of Indian Standards, New Delhi, India.
Jayasree, C. and R. Gettu (2008) Experimental study of the flow behaviour of superplasticized cement paste. Materials and Structures, 41, 1581–1593
Jayasree, C. and R. Gettu (2010) Correlating properties of superplasti cized paste, mortar and concrete. The Indian Concrete Journal, 84 (7), 7–18
John, E. and Gettu R (2014) Effect of temperature on flow properties of superplasticized cement paste. ACI Materials Journal, MS no. M-2012-147.R2, January-December 2014
Kantro, D. L (1980) Influence of water reducing admixtures on properties of cement paste - A miniature slump test. Cement, Concrete and Aggregates, 2, 95–102.
Lachemi, M., K.M.A Hossain, V. Lambros, P.C. Nkinamubanzi, and N. Bouzouba (2004) Self compacting concrete incorporating new Viscosity modifying admixtures. Cement and Concrete Research, 34, 917-926.
Lachemi, M., K.M.A. Hossain, R. Patel, M. Shehata, and N. Bouzoubaa (2007) Influence of paste/mortar rheology on the flow characteristics of high volume fly ash self consolidating concrete. Magazine of Concrete Research, 59, 517- 528.
Roncero, J., R. Gettu, P.C.C Gomes, and, L. Agullo (2000) Study of flow behaviour of superplasticized cement paste systems and its influence on properties of fresh concrete. pp. 273-294. High Performance Concrete: Research to practice, American Concrete Institute, USA.
Roussel, N and P. Coussot (2005) “Fifty cent rheometer” for yield stress measurements: From slump to spreading flow. Journal of Rheology, 49, 705-718.
Roussel, N. and R.L. Roy (2005) The Marsh cone: a test or a rheological apparatus? Cement and Concrete Research, 35, 823-830.