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Early development of properties in a cement paste: A numerical and experimental study

Princigallo, A. / Lura, P. / Van Breugel, K. / Levita, G.

This paper presents the results of an experimental and numerical study of the properties of a high-performance Portland cement paste (w/c ratio 0.37; 5% silica fume) cured at 20 degree C in sealed conditions for 5 days. Properties such as electrical conductivity, strength, stiffness, porosity, Vicat penetration, and autogenous deformation were measured and modelled. The kinetics of hydration was studied by means of isothermal calorimetry. The numerical simulations were performed with CEMHYD3D, developed at the National Institute of Standards and Technology, and HYMOSTRUC, developed at the Delft University of Technology. The results of the simulations were compared with experimental data, and the match was good. Clear correlations were found among electrical conductivity, autogenous shrinkage, and connectivity of solids.

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Early development of properties in a cement paste: A numerical and experimental study

Princigallo, A. / Lura, P. / Van Breugel, K. / Levita, G.

This paper presents the results of an experimental and numerical study of the properties of a high-performance Portland cement paste (w/c ratio 0.37; 5% silica fume) cured at 20 degree C in sealed conditions for 5 days. Properties such as electrical conductivity, strength, stiffness, porosity, Vicat penetration, and autogenous deformation were measured and modelled. The kinetics of hydration was studied by means of isothermal calorimetry. The numerical simulations were performed with CEMHYD3D, developed at the National Institute of Standards and Technology, and HYMOSTRUC, developed at the Delft University of Technology. The results of the simulations were compared with experimental data, and the match was good. Clear correlations were found among electrical conductivity, autogenous shrinkage, and connectivity of solids.

Early development of properties in a cement paste: A numerical and experimental study

Princigallo, A. / Lura, P. / Van Breugel, K. / Levita, G.

This paper presents the results of an experimental and numerical study of the properties of a high-performance Portland cement paste (w/c ratio 0.37; 5% silica fume) cured at 20 degree C in sealed conditions for 5 days. Properties such as electrical conductivity, strength, stiffness, porosity, Vicat penetration, and autogenous deformation were measured and modelled. The kinetics of hydration was studied by means of isothermal calorimetry. The numerical simulations were performed with CEMHYD3D, developed at the National Institute of Standards and Technology, and HYMOSTRUC, developed at the Delft University of Technology. The results of the simulations were compared with experimental data, and the match was good. Clear correlations were found among electrical conductivity, autogenous shrinkage, and connectivity of solids.

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Title:

Early development of properties in a cement paste: A numerical and experimental study

Contributors:

Princigallo, A. (author) / Lura, P. (author) / Van Breugel, K. (author) / Levita, G. (author)

Published in:

Cement and Concrete Research ; 33 ; 1013-1020

Publication date:

2003

Size:

8 Seiten, 28 Quellen

ISSN:

DOI:

https://doi.org/10.1016/S0008-8846(03)00002-4

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

mechanische Festigkeit , elektrische Leitfähigkeit , Steifigkeit , Hydratisieren , Kalorimetrie , Portlandzement , Wasser-Zement-Wert , Mikrosilica , Porosität , numerische Simulation , Theorie-Experiment-Vergleich , Zementpaste

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