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Displaying 151 - 160 of 160

Influence of Calcium Hydroxide Dissolution on the Transport Properties of Hydrated Cement Systems

January 1, 2001

Author(s)

J Marchand, Dale P. Bentz, E Samson, Y Maltais

Calcium hydroxide is one of the main reaction products resulting from the hydration of Portland cement with water. It is also one of the more soluble phases found in hydrated cement systems. The influence of calcium hydroxide dissolution and its effect on

Effect of the Interfacial Transition Zone on the Conductivity of Portland Cement Mortars

May 1, 2000

Author(s)

J D. Shane, T Mason, D A. Jennings, Edward Garboczi, Dale P. Bentz

The electrical conductivity of portland cement mortars was determined experimentally as a function of the volume fraction of sand and degree of hydration. The results were analyzed using theoretical models that represent the mortars as three-phase

Studies of Hydration and Drying in Cement Pastes by Scanning X-Ray Absorptiometry

October 1, 1999

Author(s)

K K. Hansen, Dale P. Bentz

Hydration and drying in cement pastes are studied by the x-ray environmental chamber at DTU. By using the x-ray detector to detect changes in internal density (indicative of drying), the influence of w/c ratio on drying during hydration is quantitatively

Computer Simulation and Percolation Theory Applied to Concrete.

January 1, 1999

Author(s)

Edward J. Garboczi, Dale P. Bentz

Concrete is a multilength scale composite material. From the nanometer to the millimeter scale, it is a random composite, and a different random composite at each length scale. Percolation processes play a key role in the microstucture of concrete, and

Computer Simulation of Interfacial Zone Microstructure and Its Effect on the Properties of Cement-Based Composites.

January 1, 1995

Author(s)

Dale P. Bentz, Edward J. Garboczi, E Schlangen

Much recent research on the materials science of concrete has focused on the characteristics of the interfacial zone between cement paste and aggregate and its effects on mechanical and other properties. This chapter reviews recent computer modelling work

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