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Materials

Concrete / cement

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Displaying 201 - 225 of 291

Influence of Exposure Conditions on the Efficiency of Internal Curing in Concrete

September 27, 2013
Author(s)
Michael Golias, Dale P. Bentz, Jason Weiss
Internal curing uses pre-wetted fine lightweight aggregate (LWA) to supply cementitious systems with water. This increases the hydration of cement and reduces the influence of self-desiccation resulting in concrete with increased compressive strength

Cement Hydration: The Role of Adsorption and Crystal Growth

August 6, 2013
Author(s)
Gilberto Artioli, Jeffrey W. Bullard
Portland cement is a fundamental structural and binding material for industry and society. Its structural and physical properties at different scales show a complexity that can presently be barely managed through experimental and computational methods

The Computational Materials Science of Concrete: Past-Present-Future

May 8, 2013
Author(s)
Edward Garboczi
From its small beginnings back in the 1960s, computational materials science has come a long way. The field is currently getting even more exciting with ideas like integrated computational materials engineering [1] being seriously considered in the start

Paving the Way for a More Sustainable Concrete Infrastructure: A Vision for Developing a Comprehensive Description of Cement Hydration Kinetics

March 28, 2013
Author(s)
Joseph J. Biernacki, Jeffrey W. Bullard, Constantiner Constantiner, Richard Meininger, Maria Juenger, Josephine H. Cheung, William Hansen, R. D. Hooton, Andreas Luttge, Jeffrey J. Thomas
Hydration of portland cement is the cornerstone of the process responsible for microstructure development in concrete and ultimately controls the kinetics of all materials properties that make concrete such a useful product for society (properties such as

Improving Concrete Bridge Decks with Internal Curing

February 1, 2013
Author(s)
Jason Weiss, Dale P. Bentz, Carmelo DiBella
Transportation agencies strive to provide durable, long lasting concrete bridge decks. While high performance concrete is frequently desired due to its resistance to chloride ingress and corrosion, these mixtures are often accompanied with an increased

Bridging the gap between random microstructure and 3-D meshing

November 10, 2012
Author(s)
Edward Garboczi, Yang Lu
There are different ways of mathematically representing 3-D heterogeneous material structures. But for each of these methods, usually the desired end result is a 3-D finite element mesh that will be used to investigate the mechanical properties of the

An Argument for Virtual Testing in the Cement Plant

September 10, 2012
Author(s)
Pichet Sahachaiyunta, Kittisak Pongpaisanseree, Jeffrey W. Bullard, Paul E. Stutzman, Edward Garboczi, Wilasa Vichit-Vadakan
The cement industry is moving toward customized commodity products, requiring plants that were built to consistently produce thousands of tons of one product each day to now be versatile enough to fine-tune multiple products that meet both industry

Application of Internal Curing for Mixtures Containing High Volumes of Fly Ash

August 1, 2012
Author(s)
Igor de la Varga, Javier Castro, Dale P. Bentz, Jason Weiss
Sustainability has become an important issue in the concrete industry in recent years. One way to make concrete more sustainable is through the replacement of portland cement clinker with alternative cementitious materials such as fly ash. While fly ash is