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Displaying 76 - 100 of 160

Fluid Transport in High-Volume Fly Ash Mixtures with and without Internal Curing

October 7, 2013
Author(s)
Igor de la Varga, Robert Spragg, Carmelo di Bella, Javier Castro, Dale P. Bentz, Jason Weiss
The transport of fluid and ions in concrete mixtures is central to many aspects of concrete deterioration. As a result, transport properties are frequently measured as an indication of the durability that a concrete mixture may be expected to have. This

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

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

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

Modeling Cement Hydration Kinetics Using the Equivalent Age Concept

March 29, 2012
Author(s)
Xueyu Pang, Dale P. Bentz, Christian Meyer
In this study the hydration kinetics of four different types of cements during early ages were investigated by both chemical shrinkage and isothermal calorimetry tests. Chemical shrinkage tests were performed at both different temperatures and pressures

Internal Curing - Constructing More Robust Concrete

January 19, 2012
Author(s)
Jason Weiss, Dale P. Bentz, Anton Schlinder, Pietro Lura
It is often said that there are two types of concrete: concrete that has cracked and concrete that is going to crack. Unfortunately, this is true all too frequently. Many of these unwanted cracks develop shortly after the concrete is placed and in addition
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