Assessment of Blended Cements Effectiveness Against ASR by Mortar and Concrete Expansion Tests

Center for By-Products Utilization PROPERTIES OF CONCRETE PRODUCED FROM MULTI-COMPONENT BLENDED CEMENTS

This paper presents a study on the behavior of concrete produced from multi-component blended cements. These blends were prepared by blending 20 percent to 60 percent ASTM Type I cement with the combination of Class C fly ash and clean coal ash. Two percent to four percent sodium sulfate anhydrite was added to the blends as a chemical activator. Tests were conducted on the prepared concrete for...

Influence of Blended Cements with Calcareous Fly Ash on Chloride Ion Migration and Carbonation Resistance of Concrete for Durable Structures

The objective of this paper is to examine the possible use of new blended cements containing calcareous fly ash in structural concrete, potentially adequate for structural elements of nuclear power plants. The investigation included five new cements made with different contents of non-clinker constituents: calcareous fly ash, siliceous fly ash, ground granulated blastfurnace slag, and a referen...

Deterioration and Restoration of Plaster, Concrete and Mortar

This paper discusses plaster, concrete and mortar in terms of their chemical composition, reviews the deterioration of these materials and suggests possible conservation treatments for them. In terms of chemical components, plaster is considered in this paper as being formed primarily of calcium carbonate or calcium sulfate dihydrate (or a mixture of the two); concrete as primarily a mixture of...

Effectiveness of Blended Learning

The introduction of blended learning added new dimension to training, and the possibilities for delivering knowledge and information to learners at an accelerated pace and opened new vistas for knowledge management. Industry pioneers and academicians agree that blended learning will continue to become a driving force in business and in education. Few years ago the term blended learning was not ...

HIGH-PERFORMANCE, BLENDED CEMENTS IN WISCONSIN Vol. I: STATE OF THE ART ASSESSMENT