Consolidating concrete bridge structure applications
Much of the experimental work to date on SCC has focused on gray cement, but there are opportunities for white cement formulations.Concrete producers know that there is quite a bit of development associated with any mix design.They take into account the difference in chemistry of white cement and gray cement, dosages of cement, water and admixtures, etc.Alternately, a mixture can be initially designed in white portland cement.The uniformity of an SCC mixture reduces the permeability and enhances the overall durability of the concrete.This, in turn, enhances the lifespan of the SCC beyond that of conventional concrete (Corinaldesi 2005); thereby reducing the environmental footprint on a unit time basis. Defined by the American Concrete Institute as “concrete which will be permanently exposed to view and which therefore requires special care in selection of the concrete materials, forming, placing and finishing to obtain the desired architectural appearance,” it is showing its face everywhere.Examples of applications are buildings and transportation structures like bridges and highway sound/barrier walls.
The self-consolidating property eliminates the need for vibration, which reduces the labor requirement for SCC placement.
Fortunately, this also leads to a durable material because water, precipitation, and aggressive chemicals or ions are shed by the surface skin.
Conventional concrete is placed using vibrators to fill the forms.
Self Compacting Concrete Based on AALBORG WHITE® Concrete is inherently a sustainable material.
Some of its many sustainable properties and applications are further enhanced with the use of self-consolidating concrete (SCC).